# Lycoming IO-540-E1B5

- Type: Engine model (FAA registry)
- Registry code: 41639
- Manufacturer (registry): LYCOMING
- Model: IO-540-E1B5
- Engine type: Reciprocating
- Power: 290 hp
- Data sheet: [TCDS 1E4](https://openairdocs.org/tcds/1E4) (OpenAirDocs)
- Holder: Lycoming Engines
- Installed in: 4 registered aircraft
- Page: https://openairdocs.org/engine/lycoming-io-540-e1b5

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 2026-17-10](https://openairdocs.org/ad/2026-17-10): Reciprocating Engine Cylinder Section · Lycoming Engines O-235, O-235-A, O-235-AP and 159 more. Effective Sep 14, 2026
- [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 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 2006-10-21](https://openairdocs.org/ad/2006-10-21): ECi connecting rods · Engine Components Reciprocating Engine Connecting Rods, AEIO-360-B1B, AEIO-360-B1D and 171 more. Effective Jun 22, 2006
- [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 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 96-23-03](https://openairdocs.org/ad/96-23-03): High pressure fuel pumps · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 174 more. Effective Dec 23, 1996
- [AD 96-09-10](https://openairdocs.org/ad/96-09-10): Oil pump · Lycoming Engines AEIO-320-E1A, AEIO-320-E1B, AEIO-320-E2A and 334 more. Effective Jul 15, 1996
- [AD 95-26-02](https://openairdocs.org/ad/95-26-02): Aviation Gasoline · Lycoming Engines IO-320-B1A, IO-320-B1B, IO-320-B1C and 182 more. Effective Jan 24, 1996
- [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 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 75-08-09](https://openairdocs.org/ad/75-08-09): Oil Pump Drive Shaft · Lycoming Engines AEIO-360-A1B, AEIO-360-A1B6, AEIO-360-A1C and 365 more. Effective Aug 18, 1977
- [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 66-06-03](https://openairdocs.org/ad/66-06-03): Connecting Rod Assemblies · Lycoming Engines GO-435-C2 (O-435-17), GO-435-C2A, GO-435-C2A2 and 317 more. Effective Jan 16, 1969
- [AD 66-20-04](https://openairdocs.org/ad/66-20-04): Oil Filter Adapter Gasket · Lycoming Engines IO-320-A1A, IO-320-A2A, IO-320-B1A and 121 more. Effective Aug 27, 1966

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 2006-20-09](https://openairdocs.org/ad/2006-20-09) (historical): Certain crankshafts replacing · Lycoming Engines AEIO-360-A1B6, AEIO-360-A1E6, AEIO-540-D4A5 and 82 more. Effective Nov 3, 2006
- [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 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 81-18-04 R2](https://openairdocs.org/ad/81-18-04-R2) (historical): Engine Oil Pump Driven Impeller and Shaft · Textron Lycoming, AVCO AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 376 more. Effective Jun 7, 1982

## Information bulletins (advisory) (7)

- [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-13-06](https://openairdocs.org/saib/NE-13-06): Pushrod Shroud Spring Retainers, Engine Components Part No. AEL14995, for Lycoming Engines 320, 360, and 540 Series Engines. Issued Nov 21, 2012
- [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)

- [N210HD](https://openairdocs.org/aircraft/N210HD): [Ponderosa Aviation LLC](https://openairdocs.org/faa-owner/PONDEROSA%20AVIATION%20LLC), [Safford, AZ](https://openairdocs.org/faa-place/AZ/Safford), built 1969, S/N 1841-33
- [N458PA](https://openairdocs.org/aircraft/N458PA): [Fuller James Andrew](https://openairdocs.org/faa-owner/FULLER%20JAMES%20ANDREW), St John, built 1962, S/N 500B-1146-80
- [N741CA](https://openairdocs.org/aircraft/N741CA): [Harold F Mowery](https://openairdocs.org/faa-owner/HAROLD%20F%20MOWERY), [Mechanicsburg, PA](https://openairdocs.org/faa-place/PA/Mechanicsburg), built 1974, S/N 3191
- [N957JA](https://openairdocs.org/aircraft/N957JA): [Cbmw LLC](https://openairdocs.org/faa-owner/CBMW%20LLC), [Wise, VA](https://openairdocs.org/faa-place/VA/Wise), built 1978, S/N 3308

## NTSB investigations

None matched to aircraft with this engine model.

## FAA accident and incident reports

None matched to aircraft with this engine model.

## Service difficulty reports (87, newest 50)

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

- [SDR 2013FA0000406](https://openairdocs.org/sdr/2013FA0000406), Jul 12, 2013: DRIVE ASSY. ACTIVATED. DURING FLIGHT, ACFT HAD STRONG BURNING ODOR IN CABIN. INVESTIGATION AND INSPECTION FOUND AIR CONDITIONING COOLING SYSTEM COMPRESSOR DRIVE MOTOR FAILED. UPON REM
- [SDR 2013F00003](https://openairdocs.org/sdr/2013F00003), Jul 23, 2012: LINE. LEAKING. HYDRAULIC FAILURE OCCURRED DUE TO THE HOSE FOR HYD PRESSURE GAUGE BEING DAMAGED, RESULTING IN LEAKAGE OF HYD FLUID AND SUBSEQUENTLY THE INDICATION OF SYS PRESSU
- [SDR CA100127016](https://openairdocs.org/sdr/CA100127016), Jan 5, 2010: SPAR CAP. CORRODED. (CAN) AFTER ACCOMPLISHING AD 94-04-14 IT WAS NOTED THAT THE WING LOWER SPAR CAP WAS CORRODED BEYOND THE SAFE LIMIT ACCORDING TO SB 208A. THE ACFT WAS GROUNDED.
- [SDR CA090226003](https://openairdocs.org/sdr/CA090226003), Feb 24, 2009: BRACKET. LOOSE. (CAN) DURING GEAR SWING INSP, IT WAS NOTED THAT ON THE NOSE GEAR DOWN AND LOCKED CYCLE THERE WAS CONSIDERABLE MOVEMENT ON THE ACFT STRUCTURE THAT ATTACHES TO TH
- [SDR CA090129015](https://openairdocs.org/sdr/CA090129015), Jan 26, 2009: SHAFT. CRACKED. ON VISUAL INSPECTION OF THE NOSE LANDING GEAR DRAG BRACE AND BUNGEE SYSTEM, IT WAS FOUND THAT THE SHAFT LINKING THE DRAG BRACE TO THE BUNGEE WAS CRACKED AT THE 
- [SDR EHS2008F00000](https://openairdocs.org/sdr/EHS2008F00000), Jul 2, 2008: PISTON. BURNED. WHILE FLYING A FIRE MISSION IN SUPPORT OF USFS, THE PILOT NOTICED THE RT ENG OIL PRESSURE FLOWLY STARTING TO DECREASE. THE DECISION WAS MADE TO RETURN TO THE AI
- [SDR 2008FA0000167](https://openairdocs.org/sdr/2008FA0000167), Feb 26, 2008: MAGNETO. WORN. ENGINE WAS GETTING HARD TO START, CHECKED MAG TIMING AND FOUND LT MAG TIMING OUT OF LIMITS, DISASSEMBLED MAG AND FOUND THE CAM WORN OUT . 81.1 HRS SINCE NEW.
- [SDR 2008FA0000164](https://openairdocs.org/sdr/2008FA0000164), Jan 10, 2008: MAGNETO. WORN. ENGINE WAS GETTING HARD TO START, CHECKED MAG TIMING AND FOUND LT MAG TIMING OUT OF LIMITS, DISASSEMBLED MAG AND FOUND THE CAM WORN OUT . 100.3 HRS SINCE NEW
- [SDR 2008FA0000013](https://openairdocs.org/sdr/2008FA0000013), Jan 2, 2008: MAGNETO. WORN. CAM LOBE INSIDE MAG THAT OPENS AND CLOSES POINTS WORN OUT.
- [SDR 2008FA0000103](https://openairdocs.org/sdr/2008FA0000103), Oct 30, 2007: MAGNETO. WORN. ENGINE WAS GETTING HARD TO START, CHECKED MAG TIMING AND FOUND LT MAG TIMING, OUT OF LIMITS. DISASSEMBLED MAG AND FOUND THE CAM WORN OUT . 58.7 HRS SINCE NEW.
- [SDR CA070517007](https://openairdocs.org/sdr/CA070517007), May 8, 2007: WINGLET. SEPARATED. (CAN) IT WAS FOUND THAT THE SHEET METAL SCREWS HOLDING THE TIP ON THE WING HAD ALL COME LOOSE. THE WING TIP THEN VIBRATED FOR A PERIOD OF TIME ,ELONGATING THE S
- [SDR CA070502012](https://openairdocs.org/sdr/CA070502012), Apr 24, 2007: WHEEL. CRACKED. (CAN) AXLE PLUG 9546 WHICH IS USED TO SECURE AXLE IN NOSE WHEEL SEPARATED ALLOWING AXLE BOLT TO COME HALF WAY OUT OF AXLE WHICH THE PILOT NOTICED ON WALK AROUND
- [SDR CA070201009](https://openairdocs.org/sdr/CA070201009), Feb 1, 2007: BRACKET. WORN. (CAN) THE ALTERNATOR ADJUSTING BRACKET BOLT HOLE THAT ATTACHES THE BRACKET TO THE ENGINE WAS FOUND CRACKED ALL THE WAY THROUGH. THE BRACKET WAS ONLY BEING HELD 
- [SDR 2006FA0000466](https://openairdocs.org/sdr/2006FA0000466), Apr 10, 2006: CONNECTING ROD. BROKEN. CUSTOMER WAS ENROUTE TO MAINTENANCE SHOP TO GET ANNUAL INSPECTION, BOTH ENGINES OVERHAULED. RT ENGINE CYLINDER NR 2 CONNECTING ROD BROKE AT THE CRANKSHAFT ATTAC
- [SDR AU510002170](https://openairdocs.org/sdr/AU510002170), Dec 12, 2005: SEAL. WORN. RT MAIN LANDING GEAR RAM SEALS WORN AND LEAKING. LOSS OF HYDRAULIC FLUID.
- [SDR 2006FA0000771](https://openairdocs.org/sdr/2006FA0000771), Nov 15, 2005: CRANKSHAFT. FAILED. APPROX 5 MILES INTO FLIGHT, FELT A SURGE FROM RT ENG, AC STARTS YAWING TO RT. PROCEEDED TO FEATHER PROP WHICH WAS SUCCESSFUL AT THIS TIME, NOTICED ENGINE STOPPE
- [SDR AU510002155](https://openairdocs.org/sdr/AU510002155), Sep 11, 2005: CRANKSHAFT. BROKEN. CRANKSHAFT BROKEN COMPLETELY THROUGH AT NR 1 CRANKPIN JOURNAL.
- [SDR CA050724001](https://openairdocs.org/sdr/CA050724001), Jul 8, 2005: CRANKSHAFT. SHEARED. CRANKSHAFT SPLIT NEXT TO THE NR 3 MAIN BEARING JOURNAL. FAILURE NEXT TO THE NR 4 CONNECTING ROD. CRANKSHAFT THEN BROKE INTO 3 PIECES AND PUNCTURED THE CRANKCASE
- [SDR AU510001503](https://openairdocs.org/sdr/AU510001503), Jun 6, 2005: LINE. BROKEN. (AUS) RT ENGINE NR 2 CYLINDER FUEL INJECTOR LINE BROKEN AT NIPPLE. (CASA NR 510001503).
- [SDR AUS20031276](https://openairdocs.org/sdr/AUS20031276), Dec 18, 2003: SEAL. DAMAGED. (AUS) RT ENGINE OIL FILTER SEAL DAMAGED AND LEAKING. SUSPECT SEAL DAMAGED DURING INSTALLATION. PERSONNEL/MAINTENANCE ERROR.
- [SDR 2003FA0001271](https://openairdocs.org/sdr/2003FA0001271), Dec 2, 2003: CRANKCASE. FAILED. DURING ROUTINE FLIGHT, LOUD NOISE WAS HEARD. RT ENGINE WAS SHUT DOWN AND SECURED. AFTER AN UNEVENTFUL LANDING, AN INSPECTION REVEALED A CATASTROPHIC CRANKCASE F
- [SDR AUS20031077](https://openairdocs.org/sdr/AUS20031077), Oct 22, 2003: RIB. CRACKED. (AUS) RT ELEVATOR FORWARD RIB CRACKED AT TORQUE TUBE OUTBOARD MOUNTING FLANGE. RIB CONTAINS TWO CRACKS FROM TOP AND BOTTOM ATTACHMENT RIVETS.
- [SDR AUS20031298](https://openairdocs.org/sdr/AUS20031298), Sep 26, 2003: CLEVIS. CRACKED. (AUS) MAIN LANDING GEAR CLEVIS CRACKED. FOUND USING MAGNETIC PARTICLE INSPECTION AND VISUAL TECHNIQUES.
- [SDR AUS20030955](https://openairdocs.org/sdr/AUS20030955), Sep 19, 2003: MAGNETO. OUT OF ADJUST. (AUS) LT ENGINE LOST OIL PRESSURE. INSPECTION FOUND NR 4 PISTON FAILED DUE TO DETONATION. FURTHER INVESTIGATION FOUND THE LT MAGNETO TIMING HAD MOVED FROM 20 DE
- [SDR AUS20030975](https://openairdocs.org/sdr/AUS20030975), Sep 16, 2003: PIN. CRACKED. (AUS) LT AND RT MAIN LANDING GEAR ACTUATOR CLEVIS PINS CRACKED.
- [SDR AUS20031078](https://openairdocs.org/sdr/AUS20031078), Sep 12, 2003: RIB. CRACKED. (AUS) RT ELEVATOR FORWARD RIB CRACKED AT TORQUE TUBE OUTBOARD MOUNTING FLANGE. RIB IS CRACKED IN TWO PLACES FROM TOP AND BOTTOM ATTACHMENT RIVETS.
- [SDR AUS20030976](https://openairdocs.org/sdr/AUS20030976), Sep 3, 2003: PIN. CRACKED. (AUS) LT AND RT MAIN LANDING GEAR ACTUATOR CLEVIS PINS CRACKED.
- [SDR 2004F00092](https://openairdocs.org/sdr/2004F00092), Sep 1, 2003: TURBOCHARGER. MALFUNCTIONED. TURBOCHARGER REPORTED BY TOWER TO BE SMOKING DURING APPROACH. TURBOCHARGER SHIPPED TO MFG FOR INSPECTION. PRELIMINARY EVALUATION: COMPRESSOR RUB.
- [SDR AUS20030974](https://openairdocs.org/sdr/AUS20030974), Aug 15, 2003: PIN. CRACKED. (AUS) LT AND RT MAIN LANDING GEAR ACTUATOR CLEVIS PINS CRACKED.
- [SDR AUS20030678](https://openairdocs.org/sdr/AUS20030678), Jul 4, 2003: ROD END. FRACTURED. (AUS) MAIN LANDING GEAR ACTUATOR RODEND FRACTURED AT GREASE NIPPLE HOLE.
- [SDR AUS20030792](https://openairdocs.org/sdr/AUS20030792), May 28, 2003: CLEVIS. FRACTURED. (AUS) LT MAIN LANDING GEAR ACTUATOR CLEVIS FRACTURED.
- [SDR AUS20030549](https://openairdocs.org/sdr/AUS20030549), May 16, 2003: SEPARATOR. CONTAMINATED. (AUS) RT ENGINE FUEL VAPOUR SEPARATOR BLOCKED BY PARTICLES OF UNKNOWN TYPE.
- [SDR AUS20030571](https://openairdocs.org/sdr/AUS20030571), Apr 26, 2003: ENGINE. FAILED. (AUS) LT ENGINE FAILED TO RESTART IN FLIGHT AFTER AN INTENTIONAL SHUTDOWN. INVESTIGATION COULD FIND NO PROBLEMS WITH THE ENGINE. SUSPECT CAUSED BY OVERPRIMING O
- [SDR FTU2003F00006](https://openairdocs.org/sdr/FTU2003F00006), Apr 14, 2003: ENGINE. CONTAMINATED. DURING A ROUTINE OIL CHANGE WHEN OIL FILTER WAS CUT OPEN FOR INSPECTION, A LARGE AMOUNT OF SILVER PARTICILES WERE FOUND. OIL SUMP SCREEN WAS REMOVED FOR INSPECT
- [SDR AUS20021333](https://openairdocs.org/sdr/AUS20021333), Nov 15, 2002: CABLE. WORN. (AUS) AILERON CABLE FRAYED IN AREA OF FAIRLEAD LOCATED OUTBOARD OF LH NACELLE.
- [SDR AUS20020874](https://openairdocs.org/sdr/AUS20020874), Aug 9, 2002: RESTRICTOR VALVE. BLOCKED. (AUS) FUEL VAPOR SEPARATOR / FILTER ASSEMBLY RESTRICTOR BLOCKED. THE RESTRICTOR IS LOCATED IN THE RETURN LINE FROM THE FUEL DISTRIBUTOR VALVE.
- [SDR AUS20020686](https://openairdocs.org/sdr/AUS20020686), Jul 14, 2002: ENGINE. MALFUNCTIONED. (AUS) LT ENGINE VIBRATING AND LOSING POWER. LIMITED INFORMATION PROVIDED.
- [SDR AUS20020643](https://openairdocs.org/sdr/AUS20020643), Jun 28, 2002: CLEVIS. FRACTURED. (AUS) MAIN LANDING GEAR HYDRAULIC RAM RODEND CLEVIS FRACTURED.
- [SDR AUS20020563](https://openairdocs.org/sdr/AUS20020563), May 29, 2002: COOLING FAN. SEIZED. (AUS) GPS COOLING FAN SEIZED.
- [SDR AUS20020384](https://openairdocs.org/sdr/AUS20020384), Apr 19, 2002: INDICATOR. DAMAGED. (AUS) TURN COORDINATOR INDICATION ON RT TURN ONLY. INVESTIGATION FOUND INTERNALLY THAT THE INDICATOR FORK HAD DISLODGED FROM THE ROTOR BUMP POST.
- [SDR AUS20020295](https://openairdocs.org/sdr/AUS20020295), Mar 20, 2002: DIAPHRAGM. DAMAGED. (AUS) LH ENGINE MANIFOLD VALVE DIAPHRAGM TORN. LENGTH OF TEAR APPROXIMATELY 12.7MM (0.5IN).
- [SDR AUS20020008](https://openairdocs.org/sdr/AUS20020008), Jan 3, 2002: BEARING. DELAMINATED. (AUS) ENGINE NO1 MAIN BEARING DELAMINATED. METAL CONTAMINATION OF OIL FILTERS.
- [SDR AUS20011379](https://openairdocs.org/sdr/AUS20011379), Dec 12, 2001: BEARING. DELAMINATED. (AUS) NO3 MAIN BEARING SHELL DELAMINATED AND SHEDDING LARGE FLAKES OF BEARING MATERIAL. METAL CONTAMINATION OF OIL FILTER. BEARING HADA MANUFACTURERS STAMP (ML-
- [SDR AUS20010904](https://openairdocs.org/sdr/AUS20010904), Aug 14, 2001: STUD. SHEARED. (AUS) LH ENGINE NO4 CYLINDER HOLDDOWN STUDS (3OFF) SHEARED. FOLLOWING REMOVAL OF THE CYLINDER THE CRANKCASE WAS FOUND TO BE CRACKED THROUGH THE AREA OF THE HOLD
- [SDR AUS20010875](https://openairdocs.org/sdr/AUS20010875), Aug 13, 2001: BEARING. DELAMINATED. (AUS) ENGINE FRONT MAIN BEARING DEFECTIVE. BEARING MATERIAL APPEARS TOBE DELAMINATED FROM BEARING SHELL. METAL CONTAMINATION OF OIL SYSTEM. SUSPECT MANUFACTURIN
- [SDR CA010628039](https://openairdocs.org/sdr/CA010628039), Jun 28, 2001: CAMSHAFT. WORN. (CAN) ENGINE HAD BEEN HARD TO START, LOW STATIC RPM AND HIGH MANIFOLD PRESSURE. ENGINE INSP. REVEALED THAT THE CAMSHAFT LOBE THAT DRIVES NR 5&6 CYL INTAKE VALVE
- [SDR AUS20010689](https://openairdocs.org/sdr/AUS20010689), Jun 22, 2001: CYLINDER. DAMAGED. (AUS) ENGINE CYLINDER HOLED IN AREA ADJACENT TO TOP SPARK PLUG HOLE.
- [SDR AUS20010673](https://openairdocs.org/sdr/AUS20010673), Jun 21, 2001: INDICATOR. FAILED. (AUS) TRIPLE GAUGE FAILED AND FILLED WITH FUEL.
- [SDR AUS20010556](https://openairdocs.org/sdr/AUS20010556), May 28, 2001: PIN. CRACKED. (AUS) MAIN LANDING GEAR CLEVIS PIN CRACKED FROM BOLT HOLE. FOUND DURING INSPECTION IAW SL 376.
- [SDR AUS20010451](https://openairdocs.org/sdr/AUS20010451), Apr 20, 2001: WASHER. FAILED. (AUS) RH ENGINE COUNTERWEIGHT RETAINING WASHER PNO 71907 HAD FAILED ALLOWING THE COUNTERWEIGHT ROLLER PNO 72797 TO MIGRATE ANDCONTACT NO5 CYLINDER CONNECTING RO

All 87: https://openairdocs.org/engine/lycoming-io-540-e1b5/reports.md

## STCs that may be installed (OpenAirDocs) (44)

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 SE2387CE](https://openairdocs.org/stc/SE2387CE): Installation of B & C Speciality Products lightweight (10.2 pounds) engine starter P/N BC 315-100-1(12 volt) or P/N BC 315-100-3(24 volt). B & C Specialty Products Inc. Lists IO-540 Series
- [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 SE60WE](https://openairdocs.org/stc/SE60WE): Installation of two Rajay Turbochargers P/N RJ 0327-1 or -2 and 9 lb. Sonic nozzle. TALCO Aviation
- [STC SE6WE](https://openairdocs.org/stc/SE6WE): Installation of two Roto-Master Turbochargers Model No. 3DT5FF10J2, P/N 600572-00 (formerly Rajay Model 315F10, P/N RJ0080-100, or 102). TALCO Aviation
- [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 IO-540 Series
- [STC SE4408SW](https://openairdocs.org/stc/SE4408SW): Miscellaneous engine cylinder replacement parts. Continental Motors, Inc. Lists IO-540 Series
- [STC SE7509SW](https://openairdocs.org/stc/SE7509SW): 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 IO-540 Series
- [STC SE7667SW](https://openairdocs.org/stc/SE7667SW): Installation of parts listed on Drawing List No. 8810-3, Rev 6. Continental Motors, Inc. Lists IO-540 Series
- [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings. Continental Motors, Inc. Lists IO-540 Series
- [STC SE00218NY](https://openairdocs.org/stc/SE00218NY): Replacement of Lycoming starter with SKY-TEC 12 volt starter installed. Hartzell Engine Technologies, LLC. Lists IO-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 SE00357NY](https://openairdocs.org/stc/SE00357NY): Replacement of Lycoming starter with SKY-TEC 24-volt starter installed. Hartzell Engine Technologies, LLC. Lists IO-540 Series
- [STC SE2901NM](https://openairdocs.org/stc/SE2901NM): Lycoming valve cover gasket. Real Gaskets Tennessee
- [STC SE2902NM](https://openairdocs.org/stc/SE2902NM): Lycoming valve cover gasket. Real Gaskets Tennessee
- [STC SE3329NM](https://openairdocs.org/stc/SE3329NM): Lycoming valve cover gasket. Real Gaskets Tennessee
- [STC SE7582SW](https://openairdocs.org/stc/SE7582SW): Grinding of high compression NITRIDED Cylinders to .010 oversize, as an alternative to chrome plating or rebarreling, and the installation of SL10207 P10 Piston, SL74241 P10 Top and second compression ring, and SL 73857 P10 oil control ring. Superior Air Parts, Inc
- [STC SE00768CH](https://openairdocs.org/stc/SE00768CH): Replace Slick 6000, 6100, 6200 and 6300 series magnetos and TCM/Bendix S6-20, S6-200 and S6-1200 series magnetos with the Champion Limited Authority Spark Advance Regulator (LASARTM) ignition system. Champion Aerospace LLC. Lists IO-540 Series
- [STC SE01524CH](https://openairdocs.org/stc/SE01524CH): Replace Slick 6000, 6100, 6200, 6300, 4000, 4100, 4200, and 4300 series magnetos and TCM/Bendix S6-20, S6-200, S6-1200, S-20, S-200, and S-1200 series magnetos with Champion Limited Authority Spark Advance Regulator (LASAR ) Model 4755 and 6755 bush kit ignition systems. Champion Aerospace LLC
- [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 SE22WE](https://openairdocs.org/stc/SE22WE): Installation of AiResearch Turbosupercharger 406610-3. Approved for IO-540-J4A5 model. GE Engine Services-Corporate Aviation Inc. DBA Garrett Aviation Services. Lists IO-540 Series
- [STC SE5743NM](https://openairdocs.org/stc/SE5743NM): Intallation of adapter for externally mounted oil filter. Aviation Development Corporation
- [STC SE00890LA](https://openairdocs.org/stc/SE00890LA): Installation of Nickson's cylinder barrels on Lycoming reciprocating engine models. Nickson's Machine Shop Inc. Lists IO-540 Series
- [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 IO-540 Series
- [STC SE00350SE](https://openairdocs.org/stc/SE00350SE): Installation of sump mounted chip detector. Aviation Development Corporation
- [STC SE8023SW](https://openairdocs.org/stc/SE8023SW): Installation and usage of AEROSHELL. Shell Development Co. Lists IO-540 Series
- [STC SE452NE](https://openairdocs.org/stc/SE452NE): Installation and usage of 'Mobil AV 1' aviation oil. Mobil Research & Development Corp. Lists IO-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 IO-540 Series
- [STC SE5924SW](https://openairdocs.org/stc/SE5924SW): Installation of stainless steel replacement exhaust studs on AVCO engines. Perrigo & Steele Aircraft Engr Company. Lists IO-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 IO-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 IO-540 Series
- [STC SE1445SO](https://openairdocs.org/stc/SE1445SO): Use of Aero-blend oil additive in Teledyne (non turbocharged) aircraft engines. ProTec. Lists IO-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 IO-540 Series
- [STC SE44WE](https://openairdocs.org/stc/SE44WE): Use of Kling Aviation Oil, Specifications KL-100, KL-200 and KL-300 in Continental and Lycoming engines. Kling Oil Company. Lists IO-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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