# Lycoming TIO-540-A2B

- Type: Engine model (FAA registry)
- Registry code: 41969
- Manufacturer (registry): LYCOMING
- Model: TIO-540-A2B
- Engine type: Reciprocating
- Power: 310 hp
- Data sheet: [TCDS E14EA](https://openairdocs.org/tcds/E14EA) (OpenAirDocs)
- Holder: Lycoming Engines
- Installed in: 4 registered aircraft
- Page: https://openairdocs.org/engine/lycoming-tio-540-a2b

Model codes come from the FAA registry's reference file.

## ADs that may apply (OpenAirDocs)

Matched to this engine model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

- [AD 2026-04-11](https://openairdocs.org/ad/2026-04-11): Engine (Reciprocating) · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 605 more. Effective Apr 8, 2026
- [AD 2022-16-03](https://openairdocs.org/ad/2022-16-03): Engine (RECIPROCATING) · Continental Aerospace Technologies GTSIO-520-C, GTSIO-520-D, GTSIO-520-F and 236 more. Effective Aug 15, 2022
- [AD 2015-19-07](https://openairdocs.org/ad/2015-19-07): Fuel injector fuel lines · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1B and 187 more. Effective Nov 3, 2015
- [AD 2012-19-01](https://openairdocs.org/ad/2012-19-01): Crankshafts · Lycoming Engines AEIO-360-A1A, AEIO-360-A1B, AEIO-360-A1B6 and 321 more. Effective Oct 24, 2012
- [AD 71-13-01 R1](https://openairdocs.org/ad/71-13-01-R1): Rescinding an airworthiness directive · Lycoming Engines TIO-540-A1A, TIO-540-A1B, TIO-540-A1C and 13 more. Effective Mar 8, 2012
- [AD 2012-03-06](https://openairdocs.org/ad/2012-03-06): Fuel servo diaphragm · Continental Motors 6-260-A, 6-285-A, 6-285-B and 482 more. Effective Feb 24, 2012
- [AD 2010-07-08](https://openairdocs.org/ad/2010-07-08): Turbochargers · Kelly Aerospace Energy Systems HIO-360-E1AD, HIO-360-E1BD, HIO-360-F1AD and 137 more. Effective Apr 19, 2010
- [AD 2009-02-03](https://openairdocs.org/ad/2009-02-03): Fuel injection servos · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 261 more. Effective Feb 9, 2009
- [AD 2005-12-06](https://openairdocs.org/ad/2005-12-06): Riveted-impulse coupling assemblies and snap-ring coupling assemblies · Lycoming Engines AEIO-540-D4A5, AEIO-540-D4B5, AEIO-540-D4C5 and 154 more. Effective Jul 19, 2005
- [AD 2004-10-14](https://openairdocs.org/ad/2004-10-14): Crankshaft gear · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 642 more. Effective Jun 25, 2004
- [AD 2004-05-24](https://openairdocs.org/ad/2004-05-24): Zinc-plated Crankshaft Gear Retaining Bolts · Lycoming Engines AEIO-540-D4A5, AEIO-540-D4B5, AEIO-540-D4C5 and 161 more. Effective Mar 30, 2004
- [AD 2003-14-03](https://openairdocs.org/ad/2003-14-03): Rotary fuel pumps · Lycoming Engines AEIO-540-D4A5, AEIO-540-D4B5, AEIO-540-D4C5 and 262 more. Effective Aug 14, 2003
- [AD 2002-19-03](https://openairdocs.org/ad/2002-19-03): Crankshaft · Lycoming Engines IO-540-A1A5, IO-540-AA1A5, IO-540-AA1B5 and 81 more. Effective Sep 20, 2002
- [AD 98-17-11](https://openairdocs.org/ad/98-17-11): Crankshafts · Continental Motors A-65-3, A-65-8, A75-8 and 90 more. Effective Oct 19, 1998
- [AD 97-15-11](https://openairdocs.org/ad/97-15-11): Cylinder kits · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 538 more. Effective Aug 12, 1997
- [AD 95-07-01](https://openairdocs.org/ad/95-07-01): Connecting Rod Bolt · Lycoming Engines AEIO-360-A1E, AEIO-360-B1G6, AEIO-360-H1A and 177 more. Effective Apr 12, 1995
- [AD 92-12-05](https://openairdocs.org/ad/92-12-05): Piston Pins · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 532 more. Effective Jul 10, 1992
- [AD 91-08-07](https://openairdocs.org/ad/91-08-07): Fuel Pump · Lycoming Engines TIO-360-A1A, TIO-360-A1B, TIO-360-A3B6 and 51 more. Effective May 6, 1991
- [AD 79-04-05](https://openairdocs.org/ad/79-04-05): Regulator Diaphragm Stem Assembly · Lycoming Engines AEIO-320-D1B, AEIO-320-E1A, AEIO-320-E1B and 215 more. Effective Sep 26, 1979
- [AD 78-23-10](https://openairdocs.org/ad/78-23-10): Center Body Bellows Seal Assembly · Lycoming Engines AEIO-320-D1B, AEIO-320-E1A, AEIO-320-E1B and 218 more. Effective Nov 7, 1978
- [AD 73-23-01](https://openairdocs.org/ad/73-23-01): Piston Pin Assembly · Lycoming Engines AIO-360-A1A, AIO-360-A1B, AIO-360-A2A and 215 more. Effective Jan 13, 1977
- [AD 75-09-15](https://openairdocs.org/ad/75-09-15): Fuel Starvation To The Engine · Lycoming Engines AIO-320-A1A, AIO-320-A1B, AIO-320-A2A and 130 more. Effective Apr 30, 1975
- [AD 73-10-02](https://openairdocs.org/ad/73-10-02): Bendix Fuel Injectors · Bendix Fuel Injectors, AIO-320-A1A, AIO-320-A1B and 88 more. Effective May 16, 1973

Historical (superseded or no longer in force):

- [AD 2024-21-02](https://openairdocs.org/ad/2024-21-02) (historical): Engine (Reciprocating) · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 548 more. Effective Dec 5, 2024
- [AD 2011-26-04](https://openairdocs.org/ad/2011-26-04) (historical): Externally mounted fuel injector fuel lines · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1B and 186 more. Effective Jan 25, 2012
- [AD 2011-15-10](https://openairdocs.org/ad/2011-15-10) (historical): Fuel servos · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 256 more. Effective Aug 16, 2011
- [AD 2008-14-07](https://openairdocs.org/ad/2008-14-07) (historical): Externally mounted fuel injector fuel lines · Textron Lycoming, AVCO AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1B and 185 more. Effective Aug 14, 2008
- [AD 2008-08-14](https://openairdocs.org/ad/2008-08-14) (historical): Fuel injection servo plugs · Superior Air Parts AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 242 more. Effective Apr 29, 2008
- [AD 2008-06-51](https://openairdocs.org/ad/2008-06-51) (historical): Fuel injection servo plugs · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 235 more
- [AD 2005-26-10](https://openairdocs.org/ad/2005-26-10) (historical): ECi cylinder assemblies. · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 413 more. Effective Jan 31, 2006
- [AD 2002-26-01](https://openairdocs.org/ad/2002-26-01) (historical): Fuel injector fuel lines · Textron Lycoming, AVCO IGO-480-A1B6, IGO-540-B1A, IGO-540-B1C and 178 more. Effective Jan 31, 2003
- [AD 2002-23-06](https://openairdocs.org/ad/2002-23-06) (historical): Crankshaft gear retaining bolts · Textron Lycoming, AVCO AEIO-540, AEIO-540-D4A5, AEIO-540-D4B5 and 46 more. Effective Nov 19, 2002
- [AD 2002-20-51](https://openairdocs.org/ad/2002-20-51) (historical): Crankshaft gear retaining bolts · Textron Lycoming, AVCO AEIO-540, IO-540 Series (all), LTIO-540-F2BD and 39 more
- [AD 2002-17-53](https://openairdocs.org/ad/2002-17-53) (historical): Crankshaft · Lycoming Engines LTIO-540-F2BD, LTIO-540-J2B, LTIO-540-J2BD and 36 more
- [AD 2002-04-51](https://openairdocs.org/ad/2002-04-51) (historical): Crankshaft · Lycoming Engines LTIO-540-F2BD, LTIO-540-J2B, LTIO-540-J2BD and 8 more
- [AD 98-18-12](https://openairdocs.org/ad/98-18-12) (historical): Fuel Pump · Textron Lycoming, AVCO AEIO-540-D4A5, AEIO-540-D4B5, AEIO-540-D4C5 and 249 more. Effective Sep 28, 1998
- [AD 71-13-01](https://openairdocs.org/ad/71-13-01) (historical): Fuel Injector Manifold To Nozzle Tube Assemblies · Lycoming Engines TIO-540-A1A, TIO-540-A1B, TIO-540-A1C and 3 more. Effective Jun 22, 1971

## Information bulletins (advisory) (6)

- [SAIB NE-19-08](https://openairdocs.org/saib/NE-19-08): Reciprocating Engine Cylinder Section - Lycoming Engines Parallel Valve Cylinders. Issued May 2, 2019
- [SAIB NE-08-32R1](https://openairdocs.org/saib/NE-08-32R1): Propeller Governor  Idler Gear Shaft Set Screw. Issued May 13, 2016
- [SAIB NE-14-13](https://openairdocs.org/saib/NE-14-13): Reciprocating Engine - Cylinder Mounting Studs. Issued Mar 24, 2014
- [SAIB NE-09-04](https://openairdocs.org/saib/NE-09-04): Fuel Control/Reciprocating Engines. Issued Jan 10, 2009
- [SAIB NE-06-32R1](https://openairdocs.org/saib/NE-06-32R1): Reciprocating Engine - Crankshaft. Issued Sep 10, 2008
- [SAIB NE-08-32](https://openairdocs.org/saib/NE-08-32) (historical): Propeller Governor Set Screw. Issued Jul 3, 2008

## Registered aircraft (4)

- [N533YA](https://openairdocs.org/aircraft/N533YA): [Bb Aero Works Ltd](https://openairdocs.org/faa-owner/BB%20AERO%20WORKS%20LTD), [Whitehouse, OH](https://openairdocs.org/faa-place/OH/Whitehouse), built 1968, S/N 31-157
- [N54CL](https://openairdocs.org/aircraft/N54CL): [Air Transport Resources](https://openairdocs.org/faa-owner/AIR%20TRANSPORT%20RESOURCES), [Naperville, IL](https://openairdocs.org/faa-place/IL/Naperville), built 1970, S/N 31-652
- [N70Z](https://openairdocs.org/aircraft/N70Z): [Rusyniak Anthony J](https://openairdocs.org/faa-owner/RUSYNIAK%20ANTHONY%20J), [Syracuse, NY](https://openairdocs.org/faa-place/NY/Syracuse), built 1968, S/N 31-357
- [N79AK](https://openairdocs.org/aircraft/N79AK): [Global Aircraft Trust Inc](https://openairdocs.org/faa-owner/GLOBAL%20AIRCRAFT%20TRUST%20INC), [Cheyenne, WY](https://openairdocs.org/faa-place/WY/Cheyenne), built 1969, S/N 31-472

## NTSB investigations

None matched to aircraft with this engine model.

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Incident 20220904015469I](https://openairdocs.org/incident/20220904015469I), Sep 4, 2022: Piper PA-31-310 (N420WW), Miami, FL, Minor damage. At 1250 local time, tower was notified of an aircraft inbound for landing with the right engine shutdown due to loss of oil pressure. Upon approach for…

## Service difficulty reports (181, newest 50)

As reported by operators and repair stations, by the model named in the report.

- [SDR 5JGA2018072310001](https://openairdocs.org/sdr/5JGA2018072310001), Jul 23, 2018: FUEL LINE. FAILED. NR 2 CYLINDER FUEL INJECTOR LINE FAILED.
- [SDR CA151222005](https://openairdocs.org/sdr/CA151222005), Dec 21, 2015: GEAR. BROKEN. (CAN) ENGINE SURGED IN FLIGHT, CONTINUED TO DESTINATION. BOTH GEARS IN LT ENGINE, LT MAGNETO FOUND MISSING AND BROKEN TEETH. DISTRIBUTOR BLOCK AND GEAR ASSY PAR
- [SDR CA141015003](https://openairdocs.org/sdr/CA141015003), Oct 4, 2014: MOTOR. MALFUNCTIONED. (CAN) MOTOR WAS IDENTIFIED AND CERTIFIED AS PN 1202-00-1 SN 4556, , FAILED SHORTLY AFTER INSTALLATION. MOTOR MAY HAVE BEEN SETUP AT OVERHAUL AS A 12 VOLT UNIT P
- [SDR CA140811006](https://openairdocs.org/sdr/CA140811006), Aug 1, 2014: TORQUE LINK. BROKEN. (CAN) TOP REAR ATTACH POINT ON TORQUE LINK BROKE ON LANDING.
- [SDR CA140703003](https://openairdocs.org/sdr/CA140703003), Jul 1, 2014: MAGNETO. MALFUNCTIONED. (CAN) ENGINE RUN-UP PRIOR TO FLIGHT WAS NORMAL. IN CLIMBOUT, LT ENGINE BEGAN SURGING. PILOT RETURNED TO BASE. ENGINE RUN-UP CARRIED OUT BY AMO INITIALLY SHOWED 
- [SDR CA140124027](https://openairdocs.org/sdr/CA140124027), Jan 23, 2014: STUD. BROKEN. (CAN) THE NR 3 CYLINDER HOLD DOWN STUD AT 8 O`CLOCK POSITION WAS OBSERVED SHEARED OF AT THE BASE OF THE NUT DURING ROUTINE INSPECTION. ASSUMED MFG. PART REPLACE
- [SDR CA130528006](https://openairdocs.org/sdr/CA130528006), May 16, 2013: SPAR. CRACKED. (CAN) SEVERAL SMALL CRACKS (<1/2") AND ONE LARGE (1.5" APPROX) CRACK FOUND IN MAIN SPAR WEB. CRACKS ORIGINATE FROM RIVETS IN SPAR WEB AND SOME EXTEND TO BEHIND 
- [SDR CA130311022](https://openairdocs.org/sdr/CA130311022), Mar 7, 2013: DOWNLOCK SWITCH. UNKNOWN. (CAN) ON SELECTING GEAR DOWN FOR LANDING, LT MAIN GEAR DOWN SAFE GREEN LIGHT DID NOT ILLUMINATE. CONFIRMED LAMP OK. CYCLED GEAR, SAME RESULT. ON LANDING, LIGHT 
- [SDR CA130108003](https://openairdocs.org/sdr/CA130108003), Jan 5, 2013: BOLT. SHEARED. (CAN) LEFT MAIN GEAR SHIMMY FELT WHILE TAXIING, ACFT RETURNED TO RAMP AND FOUND THE LOWER BOLT ON TORQUE LINK ATTACH SHEARED, NO OTHER DAMAGE FOUND, GEAR INSPEC
- [SDR CA121211009](https://openairdocs.org/sdr/CA121211009), Dec 4, 2012: CONTROL CABLE. FRAYED. (CAN) FWD ELEVATOR TRIM CABLE FRAYED SEVERAL PLACES AT TRIM SERVO PULLEY.
- [SDR CA120719008](https://openairdocs.org/sdr/CA120719008), Jun 21, 2012: ROD END. FAILED. (CAN) NLG COLLAPSED DURING ROLLOUT AFTER LANDING. NO INDICATION OF PROBLEM UNTIL AFTER TOUCHDOWN. ROD ASSEMBLY, LANDING GEAR LOCK, NOSE, PN 41949-00, WAS FOUND 
- [SDR CA120306004](https://openairdocs.org/sdr/CA120306004), Feb 25, 2012: LINKAGE. BROKEN. (CAN) THE LINKAGE BETWEEN THE WASTE GATE AND THE WASTE GATE CONTROLLER BROKE AT THE CONTROLLER END, ON TAKEOFF, CAUSING AN OVERBOOST IN MANIFOLD PREASURE.
- [SDR CTYA2011FA0000686](https://openairdocs.org/sdr/CTYA2011FA0000686), Oct 16, 2011: LINE. LOOSE. ON DECENT PILOT NOTED LOW FUEL PRESSURE, SELECTED BOOST PUMP ON, FUEL QUANTITY INDICATOR LOW ENGINE CEASED TO RUN, FEATHERED AND SECURED ENGINE.
- [SDR CA110818005](https://openairdocs.org/sdr/CA110818005), Aug 15, 2011: CYLINDER. FAILED. (CAN) AT APPROX 2115 UTC ON 15 AUG 11, IN CRUISE FLIGHT, ENROUTE, EXPERIENCED DROP IN MANIFOLD PRESSURE ON LT ENGINE, FOLLOWED BY VIBRATION. PILOT FEATHERED PRO
- [SDR CA110606016](https://openairdocs.org/sdr/CA110606016), Jun 1, 2011: BUSHING. WORN. RT ENGINE, CAN`T RESTART ENGINE ON GROUND. LT MAGNETO REMOVED, INSPECTED AND FOUND BUSHING WORN OUT ON GEAR. SENT TO O/H.
- [SDR CA101007010](https://openairdocs.org/sdr/CA101007010), Oct 4, 2010: MAGNETO. INTERMITTENT. INTERMITTENT IGNITION FAILURE AT CRUISE POWER SETTING, CAUSING PARTIAL LOSS OF POWER AND OVERHEAT.
- [SDR CA100708003](https://openairdocs.org/sdr/CA100708003), Jul 5, 2010: UPLOCK HOOK. OUT OF ADJUST. AIRCRAFT RETURNED TO HANGER AFTER HAVING THE IN TRANSIT LIGHT ON WHEN THE GEAR WAS SELECTED UP. AIRCRAFT WAS JACKED AND GEAR SWING CARRIED OUT IAW TABLE VII-1 O
- [SDR CA100617008](https://openairdocs.org/sdr/CA100617008), Jun 11, 2010: TRUNNION. CRACKED. THE NLG OLEO HAD A SMALL FLUID LEAK THUS THE OLEO WAS GETTING NEW O-RINGS INSTALLED AND BEING SERVICED. DURING THE PROCESS, A CRACK WAS NOTICED IN THE PAINT NEA
- [SDR CA100127003](https://openairdocs.org/sdr/CA100127003), Jan 24, 2010: SHAFT. BROKEN. (CAN) GROUND TEST AFTER FLIGHT, LANDING GEAR HANDLE DIDN`T RETURN TO NEUTRAL AFTER TEST. PUMP REMOVED AND FOUND DRIVING SHAFT BROKEN, PUMP REPLACED & CHECK OK. 
- [SDR CA091223012](https://openairdocs.org/sdr/CA091223012), Dec 21, 2009: KEY. BROKEN. (CAN) GROUND TEST AFTER FLY, LANDING GEAR HANDLE DIDN’T RETURN TO NEUTRAL AFTER TEST. MAINTENANCE ACTION, HYDRAULIC LEVEL CHECK OK, HYDRAULIC PUMP REMOVED AND F
- [SDR CA090317003](https://openairdocs.org/sdr/CA090317003), Mar 13, 2009: LINE. FRACTURED. (CAN) FUEL INJECTOR LINE BETWEEN MANIFOLD AND NR 1 CYLINDER FAILED AT BEND ABOVE CYLINDER, CAUSING PARTIAL LOSS OF POWER. RESULTING VIBRATION LIKELY CAUSED SUBS
- [SDR CA071114001](https://openairdocs.org/sdr/CA071114001), Oct 22, 2007: HOUSING. FAILED. (CAN) MOTOR ATTACH BOLT PULLING OUT OF HOUSING. NOT AN INFLIGHT SAFETY CONCERN. (TC NR 20071114001)
- [SDR CA070503005](https://openairdocs.org/sdr/CA070503005), Apr 13, 2007: DRIVE GEAR. FAILED. (CAN) LT ENGINE FAILED IN CRUISE FLIGHT. AIRCRAFT RETURNED TO BASE. ENGINE REMOVED AND REPLACED. THE ACCESSORY CASE WAS REMOVED AND FOUND THAT THE CRANKSHAFT DR
- [SDR CA070126009](https://openairdocs.org/sdr/CA070126009), Jan 18, 2007: BOLT. BROKEN. (CAN) WHILE TAXIING, THE UPPER TORQUE LINK BOLT BROKE WHICH ALLOWED THE LT MAIN WHEEL TO TURN SIDEWAYS. (TC NR 20070126009)
- [SDR CA070118004](https://openairdocs.org/sdr/CA070118004), Jan 12, 2007: PLATE. CRACKED. (CAN) PROPELLER RECEIVED FROM CUSTOMER FOR ROUTINE OVERHAUL. PROPELLER DISMANTLED, PARTS NDT INSPECTED AND CRACK FOUND. NO AD`S OR BULLETIN`S ON THAT PART. (TC 
- [SDR CA060726005](https://openairdocs.org/sdr/CA060726005), Jul 24, 2006: OIL FILTER. LEAKING. (CAN) DURING POST RUN UP INSPECTION OF REGULAR INSPECTION APPROXIMATE ONE FLUID OZ OF OIL WAS NOTED LEAKING FROM THE NEWLY INSTALLED OIL FILTER. IT IS SUSPECTED
- [SDR 2006FA0000391](https://openairdocs.org/sdr/2006FA0000391), Mar 29, 2006: BRAKE DISC. CRACKED. FOUND CRACK IN BRAKE DISC ON OUTER EDGE. CRACK STARTED ON THE (P) IN PARKER FROM THE STAMPED NAME, MODEL, DATE, AND SN. WHEN STAMPED COULD HAVE CAUSED A STRESS 
- [SDR AU510001879](https://openairdocs.org/sdr/AU510001879), Dec 12, 2005: ROD END. BROKEN. LT MAIN LANDING GEAR RETRACTION ACTUATOR ROD END BROKEN. FURTHER INVESTIGATION OF THE NOSE LANDING GEAR AND RT MAIN LANDING GEAR ACTUATOR ROD ENDS FOUND SLIGHT 
- [SDR CA051130011](https://openairdocs.org/sdr/CA051130011), Nov 25, 2005: DRIVE ASSY. SHEARED. IN CRUISE, WHEN LT ENGINE LOST POWER. CREW RETARDED THROTTLE AND CALLED ATC. DURING THIS TIME, DISCOVERED NO FUEL PRESSURE INDICATED ON LT ENGINE AND SELECTED B
- [SDR CA060328003](https://openairdocs.org/sdr/CA060328003), Oct 15, 2005: SKIN. CORRODED. ON DE-ICER BOOT REPLACEMENT DUE TO WEAR AND CONDITION FOUND LT WING AND LT HORIZONTAL STAB LEADING EDGE SKINS CORRODED. THERE WERE HOLES THROUGH THE METAL. SKIN
- [SDR CA051005012](https://openairdocs.org/sdr/CA051005012), Oct 4, 2005: CYLINDER. CRACKED. (CAN) LT ENGINE SPRUNG HUGE OIL LEAK, WAS SHUTDOWN IN FLIGHT. ENGINE FEATHERED. A/C WAS EN-ROUTE. A/C MAINTAINED ALTITUDE, CONTINUED AND LANDED SAFELY. LT ENGIN
- [SDR CA050408011](https://openairdocs.org/sdr/CA050408011), Apr 3, 2005: MAGNETO. BURNED. (CAN) RT ENGINE PARTIAL FAILURE ON CLIMB-OUT. RPM, MP, FF, FP EXCESSIVE DROPS. TROUBLE SHOOTING FOUND THAT LT MAGNETO FAILED. NEW MAGNETO INSTALLED. A/C TEST FL
- [SDR CA050105004](https://openairdocs.org/sdr/CA050105004), Dec 15, 2004: ENGINE. FAILED. (CAN) AFTER TAKEOFF THE LT ENGINE ENCOUNTERED RPM FLUCTUATIONS, THE AIRCRAFT RETURNED TO THE AIRPORT. AFTER SOME DISCUSSION WITH THE MECHANICS, THE PILOTS DRAIN
- [SDR CA040831008](https://openairdocs.org/sdr/CA040831008), Aug 20, 2004: BOLT. SEIZED. (CAN) WHEN THE PILOT SELECTED GEAR DOWN, THE RT GEAR LIGHT DID NOT ILLUMINATE.AFTER NUMEROUS RETRACTIONS AND EXTENSIONS NEAR THE AIRPORT, THE LIGHT NEVER CAME O
- [SDR CA040720006](https://openairdocs.org/sdr/CA040720006), Jul 12, 2004: SCREW. SEPARATED. THESE TWO BOLTS HOLD THE FUEL PUMP IDLER GEAR SHAFT TO THE ACCESSORY HOUSING. FAILURE OF THE BOLTS ALLOWED THE IDLER GEAR AND SHAFT TO DROP TO THE BOTTOM OF THE
- [SDR 2004F00103](https://openairdocs.org/sdr/2004F00103), Apr 8, 2004: DOWNLOCK SWITCH. INOPERATIVE. ON A PART 91 FLIGHT THE GEAR DID NOT GET A LT DOWN LIGHT AND THE GEAR SELECTOR DID NOT COME BACK TO CENTER. AFTER A SAFE LANDING FOUND THE SWITCH NOT OPENING AL
- [SDR CA040308010](https://openairdocs.org/sdr/CA040308010), Feb 21, 2004: TRIM SYSTEM. LACK OF LUBE. (CAN) PILOT REPORTED ELEVATOR TRIM JAMMED FULL FORWARD AND COULD NOT TRIM NOSE UP. ELEVATOR TRIM JACK FOUND NOT LUBRICATED. SHAFT LUBRICATED, SYSTEM FUNCTIONS N
- [SDR CA040219006](https://openairdocs.org/sdr/CA040219006), Feb 18, 2004: AXLE. BROKEN. (CAN) PILOT WAS TAXIING OUT FOR TAKEOFF WHEN THE AXLE BROKE. VIBRATION AND NOISE WAS HEARD. TAXIED BACK AND DISCOVERED THE MAIN WHEEL HAD TILTED OVER AND WAS RU
- [SDR CA040123008](https://openairdocs.org/sdr/CA040123008), Jan 20, 2004: BOLT. CORRODED. (CAN) THE AIRCRAFT WAS ON APPROACH WHEN THE CREW COULD NOT GET A DOWN AND LOCKED (GREEN) INDICATION ON THE RT MAIN GEAR. THE AIRCRAFT FLEW LOCALLY AND AFTER SEV
- [SDR AUS20031257](https://openairdocs.org/sdr/AUS20031257), Dec 9, 2003: ARM. BROKEN. (AUS) LT MAIN LANDING GEAR RETRACTION ARM BROKEN. ASSOCIATED FORK AND ROD END BENT. DAMAGE ALSO TO DOWNLOCK HOOK AND ROD END ASSEMBLY. SUSPECT DOWNLOCK HOOK FAI
- [SDR CA040106005](https://openairdocs.org/sdr/CA040106005), Dec 9, 2003: DOWNLOCK. INOPERATIVE. (CAN) AIRCRAFT WAS PREPARING TO LAND, PILOT SELECTED GEAR DOWN, ONLY THE NOSE AND RT GEAR HAD A LOCK INDICATION, UNSAFE GEAR INDICATION.
- [SDR CA031215001](https://openairdocs.org/sdr/CA031215001), Oct 29, 2003: COOLING JET. SEPARATED. (CAN) PISTON COOLING JET BACKED OUT OF HOLE. BOUNCED AROUND INSIDE OF ENGINE BEFORE THE CRANKSHAFT PUSHED IT THROUGH THE TOP OF THE CASE
- [SDR CA030924005](https://openairdocs.org/sdr/CA030924005), Sep 19, 2003: STUD. BROKEN. (CAN) LT ENGINE CYLINDER NR 5 CYLINDER BASE STUDS SHEARED OFF IN CASE. STUDS APPEAR TO HAVE BEEN CRACKED INSIDE CASE AREA. POSSIBLY FROM OVER TORQUEING.
- [SDR CA030730001](https://openairdocs.org/sdr/CA030730001), Jul 25, 2003: FORK. CRACKED. (CAN) WHILE INSPECTING BRAKE PADS A CRACK WAS NOTICED ON THE RT MAIN LEG CASTING AT THE AXEL RADIUS. FURTHER INSPECTION NOTED A 1.5 INCH CRACK IN THE RT LEG AND
- [SDR CA030606003](https://openairdocs.org/sdr/CA030606003), May 30, 2003: CABLE. JAMMED. (CAN) AUTO PILOT PITCH SERVO BRIDLE CABLE TO ELEVATOR MAIN CONTROL CABLE CLAMPS ERRONEOUSLY INSTALLED CAUSING PITCH CONTROL JAMMING AT FULL ELEVATOR UP EXTENSIO
- [SDR CA030606001](https://openairdocs.org/sdr/CA030606001), May 29, 2003: BOLT. FAILED. (CAN) DURING LAST THREE PROPELLER OVERHAULS THESE BOLTS ARE REPLACED WITH NEW AS REQUIRED. THE LAST TWO INSTALLS WERE NOT IN COMPLIANCE WITH SL 508. THESE WERE 
- [SDR CA030606002](https://openairdocs.org/sdr/CA030606002), May 29, 2003: CLAMP. JAMMED. (CAN) AUTO PILOT BRIDLE CABLE CLAMP (PITCH) JAMS AGAINST EACH OTHER AT OR NEAR FULL UP (NOSE UP) CONTROL MOVEMENT. THIS IS A RECURRING PROBLEM. THIS HAS ALSO HA
- [SDR CA030606008](https://openairdocs.org/sdr/CA030606008), May 27, 2003: CRANKSHAFT. FAILED. (CAN) COUNTERWEIGHT BLADE BUSHINGS AND BORE WORN (LOOSE) BEYOND REPAIRABLE LIMITS. PROP GOVERNOR GEAR P/N 70389 HAD FAILED.
- [SDR CA030604006](https://openairdocs.org/sdr/CA030604006), May 22, 2003: BLADE. CORRODED. (CAN) PROPELLER RECEIVED ON 22 MAY 2003, MODEL HC-E2YK-2B/FC847504 REMOVED FOR INSPECTION DUE TO EXCESSIVE ROTATIONAL BLADE MOVEMENT. A DECISION WAS MADE TO OVE
- [SDR CA030501009](https://openairdocs.org/sdr/CA030501009), May 1, 2003: DRIVE SHAFT. CRACKED. (CAN) RT FLAP FLEX CABLE WAS FOUND TO HAVE A CRACK ON THE SLINED SHAFT FROM THE PIN HOLE TO THE END OF THE DRIVE. THIS WAS DISCOVERED WHEN AD 82-27-13 WAS CARRI

All 181: https://openairdocs.org/engine/lycoming-tio-540-a2b/reports.md

## STCs that may be installed (OpenAirDocs) (33)

Approved for this engine model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has.

- [STC SE00825WI](https://openairdocs.org/stc/SE00825WI): Installation of Specialty Products Spin-on oil filter on Lycoming Engines. B & C Specialty Products Inc
- [STC SE04349CH](https://openairdocs.org/stc/SE04349CH): Installation of SureFly electronic ignition. SureFly Partners Ltd
- [STC SE01954SE](https://openairdocs.org/stc/SE01954SE): Installation of engine crankcase seal. Ly-Con Rebuilding Company
- [STC SE02352CH](https://openairdocs.org/stc/SE02352CH): Installation of Challenger cleanable oil filter assembly. Challenger Aviation Products Inc
- [STC SE00939WI](https://openairdocs.org/stc/SE00939WI): Installation of B&C Specialty Products Model BC 315-( ) Starter on Lycoming engines. B & C Specialty Products Inc
- [STC SE2667CE](https://openairdocs.org/stc/SE2667CE): Installation of B&C Specialty Products lightweight (10.2 pounds) engine starter PN BC315-100-2(12 volt) or PN BC315-100-4 (24 volt). B & C Specialty Products Inc
- [STC SE03309CH](https://openairdocs.org/stc/SE03309CH): Installation of Engine Preheat Kit, p/n TSP6CYL-2927-115 for 115 volt application. Hartzell Propeller Inc
- [STC SE01436LA](https://openairdocs.org/stc/SE01436LA): Installation of Firewall Forward Technologies LLC modified camshaft. Centri-lube Technologies LLC
- [STC SE04577CH](https://openairdocs.org/stc/SE04577CH): Install an electronic engine ignition system. Electroair Acquisition Corp
- [STC SE01966WI](https://openairdocs.org/stc/SE01966WI): Use of GAMI G100UL High Octane Unleaded Avgas in spark ignition piston aircraft engines. General Aviation Modifications Inc
- [STC SE8628SW](https://openairdocs.org/stc/SE8628SW): Installation of oil nozzles for lubrication of cam and filters. Cygnet Aerospace Corp
- [STC SE09445SC](https://openairdocs.org/stc/SE09445SC): Installation of fuel injector nozzles. General Aviation Modifications Inc. Lists TIO-540 Series
- [STC SE7503SW](https://openairdocs.org/stc/SE7503SW): Installation of any or all parts listed on Airmotive Engineering Drawing List No. 852-1, Rev. 1, dated 10/4/88, or later FAA approved revision. Continental Motors, Inc. Lists TIO-540 Series
- [STC SE7668SW](https://openairdocs.org/stc/SE7668SW): Installation of parts listed on Drawing List 8810-3, Rev 6. Continental Motors, Inc. Lists TIO-540 Series
- [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings. Continental Motors, Inc. Lists TIO-540 Series
- [STC SE00226NY](https://openairdocs.org/stc/SE00226NY): Replacement of Lycoming starter with SKY-TEC 24-volt starter Models 149-24HT and 122-24HT. Approval limited to 24-volt DC source available to the starter. Hartzell Engine Technologies, LLC
- [STC SE3329NM](https://openairdocs.org/stc/SE3329NM): Lycoming valve cover gasket. Real Gaskets Tennessee
- [STC SE02436AT](https://openairdocs.org/stc/SE02436AT): Installation of 200F series fuel pump assembly. Kelly Aerospace Energy Systems LLC
- [STC SE02555AT](https://openairdocs.org/stc/SE02555AT): Consolidated Fuel Systems 201F series fuel pump assembly on various Textron Lycoming engine models. Kelly Aerospace Energy Systems LLC
- [STC SE445GL](https://openairdocs.org/stc/SE445GL): Incorporation of a fuel flow transducer. Shadin Avionics
- [STC SE01930NY](https://openairdocs.org/stc/SE01930NY): Installation of Casper Labs 90 degree oil filter housing adapter. Casper Labs Inc
- [STC SE1779NM](https://openairdocs.org/stc/SE1779NM): Installation of Precise Flight, Inc. Standby Vacuum System SVS III. Precise Flight Inc
- [STC SE5743NM](https://openairdocs.org/stc/SE5743NM): Intallation of adapter for externally mounted oil filter. Aviation Development Corporation
- [STC SE3177NM](https://openairdocs.org/stc/SE3177NM): Installation of Machin, Inc. intercooler & associated systems. American Aviation Inc
- [STC SE09492SC](https://openairdocs.org/stc/SE09492SC): Installation and usage of Exxon 20W50 multigrade aircraft engine oil conforming to Exxon Oil formulation WS-3013. Exxon Company USA. Lists TIO-540 Series
- [STC SE00350SE](https://openairdocs.org/stc/SE00350SE): Installation of sump mounted chip detector. Aviation Development Corporation
- [STC SE7674SW](https://openairdocs.org/stc/SE7674SW): Grind nitrided cylinder barrels plus .010 over size pistons, to .010 and install SL10545P10 SL74241P10 compression rings and SL73857P10 Oil Control rings. Superior Air Parts, Inc
- [STC SE8023SW](https://openairdocs.org/stc/SE8023SW): Installation and usage of AEROSHELL. Shell Development Co. Lists TIO-540 Series
- [STC SE5879SW](https://openairdocs.org/stc/SE5879SW): Use of Phillips X/C II 20W-50 and25W-60 oil (OSS 55875) in all Avco reciprocating aircraft engines from 65 to 450 BHP. Phillips Petroleum Co. Lists TIO-540 Series
- [STC SE244NE](https://openairdocs.org/stc/SE244NE): Installation of Mattituck plasma flame sprayed cylinder barrels in Teledyne reciprocating engines. Mattituck Airbase, Inc. Lists TIO-540 Series
- [STC SE80NE](https://openairdocs.org/stc/SE80NE): Installation and usage of Bel-Ray synthetic aviation oil, Bel-Ray Aero 1, (nonsupercharged), horizontally opposed direct drive, aircraft engines of 350 hp. or less. Bel-Ray Company, Inc. Lists TIO-540 Series
- [STC SE128NE](https://openairdocs.org/stc/SE128NE): Use of AMS/OIL 15W 50 synthetic piston aircraft oil in Avco engines. AMS/OIL. Lists TIO-540 Series
- [STC SA01436DE](https://openairdocs.org/stc/SA01436DE) (historical): Installation of Firewall Forward Technologies, LLC modified camshaft. Centri-Lube Technologies LLC

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