# Lycoming IO-540-T4B5 - Type: Engine model (FAA registry) - Registry code: 41804 - Manufacturer (registry): LYCOMING - Model: IO-540-T4B5 - Engine type: Reciprocating - Power: 260 hp - Data sheet: [TCDS 1E4](https://openairdocs.org/tcds/1E4) (OpenAirDocs) - Holder: Lycoming Engines - Installed in: 17 registered aircraft - Page: https://openairdocs.org/engine/lycoming-io-540-t4b5 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 2009-26-12](https://openairdocs.org/ad/2009-26-12): Cylinder assemblies · Engine Components Reciprocating Engine Cylinder Assemblies, AEIO-320-D1B, AEIO-320-D2B and 264 more. Effective Feb 4, 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 2007-04-19 R1](https://openairdocs.org/ad/2007-04-19-R1): SAP cylinder assemblies · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 314 more. Effective May 7, 2007 - [AD 2006-12-07](https://openairdocs.org/ad/2006-12-07): ECi cylinder assemblies · Aerostar AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 386 more. Effective Jul 11, 2006 - [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 2005-19-11](https://openairdocs.org/ad/2005-19-11): Crankshafts · Lycoming Engines AEIO-360-A1B6, AEIO-360-A1E6, AEIO-540-D4A5 and 59 more. Effective Oct 21, 2005 - [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 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 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 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 2008-19-05](https://openairdocs.org/ad/2008-19-05) (historical): Parallel Valve'' reciprocating engines · Engine Components Reciprocating Engine Cylinder Assemblies, AEIO-320-D1B, AEIO-320-D2B and 262 more. Effective Oct 20, 2008 - [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 (17) - [N116SB](https://openairdocs.org/aircraft/N116SB): [114b Holding Inc Trustee](https://openairdocs.org/faa-owner/114B%20HOLDING%20INC%20TRUSTEE), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 2000, S/N 14678 - [N1322](https://openairdocs.org/aircraft/N1322): [Temple Donald G](https://openairdocs.org/faa-owner/TEMPLE%20DONALD%20G), [Colorado Springs, CO](https://openairdocs.org/faa-place/CO/Colorado%20Springs), built 1976, S/N 14165 - [N136D](https://openairdocs.org/aircraft/N136D): [Buckeye Ridge Farm LLC](https://openairdocs.org/faa-owner/BUCKEYE%20RIDGE%20FARM%20LLC), [Vidalia, GA](https://openairdocs.org/faa-place/GA/Vidalia), built 1978, S/N 14361 - [N1931J](https://openairdocs.org/aircraft/N1931J): [Aerodyme Corp](https://openairdocs.org/faa-owner/AERODYME%20CORP), [South Burlington, VT](https://openairdocs.org/faa-place/VT/South%20Burlington), built 1976, S/N 14031 - [N317RM](https://openairdocs.org/aircraft/N317RM): [Monaghan Robert Edward](https://openairdocs.org/faa-owner/MONAGHAN%20ROBERT%20EDWARD), [San Bruno, CA](https://openairdocs.org/faa-place/CA/San%20Bruno), built 2008, S/N 2084 - [N353RV](https://openairdocs.org/aircraft/N353RV): [Aerosky LLC](https://openairdocs.org/faa-owner/AEROSKY%20LLC), [Fayetteville, GA](https://openairdocs.org/faa-place/GA/Fayetteville), built 2009, S/N 40327 - [N44NP](https://openairdocs.org/aircraft/N44NP): [International Air Services Inc Trustee](https://openairdocs.org/faa-owner/INTERNATIONAL%20AIR%20SERVICES%20INC%20TRUSTEE), [Carson City, NV](https://openairdocs.org/faa-place/NV/Carson%20City), built 2000, S/N 14679 - [N4940W](https://openairdocs.org/aircraft/N4940W): [Kitt Consulting LLC](https://openairdocs.org/faa-owner/KITT%20CONSULTING%20LLC), [Boardman, OH](https://openairdocs.org/faa-place/OH/Boardman), built 1977, S/N 14262 - [N4947W](https://openairdocs.org/aircraft/N4947W): [Bloom Kevin Lynn](https://openairdocs.org/faa-owner/BLOOM%20KEVIN%20LYNN), [Freeport, FL](https://openairdocs.org/faa-place/FL/Freeport), built 1977, S/N 14269 - [N50BG](https://openairdocs.org/aircraft/N50BG): [Stilson Scott](https://openairdocs.org/faa-owner/STILSON%20SCOTT), [Ivins, UT](https://openairdocs.org/faa-place/UT/Ivins), built 1976, S/N 14184 - [N540BE](https://openairdocs.org/aircraft/N540BE): [Lemons Brooks D](https://openairdocs.org/faa-owner/LEMONS%20BROOKS%20D), [Visalia, CA](https://openairdocs.org/faa-place/CA/Visalia), built 1980, S/N 0001 - [N6105U](https://openairdocs.org/aircraft/N6105U): [Greggton Resources LLC](https://openairdocs.org/faa-owner/GREGGTON%20RESOURCES%20LLC), [Longview, TX](https://openairdocs.org/faa-place/TX/Longview), S/N 14625 - [N814PD](https://openairdocs.org/aircraft/N814PD): [Howard Michael Q](https://openairdocs.org/faa-owner/HOWARD%20MICHAEL%20Q), [Peachtree City, GA](https://openairdocs.org/faa-place/GA/Peachtree%20City), built 2014, S/N 40756 - [N910BW](https://openairdocs.org/aircraft/N910BW): [Ham John T](https://openairdocs.org/faa-owner/HAM%20JOHN%20T), [Franklin, TN](https://openairdocs.org/faa-place/TN/Franklin), S/N 40929 - [N916MV](https://openairdocs.org/aircraft/N916MV): [3b Aircraft Inc Trustee](https://openairdocs.org/faa-owner/3B%20AIRCRAFT%20INC%20TRUSTEE), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1978, S/N 14359 - [N935MA](https://openairdocs.org/aircraft/N935MA): [Monte Anderson Global Mission Inc](https://openairdocs.org/faa-owner/MONTE%20ANDERSON%20GLOBAL%20MISSION%20INC), [Lahoma, OK](https://openairdocs.org/faa-place/OK/Lahoma), built 2023, S/N 5001-1M5/2M5-5004 - [N946RH](https://openairdocs.org/aircraft/N946RH): [Morcom Aviation Services Inc DBA](https://openairdocs.org/faa-owner/MORCOM%20AVIATION%20SERVICES%20INC%20DBA), [Everett, WA](https://openairdocs.org/faa-place/WA/Everett), built 1977, S/N 14223 ## NTSB investigations (3) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB ERA22LA322](https://openairdocs.org/ntsb/ERA22LA322), Jul 18, 2022: Vans RV10 (N910BW), Palatka, FL, substantial damage. Probable cause: Total loss of engine power due to the improper installation of an electronic ignition system connector plug. - [NTSB CEN11LA588](https://openairdocs.org/ntsb/CEN11LA588), Aug 21, 2011: Hendryx Steve/Wiley Ross Super Rebel (N540AF), La Porte City, IA, substantial damage. Probable cause: The improper assembly of the aileron cable by the airplane builder. - [NTSB LAX84LA137](https://openairdocs.org/ntsb/LAX84LA137), Jan 11, 1984: Rockwell 114 (N50BG), Las Vegas, NV, substantial damage ## FAA accident and incident reports (6) 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 20220901015989I](https://openairdocs.org/incident/20220901015989I), Sep 1, 2022: Rockwell International 114 (N136D), Jacksonville, FL, Minor damage. N136D was cleared to land runway 14. After touchdown the right landing gear collapsed and the airplane dropped and started to skid off the runway to the right… - [Accident 20220718012539A](https://openairdocs.org/incident/20220718012539A), Jul 18, 2022: Darrell Bryan Wade RV-10 (N910BW), Palatka, FL, Destroyed. On 07/18/2022 at approximately 08:03 EST an RV10,[privacy data omitted] was departing rwy 09 at 28J (Palatka, FL) under day VMC conditions when the aircraft… - [Accident 20110821020569A](https://openairdocs.org/incident/20110821020569A), Aug 21, 2011: Hendryx Steve/Wiley Ross MURPHYACFTSUPERREBEL (N540AF), La Porte City, IA, Substantial damage. The airman was conducting his third test flight in this aircraft. He reports being in the air for 20 minutes, at approximately 1,000 ft AGL, conducting turns.… - [Incident 20050616013389I](https://openairdocs.org/incident/20050616013389I), Jun 16, 2005: Gulstm 114 (N4940W), Willoughby, OH, Minor damage. (-23) Gear handle was left in up position during a maintenance check and nose gear collapsed during taxiing. - [Incident 19900627040219I](https://openairdocs.org/incident/19900627040219I), Jun 27, 1990: Gulstm 114 (N4940W), Winchester, VA. Engine quit as pilot changed fuel selector. Placed fuel selector to previous tank. Engine restarted. Landed safely. - [Accident 19840111022889A](https://openairdocs.org/incident/19840111022889A), Jan 11, 1984: Gulstm 114 (N50BG), Las Vegas, NV, Substantial damage. Pilot was unable to control drift and aircraft ran off side of runway onto soft shoulder collapsing gear. ## Service difficulty reports (18) As reported by operators and repair stations, by the model named in the report. - [SDR 2018FA0000455](https://openairdocs.org/sdr/2018FA0000455), Jul 9, 2018: SERVO. FAILED. WITH A FACTORY OVERHAULED ENGINE, THE FUEL SERVO FAILED AFTER 32.4 HOURS. AFTER REPAIRED IT LASTED 12.2 HOURS. THEN INSTALLED A NEW SERVO AND IT ONLY LASTED 3 H - [SDR CA131022004](https://openairdocs.org/sdr/CA131022004), Oct 3, 2013: BOLT. SHEARED. (CAN) AT THE ANNUAL INSPECTION THE NOSE GEAR WAS INSPECTED THE UPPER BOLT THAT HOLDS THE NOSE GEAR ACTUATOR IN PLACE WAS SHEARED BUT STILL IN PLACE. THE LOWER B - [SDR CA130618004](https://openairdocs.org/sdr/CA130618004), Jun 13, 2013: DRAG LINK. BROKEN. (CAN) DURING TAKEOFF THE OWNER REPORTED WHEN GEAR WAS SELECTED UP THE LT AND RT MAIN GEAR CAME UP BUT THE NOSE GEAR STILL INDICATED DOWN AND LOOKED. THE PILOT S - [SDR 2011FA0000488](https://openairdocs.org/sdr/2011FA0000488), Jun 18, 2011: DIODE. BURNED OUT. AIR CONDITIONING/ALTERNATOR NR 2 SYS PROBLEM GENERATED SMOKE IN THE COCKPIT. ACFT PERFORMED PRECAUTIONARY LANDING. PROBLEM WAS IDENTIFIED BY MX AND SYS WAS DISA - [SDR 2011FA0000156](https://openairdocs.org/sdr/2011FA0000156), Mar 4, 2011: SPAR. CRACKED. DURING THE ACCOMPLISHMENT OF SL-114-17 A SMALL HAIRLINE CRACK WAS DISCOVERED. THE CRACK IS APPROX. 2.35" IN LENGTH, ON THE RT ELEVATOR SPAR, BELOW THE OUTBOARD - [SDR 2004FA0000398](https://openairdocs.org/sdr/2004FA0000398), Mar 17, 2004: STRAP. CRACKED. DURING AN ANNUAL INSPECTION THE BUTT WELDS IN THE LOWER MAIN SPAR REINFORCEMENT STRAP, APPROX 3.25 INCHES IB FROM EACH END OF THE REINFORCEMENT STRAP, DO NOT HA - [SDR 2004FA0000400](https://openairdocs.org/sdr/2004FA0000400), Mar 17, 2004: ATTACH BRACKET. CRACKED. DURING AN ANNUAL INSPECTION THE WELD JOINT THAT ATTACHES THE UPPER WING SKIN ATTACH BRACKET TO THE UPPER MAIN WING SPAR CENTER SECTION JUST ABOVE THE UPPER LT W - [SDR QC42002F00001](https://openairdocs.org/sdr/QC42002F00001), Nov 26, 2002: HOUSING. CRACKED. THE BENDIX DRIVE HOUSING CRACKED COMPLETELY THROUGH AND THE FORWARD BEARING SECTION FELL OFF THE AIRCRAFT. IAW LOG BOOKS, THIS STARTER HAS BEEN OVERHAULED TWICE - [SDR YBU2002F00000](https://openairdocs.org/sdr/YBU2002F00000), Nov 22, 2002: BRACE. CRACKED. PILOT REPORTED NORMAL LANDING. THEN LOST CONTROL OF AIRCRAFT. AIRCRAFT CAME TO REST OFF THE LT SIDE OF THE RUNWAY, LT MAIN GEAR COLLAPSED. LT MAIN GEAR, UPPER D - [SDR AUS20021238](https://openairdocs.org/sdr/AUS20021238), Oct 24, 2002: BOLT. BROKEN. (AUS) NOSE LANDING GEAR ACTUATOR REAR MAIN ATTACHMENT BOLT BROKEN INAREA OF SHAFT. - [SDR AUS20011280](https://openairdocs.org/sdr/AUS20011280), Nov 29, 2001: CONTROL CABLE. MISINSTALLED. (AUS) LT RUDDER CONTROL CABLE INCORRECTLY ROUTED UNDER SUPPORT BRACKET. CABLE RUBBING ON PULLEY SUPPORT BRACKET. ELEVATOR TRIM CABLE ALSO INCORRECTLY ROUTED AND - [SDR 20001220SH005](https://openairdocs.org/sdr/20001220SH005), Sep 23, 2000: GEAR. WORN. NYLON DRIVE GEAR WORN AND DECOMPOSED DUE TO WATERY CHEMICAL WITHIN MAGNETO CASE. COULD HAVE BEEN CAUSED BY A PRESSURE WASHER AFTER AN OIL CHANGE OR OTHER SERVIC - [SDR AU000555](https://openairdocs.org/sdr/AU000555), Feb 29, 2000: BOLT. SEPARATED. (AUS) NOSE LANDING GEAR RETRACTION RAM TO NOSE LANDING GEAR STRUT SEPARATED DUE TO BOLT, NUT, WASHER AND SPLIT PIN SECURING THE TWO ITEMS COMING LOOSE. - [SDR AU000179](https://openairdocs.org/sdr/AU000179), Feb 10, 2000: BOLT. BROKEN. (AUS) MAIN LANDING GEAR STRUT TRUNNION PIN RETAINING BOLT CRACKED. TRUNNION PIN ALSO WORN. - [SDR AU990822](https://openairdocs.org/sdr/AU990822), Jul 16, 1999: CRANKCASE. CRACKED. (AUS) CRANKCASE CRACKED. CAMSHAFT LOBES CRACKED. - [SDR AU990823](https://openairdocs.org/sdr/AU990823), Jul 16, 1999: CYLINDER. CRACKED. (AUS) TWO CYLINDERS CRACKED IN THE AREA OF THE EXHAUST PORTS. - [SDR AU970314](https://openairdocs.org/sdr/AU970314), Mar 24, 1997: MOUNT. BROKEN. (AUS) ENGINE MOUNT ASSEMBLY TUBE CRACKED AT LH NLG TRUNNION - TRUNNION PIN DEFORMED - AIRCRAFT USED FOR PILOT TRAINING - [SDR AU961014](https://openairdocs.org/sdr/AU961014), Jun 27, 1996: RELAY. MIS WIRED. (AUS) OVERVOLTAGE RELAY INCORRECTLY WIRED - 'BATTERY' AND 'LOAD' LEADS TRANSPOSED CAUSING OVERVOLTAGE RELAY TO MALFUNCTION - LOSS OF BATTERY VOLTAGE - LOGBOOK F ## STCs that may be installed (OpenAirDocs) (42) 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 SE04651CH](https://openairdocs.org/stc/SE04651CH): To allow use of l00R grade aviation fuel meeting Swift Fuel, LLC specification SPEC-l00R-22. Swift Fuels LLC - [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 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 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 SE7734SW](https://openairdocs.org/stc/SE7734SW): Modification of engine for operation with ethanol fuel. Shauck Dr Maxwell E Jr - [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 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.