Service Bulletins and Service Difficulty Reports




Names of submitters not required. Many thanks to those of you who contribute to this important section.

Please note, this information is a compilation of all Service Bulletins and Service Difficulty Reports which have been submitted to the Lancair Network News for publication, and includes the complete data list for all Lancair models. I will be happy to include any additions and corrections to this SB/SDR list in the next edition of the LNN. Feel free to send me an email with your submissions, or contact the Lancair Network News directly at (941)-694-3757. Thanks in advance for your support.




Please note: I have attempted to make model-specific entries more easily accessible by publishing separate pages for the 2-seat aircraft, the IV series, and the ES, but would like to remind everyone that the Lancairs comprise a family of aircraft and frequently cross-utilize building methods and materials. With this fact in hand you need to consider that it's possible that reports listed here that are specific to a given model may well have an impact on other models, even though the other models are not included under the "Model" heading in the table. My recommendation would be to scan the entire list for entries which seem general in nature and make note of those that you find pertinent, then add them to your model-specific entries as you see fit.

Model-specific SDR pages are not up to date as of 2/10/2000, although they will be shortly.






MODEL

DATE

REF. #

DESCRIPTION

SOURCE

IV-P 01/00 SB053-0100 Mandatory inspection of sonic port installation on FB Engine Option. Part number LIVF-FFII Lancair
320/360 01/00 SDR Submitter reports finding missing BIDs on forward face of GM12 attach point while applying SB050-0999. See article LNN p573
IV / IV-P 01/00 SDR IVP fastbuild kit gear box was missing the strap between the bumper stops on the gear legs. Part number GM 459-04. Submitter suggests verifying inclusion of part on fastbuild main-gear boxes. LNN p571
320/360 01/00 SDR An early gear retraction on takeoff resulted in prop damage. Submitter suggests setting the anti-retract switch to 90 knots rather than 70. LNN p571
IV 01/00 SDR Submitter reports increase in cockpit CO (carbon monoxide) levels from negligible during cruise to 41ppm during landing phase when full flaps were deployed. Suspected cause was change in airflow over bottom of fuselage and ingestion of exhaust gases through the gear doors. LML
320/360 01/00 SDR Submitter reports wood prop departing the aircraft resulting in off field landing. Submitter suggests increasing frequency of prop bolt torque checks especially during the winter when humidity levels are lower which can add to shrinkage of the prop around the bolt holes. NTSB / LML
IV / IV-P 12/99 SB052-1299 On some installations the flap cylinder stroke may exceed the travel available in the flap tracks causing unnecessary loads on the flap system components. This condition could cause component failure. Lancair
320/360 10/99 SDR Submitter advises that the nylon trim clamp on the elevator push rod may fail due to cracking from over tightening. Submitter suggests putting a hose clamp on either side of the nylon clamp. LNN p. 558
IV/IVP 10/99 SB51-0999 AN816-4-4D inside diameters used in the gear shuttle valve assembly were shipped with an inside diameter too small to accommodate the spring. This may cause the emergency gear extension hand pump to be inoperative. Lancair
200/235/320/360 10/99 SB50-0999 Secondary main gear attach block (GM13) delamination from lower spar cap and GM4 bracket cracks require inspection and reinforcement. Lancair
IV 10/99 SDR Catastrophic failure of the Bell Crank, Flap Push Rods, Fowler Flap Tracks, or attachment of the Flap Tracks to the spar is possible. Visually exam the gear case during actuation, remove the 4N-16A bolt holding the cylinder rod end, and cycle the cylinder to see if it is moving past the physical limits of the Bell Crank swing in either direction. Examine the Bell Crank for evidence of elongation of the bolt hole or cracking of the assembly. Examine the Flap Push Rods for damage, as well as the Fowler Flap Tracks and their attachment to the Spar, and the attachments to the Flaps themselves. Correction of the problem may be made by disassembly of the base end of the cylinder, and inserting an EL-6B hollow spacer in the cylinder to limit the throw of the cylinder. E-mail
IV 10/99 SDR During final adjustment of the flap push rods noticed gear box flex. Installed 3/16" depth spacer internally at rear of flap actuator which eliminated the flexing. Verbal
320/360 08/99 SDR Elevator trim centering spring nylon block failed after several years of use. Submitter suggests that the nylon block be inspected under load prior to next flight. LNN page 546
320/360 08/99 SDR Nose gear failed on first test flight due to shimmy. Submitter suggests that if your strut is manufactured by ARO TEK or is numbered 1-50 that Lancair be contacted for a replacement with the newer ESCO strut. LNN page 553
320/360 07/99 SDR At 141 hours total time submitter reports voltage regulator and alternator noise suppression diode failure on his Lancair 320. Replaced voltage regulator with B&C Specialty Model LR-3B/14 as original version supplied with kit is no longer available. LNN page 546
320/360 07/99 SDR At 188 hours total time submitter found that hydraulic pump cycled ON and OFF continuously with the gear in the down position, indicating an internal leak in the hydraulic system. Replacing right gear retract cylinder corrected the problem. E-mail
320/360 07/99 SDR Submitter advises owners with Parker brakes to pay particular attention for brake drag which may indicate corrosion of the puck. If brake drag is suspected, the pucks should be inspected prior to any flight to make sure they are fully and easily retracting into their housings. LNN page 537
320/360 07/99 SDR Submitter advises that the forward hinged canopy acts as a magnifying glass and will burn a hole in your dust cover if left open with the sun aft. LNN page 536
All 07/99 SDR Be advised that any nose gear strut that has been rebuilt should be checked to insure that the flange is properly secured. The rebuilt struts are sent out with the strut flange loose so that the builder can set the wheel to track straight and then tighten the flange. E-mail / LNN page 535
320/360 06/99 SDR The aileron vibrated/fluttered at all speeds. Submitter reported that installation of half moon ribs to stiffen the bottom aileron skin where it cantilevers to the counter weight resolved the problem. E-mail
320/360 05/99 SDR Submitter reported a failure of the nose gear tunnel hydraulic cylinder attach point at 7 hours TT and suggests that the hydraulic cylinder should bottom out as the over center link locks. LML
All 04/99 SDR Submitter reports that the Electronics International fuel indicating system reports false fuel quantities when the VHF com is transmitting. LNN page 527
320/360 04/99 SDR Submitter reports flat tire due to bad inner tube. E-mail
320/360 04/99 SDR Submitter reported a failure of the GM6 casting that fits on top of the main gear compression donuts. Failure of this casting could result in the gear hanging up in the gear well. E-mail / LNN page 519
IV/IVP 03/99 SB49-0399 Main gear hydraulic cylinder must be inspected/repaired to insure the piston has not begun unscrewing itself from the shaft. A measurement must be made each 100 hours between the cylinder housing and shaft shoulder. Lancair
IV 387 to 416 only 03/99 SB48-0399 There is a possibility of too much fuel draining out of the inboard bays during maneuvering causing momentary loss of fuel to the engine. Fix involves installing a baffle at BL38 or install a plug to restrict the flow of fuel from the inboard fuel bay. Lancair
IV 387 to 405 only 03/99 SB47-0399 The left wing may have a vent or drain hole leading into the pitot tube compartment. If so it must be sealed. Lancair
320/360 02/99 SDR Submitter advises that the Matco Brake disk fractured. Upon inspection the other disk was found to be cracked. LNN page 502
235/320/360 02/99 SDR Submitter reported receiving new tubes with pin holes in the side walls. Submitter suggests inflating tubes and checking for leaks prior to installation of the tubes. Verbal
L-IV 02/99 SDR Submitter reports that the locking geometry on the door latch mechanism is not workable as per Lancair drawing number 3540. A discussion with solutions is included. LNN page 507
235/320/360 01/99 SDR Submitter suggests lubricating the rudder cables that ride in the Nylaflow tubing with Teflon powder. Use caution in selection of lubricants as some may cause premature wear of the nylon tubing. E-mail
235/320/360 01/99 SDR In our previous 3 years of flying N3603R we have experienced only 2 flats on apparently good tires. Recently during January's cold we have had a rash of three flats in 2 weeks. All were tube holes in the tube side wall within three inches of the valve stem, with no apparent tire damage either inside or out. All 11x4.00-5 tubes were obtained from Neico within the past year. Tube numbers were: 28037257, LAMB 0032377 and CHENC SUM 24066256 Internet
235/320/360 12/98 SDR Submitter reported that the engine mount was cracked on both sides just above the GM15 nose wheel mounts. Airframe had 540 hours. LNN page 486
235/320/360 12/98 SDR Pilot reports poor braking with the Matco brake pads. Submitter recommends changing to Cleveland's #66-106 pads for more effective braking. LNN page 487
IV 12/98 SDR Pilot reported that the side window blew out at FL230 and 5 psi differential cabin pressure resulting in a rapid decompression. Submitter recommends complying with SB40. LNN page 487
IV 12/98 SB46-1298 All S/N 387 through 407 must return the trim tab back for a replacement which has increased rigidity. Neico
IV 10/98 SB45-1098 It is the builder's responsibility to insure that at least one complete thread is through the fastener. If the Click Bond nutplates break return for replacement and proper installation instructions. Fuel vent lines are now 3/8 inch. Contact Neico if the left flap bellcrank and access panel interfere. Neico
IV/IVP 9/98 SB44-0998 FL161-01 central flap actuator cylinder bellcrank upper arm need a reinforcing strap. An exchange program is in effect. Neico
IV 9/98 SDR Submitter noted a failure of the nose gear link and suggests replacing the old link with the newer bigger link. LNN page 473
IV 9/98 SDR Submitter broke his finger due to the cabin door gas strut socket end failure and a sudden closure of the door onto his finger. LNN page 473
IV 9/98 SDR Submitter suggests that the higher capacity Woodward EXP210903 be used with the oversized MT four bladed prop to lessen the probability of prop over speeds. Submitter suggests that the prop bolts be re-torqued at the manufacturer's recommended intervals or after the first 20 hours. Submitter suggests when using the oversized MT four bladed prop that one of the two coaxial springs that drives the prop to fine pitch be removed to reduce the load on the prop governor. LNN page 472
235/320/360/ES/IV 9/98 #1487 Cylinder oil drain back tubes must have a minimum clearance of 1/8 inch from all other components. Textron Lycoming Service Instruction
IV 9/98 SDR Electrosystem's alternator failed do to a failure of the oil seal. Submitter suggests that the blast tube be inspected for engine oil periodically. Email
235 9/98 SDR The two main bearings of my MTV-1-F/155-07 two-bladed, electric constant speed prop were leaking grease onto the blades. Examination revealed that the two main bearings were shot. Repair cost was $1,400. Email
320 9/98 SDR A Hartzell 2-blade constant-speed prop and standard fiberglass spinner with the back plate doublers installed has experienced rivet head separation failures on three of the doublers in one of the outside holes on each of the three. The doublers were mounted on the forward face of the back plate with the rivets heads forward. These rivets were set with a squeezer. Total tach time on the assembly is 60 hours, with the last successful inspection 20 hours before the failures were discovered during dynamic prop balancing. Email
320 8/98 SDR Noted movement of 1/2 bolt phenolic attach point at inboard end of the main landing gear over center link. LNN p. 464
IV/320/360 8/98 SDR Submitter suggests washing the interior fuel tanks prior to close out to remove all dust and construction debris that could clog up the fuel filters. LNN p. 457
320/360 8/98 SDR Submitter suggests that the canopy be shaded because the cockpit is too bright and too hot. Verbal
320/360 7/98 SDR Upon touch down the nose wheel tire went flat. It was determined that this was caused by the inner tube being pinched between the two wheel hub halves. LNN p.456
320/360 6/98 SDR Submitter reports that the adjustable rudder pedals from Neico put too much tension on the rudder cables causing some binding and recommends weaker springs be used. LNN p.445
320/360 5/98 SDR A failure of the up gear relay may cause an inadvertent gear retraction with the gear switch down. LNN p.454
320/360 5/98 SDR Submitter reports that the second generation hydraulic pressure switches failed in flight causing the pump to run continuously. verbal
320/360 5/98 SDR Submitter warns that some fuel tank contaminants didn't show in the fuel filter until after 15 hours of flight. He recommends that the fuel filter screens be checked frequently for the first 50 hours at least. LNN p.445
IV/IVP 5/98 SDR Submitter warns high fuel in the tank temperatures and high altitude may cause fuel vapor problems and a rough running engine. LNN p.442
all 5/98 SB43-598 The nose strut Shimmy dampening system must be maintained or risk damaging the engine mount. Neico
IV/IVP 5/98 SDR In the interest of safety, Martin Hollmann strongly suggests installing a stall trip on each wing. LNN p.427
320 5/98 SDR Operator noticed a 3/32" movement of the nose gear tunnel hard point used for the nose gear cylinder attach bracket. The movement was accompanied by a cracking sound. Submitter suggests inspecting the area for signs of fatigue. Email
320/360 5/98 SDR Submitter suggests that the seat height be adjusted by inserting foam boosters to insure a clear view out the wind screen in all directions without obstruction by the instrument panel or canopy frame. LNN p.426
360 4/98 SDR Nose gear link failed during taxi tests. Verbal
320/360 3/98 SDR Submitter recommends that the bolt holding the lower end of the nose gear hydraulic cylinder be properly inserted to prevent the threads from contacting the gas spring resulting in failure of the gas spring at the rod end. LNN p.426
320/360 3/98 SDR The GM13 phenolic block that holds the upper inboard main gear over center link came loose. All the Lancairs flying in Holland that were closely inspected had the same problem. Submitter suggests that the GM13 blocks on all aircraft be inspected for security. E-Mail
all 3/98 SDR For GPS units an interference ramp check must be accomplished by keying the mike on freqs. 121.125 thru 121.250 and 131.200 thru 131.350 for 30 seconds each. Some GPS degradation may be noted but a degradation resulting in the GPS flag makes the unit non IFR certifiable. Aircraft Maintenance
ES/IV 2/98 SB042 The fuel vent line has shown signs of degradation and may collapse over time. A blockage of this hose could cause engine stoppage. Inspect and replace with 193-4 hose. Neico
320/360 3/98 SDR Submitter found that all four mounting holes of the prop spinner backing plate were cracked. TT 200 Hrs. Verbal
all 2/98 ANE-98-24 Internal locking washers on Lycoming engines P/N STD-160 "star washers" should not be reused at overhaul or any time they are removed. FAA
320/360 2/98 SDR Submitter noted that the main gear over center spring snapped at 30 cycles and suggested that the newer less brittle springs be installed which are now available from Neico. LNN p. 420
320/360 2/98 SDR Submitter noted severe wear on the GM-31 axle spacer at 382 hours TT. LNN p. 419
235 2/98 SDR Submitter suggests that the non standard "big engine" powered L-235’s be equipped with an additional rib to prevent a tail flutter. LNN p. 415
IV/IVP 2/98 SDR Submitter suggests that secondary stalls and spins be avoided in IV’s due to the large altitude loss required to effect a recovery. LNN p. 414

IV/IVP

1/98

SDR

Submitter recommends that intentional secondary/deep stalls may result in spins and must be avoided until further notice.

Verbal

320/360

12/97

SB406A

Check insufficiently tightened cover attaching screwsd on the Titan AN type gear driven fuel pump to prevent fuel leakage.

Textron Lycoming

320/360

12/97

SB505B and 530

Most four cylinder Textron Lycoming 320 and 180hp 360 engines using fixed pitch propellers except new engines shipped afterr 2/15/97 require inspections for crankshaft I.D. corrosion and application of a protective coating.

Textron Lycoming

IV

11/97

SB41-1197

A few incorrectly detented flap valves marked 8443E-6D2PH were supplied with IV kits. Check your flap valve for the correct marking 12-693-1.

Neico

IV

11/97

SB40-1197

Prior to pressurized flight a fix to prevent cabin door window cracking is required. The fix involves counter boring, tinnerman washers and Hysol/flox filler.

Neico

IV

11/97

SB39-1197*

Landing gear GM461 corner bracket needs three AN5 installed on the forward face of the gear box and the flange of the gear box as shown in the construction manual pages 19-57/58. Only one of the three bolts is installed on the fast build leaving the other two for the builder.

Neico

IV

11/97

SDR

Subsequent investigation showed that the part number 94011-20 mentioned in the 8/97 SDR published in LNN p. 374 was incorrect. All four of the isolators (motor mounts) should be p/n 94001-01 (and not 94011-20 as reported), which are green in color, and are stiffer than the incorrect black ones provided by Lancair and listed in the original manual drawing. Again, the correct p/n is 94001-01. Installation of this p/n removed one inch of sag from the spinner.

Email

235/320
360

10/97

SDR

The Nylaflow tubing used for the brakes became brittle and broke resulting in loss of braking and directional control. Submitter recommends checking the tubing for brittleness.

LNN p. 390

MK-II tail

10/97

SDR

The elevator control horn had been shortened by one inch to increase stick forces. The proper distance from the center of rotation to the rod end bearing attach point should measure 2.7".

LMV11I3p15

IV-P

10/97

SDR

Referencing SB39-997 it is recommended that the door window's two bolt hole clearances be increased and tinnerman washers be added on the outside to prevent the possibility of a too close tolerance and subsequent crack and/or window failure.

LMV11I3p14

320/360/
ES/IV

10/97

SDR

Neico recommends a new procedure for servicing the nose gear strut on the aircraft. This procedure puts the right amount of fork oil in the strut without having to weigh the oil as in the older procedure.

LMV11I3p13

320/360/
ES/IV

10/97

SDR

BC4W10A bellcrank bearing assembly identified by the split in the middle of the bearing requires an AN960-416 washer on each side to prevent binding with the bracket.

LMV11I3p12

IV

10/97

SDR

Engine intake alternate air door spring and hinge pin were found against the turbo charger blades. Frequent inspections of both doors and hardware are advised and one of the doors could be eliminated. Neico is working on a system revision.

LMV11I3p10

IV

10/97

SDR

Engine intake alternate air door spring and hinge pin were found against the turbo charger blades. Frequent inspections of both doors and hardware are advised and one of the doors could be eliminated. Neico is working on a system revision.

LMV11I3p10

IV

9/97

SB38-997

Filter Bypass door vibration causes door springs to break resulting in turbo intake contamination.

Neico

IV

9/97

SDR

B&C alternator field connector failed. Submitter recommends using all three spades of the connector for additional support even though only one is required to make the alternator operational.

Verbal

235

9/97

SDR

Submitter reported a flutter from the empennage area at about 5,000' and 220 knots true and recommends that the published Vne be conservatively observed until further notice. The A/C was a 235 with about 325 hours TT powered by an O-320. Weighing of the control surfaces, A/S calibration, and further testing is in the works.

Verbal

IV

8/97

SDR

Submitter found that the old style vibration isolators sag too much and suggests that the newer 94011-20 be installed. (This data incorrect! See SDR posted 11/97 for correct part number.)

LNN p. 374

235/320
360

8/97

SDR

Submitter found that the source of a leak between the high and low pressure side of the hydraulic system was the emergency extension dump valve. It is suggested that the valve not be overlooked should an internal hydraulic leak develop.

LNN p. 382

IV

8/97

SDR

Submitter advised that there is an interference between the right flap push tube and the bolt that attaches the hydraulic flap cylinder to the center flap bell crank which may wear a groove into the push rod. It is suggested that the tube be inspected.

LNN p. 376

IV

8/97

SDR

Submitter advises that the composite bonding surfaces should be thoroughly sanded for adequate bond. No shiny areas should be seen.

LNN p. 372

320/360
ES/IV

8/97

SDR

Submitter reports that thte annunciator system sold through this publication (LNN) can be easily modified tp eliminate recurring Master Warnings which result when interfacing to other vendors' "flashing" ground faults. A detailed instruction is forthcoming.

Verbal

M-II

8/97

SDR

Submitter cautions M-II builders that there have been several changes made to the horizontal stabilizer instructions regarding rib placement and some other minor details. If you have not completed the stab a check with Neico would be advised to insure you have the newest supplement.

Verbal

IV

7/97

SB37-
0797

To detect leaks in the brake line which passes through the gear leg, a "witness" hole should be drilled. The "witness" hole should then be inspected for brake fluid prior to each flight.

Neico

IV

7/97

SB36-
0697*

The slot in the gear solenoid pin in the gear locking solenoid may interfere with drum rotation. A replacement of the solenoid pin with P/N 475-6-10 is required.

Neico

320/360/
ES/IV

7/97

SB35-0697

Verify that the tubes shipped after January 1996 for controls are 6061-T6 by observing the manufacturers labeling. 5052-0 tubing is too soft for controls.

Neico

235/320/
360

7/97

SDR

The pivot bolt/sleeve connecting the main gear leg casting GM2 and the gear leg weldment GM1 was corroded and seized. Submitter recommends that the bolt/sleeve be lubricated when installed and checked and relubricated at each annual condition inspection. TT 100 hrs/2 years.

Verbal

IV

6/97

SDR

Submitter reported an interference between the interior side panels and the elevator push tube in the area of the rear seat belt.

LNN p. 366

IV

6/97

SDR

The flap rod end bearing to hydraulic actuating cylinder came partially unscrewed. Submitter suggests that the jamb nut be checked for tightness and the threads treated with lock tight and that a periodic check be made to insure that full flap extension is achieved when full flaps are selected.

LNN p. 366

320/360/
ES/IV

6/97

SDR

Submitter suggests that the RSA throttle body fuel filter be removed, cleaned and inspected in accordance with the maintenance and overhaul manual to avoid contaminants from reaching the flow divider and injectors.

LNN p. 361

235/320/
360/IV

6/97

SDR

Old style UD-3 gas cap may become difficult to secure and may spin in its filler ring. Submitter suggests you get the newer style UD-3 with nylon coated wedges eliminating these problems.

LNN p. 360

IVP

5/97

SDR

Neico strongly recommends that all IV-P's be pressure tested on the ground to 6.5 psi prior to the first pressurized flight.

LMV11#1p10

ES/IV

5/97

SDR

A batch of elevator trim tab control horns were shipped with attachments holes .005" too large. The holes should be .125+0, -.001. Please check.

LMV11#1p10

IV

5/97

SDR

The breather line coming from the air/oil separator should be inspected periodically for coagulated residue that could result in pressurizing the crankcase.

LMV11#1p5

IV

5/97

SDR

A difficult to detect crack occurred in the TSIO-550 exhaust pipe just below the TIT sensor fitting

LMV11#1p5

IVP

5/97

SDR

Outflow valve filter plugging causing outflow valve malfunction could be prevented by vacuuming the cabin prior to the first flight.

LMV11#1p5

IV/ES

5/97

SB34-0597

An inspection for a crack in the oil cooler flange is recommended on both the TSIO-550 and the IO-550.

Neico

IV/ES

5/97

SB33-0597*

A test should be performed on the fuel valve with the engine running to check for engine shut down in 30 to 90 seconds after the valve is moved to the off position. The valve should also turn freely.

Neico

IV/ES

5/97

SB32-0597

Inadvertent flight into heavy icing conditions could cause controls to stick due to ice build up in gaps less than 1/4" in the area of the counter balance.

Neico

IV

5/97

SB31-0497*

Nose gear door tab snagged by the wheel strap which could possibly prevent nose gear extension.

Neico

IV/ES/
MKII

5/97

SB30-0597*

Inspect elevators with travel stops for possible control interference. This SB is mandatory.

Neico

235/320/
360/IV

4/97

SB

Textron Lycoming Mandatory Service Bulletin recalls piston pin part no LW-14077 marked 17328. This bulletin contains a detailed listing of engine and cylinder kits serial numbers affected.

Textron Lycoming SB#527C

320/360

4/97

SDR

Submitter had a failure of the nose gear tunnel composite structure where the nose gear hydraulic cylinder bracket is attached.

LNN p. 354

320/360

4/97

SDR

Submitter stated his dragging brake problem was the result of an interference between the rudder pedal casting/brake cylinder rod assembly. Be sure the cylinder is allowed to fully extend.

LNN p. 351

320/360

4/97

SDR

The hydraulic sequence valve plunger's adjustment screw fell out. It is recommended that the screw be locked into position. Using a lock nut MS21042 reduced dimension hex will work.

LNN p. 351

320/360

4/97

SDR

Submitter experienced nose gear shimmy at about 60 hours TT. He had not complied with AD009-92 and recommends that this be a mandatory AD not optional.

LNN p. 351

320/360/
IV

4/97

SDR

Submitter stated that a control push tube supplied in his 320/360 kit was Al 5052 tubing which is used for fluid lines and is quite soft. 5052 tubing is not intended for structural applications and should be so marked.

LNN p. 347

320/360

4/97

SDR

The AVM nose gear gas spring was bent 1 and 1/2 inches from the shaft end. The pivot points were free. The manufacturer suggested that if the gas spring is retracted too fast that it could bend. Submitter suggests inspecting the gas spring frequently.

Verbal

IV

3/97

SI

At engine installation and at 100 Hour inspections it is recommended that the turbocharger density controller be adjusted to insure engine is developing full throttle power.

Textron Lycoming SI#1187

IV/320/
360

3/97

SB

D-2000 and D-3000 impulse magnetos springs have broken which may caused complete engine failure.

Textron Lycoming SB# 526

IV

2/97

SDR

Submitter found that the main gear doors torqued enough to prevent main gear retraction above 100 knots.

LNN p. 340

IV

2/97

SDR

Submitter suggests that you carefully re-preserve your stored new Continental prior to 60 days and note that in the engine log book to protect your TCM warranty.

LNN p. 340

235/320/
360

2/97

SDR

Submitter noted that the AL-2 aileron rod end bearing when properly installed restricted elevator travel and suggests installing three special washers.

LNN p. 332

235

2/97

SDR

Submitter found that the GM9 main gear shock absorbers did not have adequate preload in cold weather to prevent a proper alignment of the gear doors when retracted. Submitter suggests that you jack your aircraft and insure that there is no relative motion between GM1 and GM2.

LNN p. 331

IV

2/97

SDR

Submitter found that the tab on the left nose gear door caught the nose wheel strap during an on the jacks extension cycle. Submitter suggests that the nose gear be cycled on jacks with a side load on the gear doors to insure they are brushed aside without snagging the gear.

LNN p. 330

IV/ES

2/97

SDR

Neico is offering a 3rd generation fuel spindle that is designed to eliminate high rotational friction.

LM V10#4p2

235/320/
360

2/97

SDR

Neico recommends that the nose gear door hinge screw lengths be kept to a minimum to avoid snagging the nose gear fork and that a ground gear cycle check be accomplished after any tear down/reassemble.

LM V10#4p8

IV

2/97

SDR

Neico recommends that fuel selectors with a "both" position not be used due to the increased possibility that either pick up line could become unported causing fuel starvation.

LM V10#4p10

320/360

2/97

SDR

Submitter reported that his Sky Tec starter engaged in flight discharging the battery causing an emergency gear extension among other problems. The problem was a starter relay that failed in the closed position. Submitter suggests installing the starter relay upside down.

Verbal

235

1/97

SB 453D

All O-235 series engines shipped between 12-10-76 and 11-8-79 and engines that had push rods replaced between 12-10-76 and 11-24-80 may have excessive valve clearance possibly caused by mushromming of the push rods causing damage to the valves.

Textron Lycoming SB No. 453D

360

1/97

SDR

At 160 hours TT a portion of the exhaust manifold broke falling to the bottom of the cowling blocking the nose gear from fully extending. The crossover system was the standard used for the IO-360 bottom mounted throttle body. It is suggested that the exhaust system be inspected periodically. note: billy houfman (504) 384-0610 will send in article

Verbal

IV

1/97

SDR

Cleveland brake caliper leak. Disassembly revealed the bores were corroded. Submitter polished bores, installed new "O" rings and returned the brakes to service. Submitter suggests dissembling, cleaning and inspecting new units prior to installation.

Verbal

320/360

1/97

SDR

Prop spinner backing plate failed in flight with a third of the nose cone spinner departing the aircraft. Submitter suggests installing a rubber disk at the front of the prop dome to stabilize the front of the nose cone.

LNN p. 319

IV

1/97

SDR

Submitter suggests caution that the front fuel bays drain completely via the crossover tube.

LNN p. 313

360

1/97

SDR

Short aileron spar, mismatch between the vertical stab and rudder, and dimensional error on outback gear blueprint.

LNN p. 311

235/320/
360

1/97

SDR

Matco reports that some bearing shim wear may be the result of not tightening the axle nut enough. The bearing must not rotate with the wheel. The wheels will have a lot of drag when tightened properly.

LNN p. 310

235

12-96

SDR

When the 235 sits on its main gear in cold weather, it was reported that, the main gear rubber donuts take a set causing the middle gear door to misalign upon gear retraction.

Verbal

IV

10-96

SDR

Neico advised that the main gear doors be stiffened to prevent the doors jamming on the wheels during the retract cycle.

LM V10#3p9

IV-P

10-96

SDR

Door window failure in flight with 3.5 psi differential. See Lancair Mail for details of several possible causes of the failure

LM V10#3p4

235

10-96

SDR

Submitter reported that the GM-28 gas cylinder for the nose gear sheared at the last thread root

LNN p. 303

IV/ES

10-96

SB

Precise Flight advises that the rigging and adjustment on their simplex unit is easier if the retract cam is modified.

LNN p. 300

320/360

10-96

SDR

Submitter advised that the replacement axles from Matco were longer than the originals preventing the main gear from fully retracting.

LNN p. 306

320

10-96

SDR

Submitter noted that his 1990 hydraulic pump was shutting down prior to full gear retraction and then restarting to finish the retraction. Upon further investigation he found that the power pack's spool was installed backwards. He also noted that the reservoir was cracked in several places.

Verbal

360

10-96

SDR

Nose gear shimmy due to a loss of oleo fluid. There was a small fluid leak around the hex bolt on the front of the oleo. Submitter removed paint under the rotation key hex bolt's bonded washer and reinstalled/serviced with no further leak or shimmy.

LNN p. 301

320/360/
IV/ES

10-96

SB 527A

Textron Lycoming Piston pins coded 17328 on engines new, overhauled in the field, and cylinder kits are being recalled. Replacement of the piston pin is mandatory prior to 50 hours.

Textron Lycoming SB No. 527B

235

10-96

SDR

Nose gear failed to extend due to broken landing gear electrical switch. When the emergency extension method was selected, the nose gear failed to extend due to a broken engine mount nose gear support.

FAA-GAAA

No. 219

320/360

9-96

SDR

Submitter reported having to tighten his main gear axle nuts twice in only 47 hours since new. He replaced the axle with a new designed part from Matco part 2A which eliminates the GM-31 spacer eliminating the wearing problem.

Verbal

320/360/
IV/ES

9-96

SB 525*

Fuel injected Textron Lycoming 320, 360, and 540 engines shipped between 7/18/95 and 8/14/96 may have manufacturing defects in the diaphragm fuel pumps that cause engine stoppage.

Textron Lycoming SB No. 525A

235/320/
360

8-96

SDR

Pitch trim nylon attach block was cracked in the corners. Submitter made new blocks out of aluminum.

LNN p. 289

320/360

8-96

SDR

The older hydraulic pumps shipped prior to 1990 require modification to include a back pressure circuit. If you have a part number with a "B" included, you are OK.

LNN p. 286

320/360

8-96

SDR

Avoid a common problem resulting in a lack of clearance between the main gear tire and the cockpit close out rib.

LNN p. 286

IV

7-96

SB29-0796

Recommended modification to the engine air filter bypass.

Neico

IV

7-96

SB28-0796*

Test procedure and modification required if fuel is leaking into the main spar close out.

Neico

320/360/
ES

7-96

SDR

Submitter reported that the new Lycoming supplied light weight starter failed to properly engage after only 38 hours TT. The starter was replaced with a SkyTec under the Lycoming warranty.

LNN p. 293

320/360

7-96

SDR

Submitter reported that the lower edge of the canopy flexed outward in cruise. A keeper was installed.

LNN p. 290

320/360

7-96

SDR

Submitter stated that pitot tubes with built in static sources don't work and suggests using the static source in the side of the fuselage as per the Lancair construction manual.

LNN p. 290

320/360

7-96

SDR

Submitter cautions about fiberglass and filler residue in the fuel tanks. Despite pre flight flushing two expensive fuel distributor overhauls were required to get rid of the residue.

LNN p. 289

320/360

7-96

SDR

The long bolt which keeps compression on the main gear donut assembly failed resulting in the main gear to not fully retract after takeoff. Submitter found that he had run the nut onto the unthreaded portion of the bolt and that is where the bolt broke.

Verbal

320

6-96

SDR

Submitter called attention to the proper method of attaching the lead bob weight to the idler arm (see construction manual 15-19). The weight installed on the wrong side of the arm may have limited elevator travel contributing to an accident and two fatalities. It was also recommended that the idler arm assembly be periodically checked for security and delaminations annually and the directions and materials used to construct the device be followed exactly.

Verbal

235/320/
360

6-96

AD96-09-10

Textron Lycoming replacement of oil pump sintered iron and aluminum impellers to prevent oil pump failures.

FAA

360

6-96

SDR

Submitter noted that the piano wire was working its way out of the several control surface hinges. Submitter suggests using an acceptable method to secure the pin in the hinge.

Verbal

320

6-96

SDR

GM-31 wheel spacer manufactured by Matco was worn making the axle nut cotter pin engagement unacceptable. The wheel play must be adjusted about every 25 hours due to the spacer wear. Submitter is replacing the entire axel assembly with a new part from Matco which eliminates the problem all together.

Verbal

IV/320/
360/235

6/96

SDR

Submitter's sealed lead acid immobilized electrolyte battery exploded in flight. The explosion was due to an overvoltage. The submitter states that all aircraft battery charging systems should have proven over voltage protection.

LNN p. 271

320/360

5/96

SDR

Submitter reported only having a 1/4" preload on the nose gear gas strut which was cured by reversing the attach bracket.

LNN p.260

IV

5/96

SDR

Submitter reports that the hydraulic power pack supplied with his IV kit was missing the emergency supply pickup tube.

Verbal

IV

5/96

SDR

Nose gear strut failure. Upon gear retraction the strut castered sideways. During extension the strut remained sideways causing the nose gear to collapse on landing. Submitter stated the probable cause was due to system not having self centering mechanism.

FAA GAAA

IV

1/96

SB27-0196*

Main gear box reinforcement

Neico

IV

12/94

CSB94-15

Crankcase stud inspection requirement that affects some 470, 520 and, 550 Teledyne Continental engines.

Teledyne

IV

3/94

SB94-3A

P/N 642917-2 induction hose detaching from the induction tube on some TSIO 520 and 550 Teledyne Continental engines.

Teledyne

320

3/96

SDR

Slight delamination at top of nose gear tunnel on each side of retract cylinder phenolic.

verbal

IV/360/
320/235

3/96

SDR

Should the aileron fill with water via the aileron trim motor or vent holes, it will be out of mass balance. Drain holes are required in addition to vent holes.

LNN p. 251

235/320/
360

3/96

SDR

GM-31 wheel spacers worn possibly due to axle nut being too loose.

LNN p. 251

IV

3/96

SDR

Fuel selector valve supplied in some of the older kits have an internal leak in excess of 1 quart per hour resulting in an on ground fuel transfer with the valve in the off position

verbal and
LNN p. 247

IV

3/96

SDR

A 10 gallon reduction in the wing fuel load is indication that the vent hole in the forward fuel bay is plugged.

verbal

IV

3/96

SDR

Fuel tank yellow vent line hose collapsed making it difficult to suck fuel out of the affected fuel tank.

verbal

235/320/
360

2/96

OA524

Textron Lycoming issued a mandatory service bulletin requiring the replacement of all sintered iron oil pump impellers within the next 25 hours, and all aluminum oil pump impellers at the next recommended overhaul not to exceed 2000 hours on 235, 290, 320, 360 and 540 engines. Contact your distributor for a listing of the affected engines with sintered and aluminum impellers.

Textron Lycoming

IVP

1-96

SDR

Top three screws of bracket 461-002 pulled through composite due to rounding of fuselage during pressurization.

verbal

IVP

1-96

SDR

Note the manual revision to the instrument panel to side fuselage attachment calling for a slider that allows for widening of the fuselage during pressurization.

verbal

IV

1-96

SDR

Aileron actuator arm (AL204-4) hole for the rod end bearing measured .195" but should be .187 m. Submitter felt the tolerance was out of limits and hadn't decided whether to shim, send for replacement, or go oversized.

verbal

320/360

12-95

SDR

Hydraulic reservoir crack/failure

LNN p 237

IV

12-95

SDR

Rick Buckley at Precise Flight reports that some builders have tried to install their speedbrakes backwards. Machined face should be aft.

LNN p 238

320/360

12-95

SDR

Allow for engine sag on the mounts but also take into account that with shimming, the engine will move forward.

LNN p. 240

320/360

12-95

SDR

Check wheel bearings for snugness.

LNN p. 241

320/360

11-95

SB26-1195

Push rod between flap and bellcrank. Inspect for freedom of travel, lack of bind and proper deflection. Recommended that the rod be replaced with .312 diameter if old style 1/4" rod installed.

Neico

IV

11-95

SDR

Submitter noted an oil leak on his new TSIO 550. The leak was traced to an oil drain that was installed and saftied by the factory. The oil drain was only finger tight. Submitter suggests checking oil drains for security on all new TSIO 550's.

Verbal

IV

10/95

SDR

Submitter cautions builders that aluminum fluid fittings should not be used on the turbo charger oil lines due to the intense heat.

Verbal

IV

10/95

SDR

Submitter noted that the Precise Flight speed brake spring bound on the aluminum at the bottom of the box. Submitter suggests that all Precise Flight speed brake installations be checked for binding.

Verbal

320/360

9/95

SDR

Submitter noted excessive main gear wheel bearing play and adjusted the axle nut on several occasions until the axle cotter pin no longer contacted the castellations on the axle nut. Further investigation revealed wearing of the axle spacer GM31 and of the axle nut GM32 both Matco products.

Verbal

320/360/
IV

9/95

SDR

Submitter noted a wopping 1/8 inch of side play in his nose wheel hub/bearing at 28 hours total time. Submitter suggests jacking each gear and checking the wheel bearings for proper play frequently after completing a new installation.

 

IV

8/95

SDR

Submitter had a complete throttle control failure in flight. Apparently the throttle body's throttle and mixture arm securing nut for the IO550 and TSIO550 comes from the factory loose with the idea that the builder will reposition the arms as desired. A check to determine that the securing nut is properly torqued is suggested.

Verbal

320/360

8/95

SDR

The forward hinged canopy frame bows outward 1/2 inch due to a low pressure area along the side of the fuselage causing the seal between the canopy and longeron to be ineffective. Submitter suggests attaching the two BID flange on the inside (Fast Build Manual 17-74 option 2) rather than the outside (option one and three) since this would prevent the canopy from bowing outward.

Verbal

IV/320/
360/235

8/95

SDR

Use extreme caution if using Mylar tape as gap seals. If the tape's leading edge lifts you may loose control of your aircraft. Submitter saw signs of this at Oshkosh on several aircraft.

Verbal

320/360

7/95

SDR

Nose gear binding due to inadequate distance between nose gear engine mount pick up pads.

LNN p 190

360

7/95

SDR

Inadequate pitch trim for slow flight through cruise. Submitter substituted longer and stronger trim centering springs

Verbal

320/360

7/95

SDR

Nose gear and gear door hinge hardware interference

LNN p 190

IV/320/
360

6/95

SDR

Hydraulic reservoir rupture. Submitter felt the 1/16" vent hole located in the male cap threads was either too small or blocked by the reservoir cap.

LNN p 189

IV

6/95

SDR

Horizontal Stabilizer delaminated due to internal pressure build up. Submitter felt the cause was a clogged vent hole.

Verbal

IV

4/95

SB25-495

Flap track attachment BID modification to prevent possible delamination.

Neico

320/360

2/95

OA-518A

Mandatory inspection of thermostatic bypass valves on all Lycoming engines for loose crimp nuts that can drop into the engine causing severe engine damage.

Textron Lycoming

IV

4/95

SDR

Injector fuel filter clogged with carbon fiber dust.

verbal

320/360

4/95

SDR

Fuel tank sealer pealed from wing skins in large sheets while doing a vacuum leak check. Submitter indicated that he used PRC420 sealer and Flame Master CS3204 primer and that they may be incompatable.

verbal

320/360

4/95

SDR

Gear position switch failure due to debris jammed between the microswitch tab and its case. Submitter made a housing for the microswitch.

LNN p 164

320/360

4/95

SDR

Matco brake locking. Submitter releived pedal casting interference with brake cylinder shaft and installed brass sleeves in the Nylaflow tubing ends.

LNN p 166

320/360

4/95

SDR

Elongation of the holes in the over center link tabs of the nose gear strut. Submitter modified the over center link with a rod end bearing.

LNN p 163

320/360

4/95

SDR

Hydraulic pump Solenoid failure in on position

LNN p 163

320/360

12/22/94

SDR

Main gear rat trap over center link spring failure

LNN p 147

320/360

12/14/94

SB24-1294

Matco Brake Plate Alignment/travel room resulting in greatly reduced braking power

Neico

235/320/
360

11/01/94

SDR

Seat pan interference with control stick at high positive G's resulting in apparent reverse elevator control. Submitter reinforced his seat pan.

verbal

IV/IV-P

10/12/94

SB23-1094

Nose gear door stiffner fastners. Replace front countersink rivets with AN525 washer head machine screws

Neico

IV/IV-P

10/04/94

SB22-1094

Flap Drive Cylinder attach bracket #FM162-01 inspect for crack

Neico

235/320

10/15/94

SDR

Shuttle valve installed backwards in Oildyne hydraulic power pack

LNN p 144?

235/320/
360

08/30/94

SDR

Gear actuator hydraulic cylinder internal leak

LNN p127

IV

08/25/94

SB21-894*

Hydraulic power pack reservoir attach screw

Neico

IV

08/20/94

SB20-894*

Fuel selector valves O-ring replacement

Neico

IV

08/14/94

SDR

Trim tab bell crank hole and servo pin diameter mismatch

LNN p119

320/360

07/01/94

SB19-94

Matco MC-5 master cylinders shipped between 5/19/93 and 6/30/94 with 7.5" length only. Replace with newer 7" style.

Neico..LNN p98

320/360

07/07/94

SB18-94*

Interference fit hole of RD7 rudder bracket

Neico

IV

04/07/94

SB17-94

1. Hand pump check valve location. 2. Landing gear solenoid switch lock. 3. Window installations. 4. Nose gear door control horns. 5. Nose gear retract cylinder.

Neico

235/320/
360

05/07/94

SDR

Brake locking/dragging problem with MATCO MC-1 and 3 shipped prior to 1994

LNN p97 and 98

235/320/
360

1/94

SB016-94

Check to insure that AN470AD rivets used for all push rod installations

Neico

360

03/14/94

SDR

Nose gear gas spring pressure inadequate to extend the nose gear. In service only 6 months.

verbal

360

03/14/94

SDR

Two Hydraulic power pack failures of the low pressure system. Suspect combination of hot climate in combination with use of A/C hydraulic fluid.

verbal

IV

01/23/94

SDR

Speed brake left wing interferance between cable and coiled spring resulting in possible fraying of cable

LNN p88

320/360

01/01/94

SDR

Elevator control horn modification to reduce stick throw and increase elevator stick pressure

LNN p66 / LM V8#5 / LM V8#6

200/235/
320/360/
IV

12/01/93

SDR

old style internally adjustable Vep gear pressure switch adjustment problems

LNN p58

320

09/30/93

SB015-93

stub wing attachment process

Neico

200/235/
320/360

09/00/93

SB014-93

Main Gear Overcenter Links

Neico

200/235/
320/360/ IV

09/19/93

SB013-93

Matco Brake Master Cylinders/Matco MC-3 cylinder shafts

Neico

320

04/01/93

SDR

Matco brake pad failure

LNN p26

320/IV

02/04/93

SB012-93

resin system pumps and mixing checks and cautions

Neico

IV

02/03/93

SB011-93

ply orientation for bulkhead panels

Neico

235/320

02/03/93

SDR #605

nut/bolt failure that holds preload on gear shock donuts resulting in jammed main gear

FAA BB

200/235/
320

01/14/93

SDR #601

rudder hinge bushing seperation (see SB010-92 for fix)

FAA BB

235/320

01/01/93

SDR

nose gear gas spring pressure loss resulting in nose gear emergency extension failure

LNN p11

200/235/
320

12/29/92

SB010-92*

rudder hinge attachment modification

Neico

235/320

12/05/92

SB009-92

Esco strut modification for increased shimmy dampening

Neico

IV

08/20/92

SB008-92

elevator control horn weldment control stop pads

Neico

320

08/20/92

SDR #555

prop spinner backing plate failure

FAA BB

200/235

06/29/92

SB007-92

GM20 casting service life limit, maint, and replacement

Neico

320

05/11/92

SDR #561

nose gear drag link part GM26 failure

FAA BB

320

03/08/92

SDR #537

nose gear drag link failure

FAA BB

235

02/04/92

SDR #530

GM20 casting failure

FAA BB

320

04/19/91

SB006-91

nose gear tunnel phenolic block location

Neico

320/IV

04/09/91

SB005-91

Shell DPL-862 & TETA mixing cautions

Neico

200/235/
320/IV

03/01/91

SB004-91

mixing and shelf life of Hysol 9339 adhesive

Neico

200/235/
320/IV

11/27/90

SB003-90

hydraulic hose BU03-04-NJ check for 37° flair

Neico

320

10/23/90

SB001-90*

spoked nosewheel replacement

Neico

235/320

10/19/90

SB002-90

fuel tank sealing method

Neico

320

09/01/90

SB30-8-90*

Esco nose gear leg threading seal

Neico

 

SB's

-------

Service Bulletins are issued by Neico only. An * indicates that the SB is mandatory like an AD.

OA

 

Owner Advisorys including mandatory service bulletins issued by manufacturers.

SDR's

-------

Amateur-Built Service Difficulty Reports can be and are issued by anyone. These reports are taken from either the FAA amateur-built safety data exchange bulletin board system (FAA BB) or reports submitted to the Lancair Network News (LNN) and the Lancair Mail (LM) and may be unreliable. To help you track down the detailed reports, SDR # refers to FAA BB record number, and LNN p# refers to the Lancair Network News page number. SDR's are often incomplete, and may result from improper maintenance or construction in some cases. But SDR's are informational and warrant monitoring. SDR's could eventually result in SB's from Neico.

 

For further details on any of the above information determine the Source of the SB or SDR. If it is "Neico", Neico Aviation sent you the complete report or it has already been incorporated into your builder's manual. If it is "LNN" refer to the Lancair Network News by page number for the complete report; if it is LM refer to the "Lancair Mail", and if it is "FAA BB" call the computer buletin board at (800) 426-3814 and access the computer record number. See Service Bulletin services for a complete listing of engine and DOT FAA AD's. The above listing is only a sampling of AD's that pertain to all Lancairs.

 

If you encounter a safety problem or have an incident, please tell the rest of us via the Lancair Network News and the Bulletin board. By passing on your experiences, the rest of us can be a little safer. We attempt to provide a complete list of SB's issued by Neico. Engine and accessory bulletins are generally not listed due to the wide range of builder options.

 

 

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