# Lycoming TIGO-541-E1A

- Type: Engine model (FAA registry)
- Registry code: 42014
- Manufacturer (registry): LYCOMING
- Model: TIGO-541-E1A
- Engine type: Reciprocating
- Power: 425 hp
- Data sheet: [TCDS E19EA](https://openairdocs.org/tcds/E19EA) (OpenAirDocs)
- Holder: Lycoming Engines
- Installed in: 1 registered aircraft
- Page: https://openairdocs.org/engine/lycoming-tigo-541-e1a

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 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 2011-13-03](https://openairdocs.org/ad/2011-13-03): Turbocharger Turbine · Lycoming Engines LTO-360-E1A6D, O-540-L3C5D, TIGO-541-E1A and 20 more. Effective Jul 13, 2011
- [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 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 2002-12-07](https://openairdocs.org/ad/2002-12-07): Oil Filter Converter Plate Gasket or the Converter Plate Kit · Lycoming Engines HIO-360-E1AD, HIO-360-E1BD, HIO-360-F1AD and 95 more. Effective Jul 3, 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 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 83-22-04](https://openairdocs.org/ad/83-22-04): Injector Fuel Diaphragm Stem · Lycoming Engines AEIO-540-L1B5D, IO-540-AA1A5, IO-540-G1B5 and 30 more. Effective Nov 4, 1983
- [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

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 2011-15-10](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 2000-18-53](https://openairdocs.org/ad/2000-18-53) (historical): Oil Filter Converter Plate Gaskets · Textron Lycoming, AVCO AEIO-540, IO-360-A1B6D, IO-360-A1D6D and 73 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

## Information bulletins (advisory) (2)

- [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-14-13](https://openairdocs.org/saib/NE-14-13): Reciprocating Engine - Cylinder Mounting Studs. Issued Mar 24, 2014

## Registered aircraft (1)

- [N123JH](https://openairdocs.org/aircraft/N123JH): [Fti Group LLC](https://openairdocs.org/faa-owner/FTI%20GROUP%20LLC), [Norman, OK](https://openairdocs.org/faa-place/OK/Norman), S/N 31P-7630010

## 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 (55, newest 50)

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

- [SDR CA150331008](https://openairdocs.org/sdr/CA150331008), Mar 30, 2015: BLADE. DAMAGED. (CAN) PROPELLER HAD MECHANICAL DAMAGE FROM A PREVIOUS O/H BELOW SERVICEABLE LIMITS.
- [SDR CA130801007](https://openairdocs.org/sdr/CA130801007), Jul 29, 2013: MOUNT. BROKEN. (CAN) WHILE TROUBLESHOOTING A SNAG ON THE #1 HSI IT WAS NOTICED THAT THE FLIGHT CONTROLS WERE NOT COMPLETELY FREE AND CLEAR. THE ROLLER ATTACHMENT FITTING (P/N:
- [SDR CA091210009](https://openairdocs.org/sdr/CA091210009), Nov 27, 2009: DRUM. MISRIGGED. (CAN) ACFT DEPARTED FOR A POSITIONING FLIGHT, AFTER A MX EVENT. DURING TAKEOFF, PILOT NOTED EXCESSIVE FORCE REQUIRED TO OPERATE ELEVATOR TRIM SYS, AND POOR RESP
- [SDR EKI2007F00000](https://openairdocs.org/sdr/EKI2007F00000), Oct 10, 2007: ELBOW. WORN. RT ENGINE OIL SUPPLY FITTING TO TURBOCHARGER AND WASTEGATE PULLED OUT OF CASE ALLOWING OIL TO SPRAY ONTO TURBO AND WASTEGATE. THIS CAUSED AN OIL FIRE AFT OF THE
- [SDR 2007FA0001038](https://openairdocs.org/sdr/2007FA0001038), Aug 28, 2007: GASKET. WRONG PART. VISUALLY INSPECTED RT ENG AFTER RECOVERING THE A/C FROM A FIELD. FOUND MELTED WIRING AT NR 6 CYLINDER AND BEHIND IT. THE P-LEAD FOR THE RT MAG WAS MELTED AND WH
- [SDR CA061024002](https://openairdocs.org/sdr/CA061024002), Oct 20, 2006: ENGINE. MALFUNCTIONED. (CAN) AFTER TAKEOFF, RT ENGINE STARTED MAKING POWER FLUCTUATIONS WITH A RAPID EGT RISE. RT ENGINE WAS SHUT DOWN IN DESCENT AND AIRCRAFT RETURNED SAFELY. A MAINT
- [SDR CA061002006](https://openairdocs.org/sdr/CA061002006), Sep 28, 2006: LANDING GEAR. FAILED. (CAN) DEFECT: UNABLE TO PUT DOWN GEAR AND GET 3 GREEN LIGHTS. UPON 4TH TRY WHILE IN A HARD RT TURN, FINALLY GOT RT MAIN GEAR DOWN AND LOCKED. AIRCRAFT RETURNED 
- [SDR CA061002007](https://openairdocs.org/sdr/CA061002007), Sep 28, 2006: FUEL CONTROL. FAILED. (CAN) UNCONTROLLABLE POWER FLUCTUATIONS AT HIGH POWER SETTINGS ON LT ENGINE. FOUND FUEL CONTROL UNIT P/N 2524501-9 S/N 70084801 TO BE UNSERVICEABLE. REPLACED WI
- [SDR CA060811001](https://openairdocs.org/sdr/CA060811001), Aug 7, 2006: PANEL. SMOKE. (CAN) CIRCUIT BREAKER PANEL STARTED TO SMOKE AND SPARK DURING CRUISE AT 14000 FT. ELECTRICAL FIRE CHECKLIST WAS INITIATED AND DESCENDED TO 7500 FT. UPON COMPLET
- [SDR CA051219005](https://openairdocs.org/sdr/CA051219005), Dec 4, 2005: GPS. MALFUNCTIONED. THE GPS SYSTEM WENT THROUGH NORMAL SELF-TEST AND DID NOT FLAG AS INOP. HOWEVER, THE TRACKS DISPLAYED BETWEEN WAYPOINTS WERE INCORRECT. UPON FURTHER INVESTIGATIO
- [SDR CA060119001](https://openairdocs.org/sdr/CA060119001), Sep 9, 2005: GEAR. FAILED. (CAN) ON SHUTDOWN, PILOT HEARD A REPETITIVE SOUND, FROM THE LT ENGINE. INVESTIGATION SHOWED THE PROP GEAR HAD TEETH MISSING. EVIDENCE, METAL TEETH PIECES IN OIL
- [SDR AUS20031060](https://openairdocs.org/sdr/AUS20031060), Oct 16, 2003: CLAMP. WRONG PART. (AUS) ENGINE EXHAUST TURBOCHARGER INTERCOOLER DUCT HOSE CLAMP INCORRECTLY TORQUED FOLLOWING MAINTENANCE. HOSE PARTED DURING FLIGHT.
- [SDR CA030709009](https://openairdocs.org/sdr/CA030709009), Jun 16, 2003: CLUTCH. UNSERVICEABLE. (CAN) THE RIVETS ON THE AIR CONDITIONING CLUTCH ASSEMBLY FAILED. THIS ALLOWED TWO OF THE THREE BRACKETS THAT CONNECT THE OUTER RING TO THE INNER CORE, EACH ABOU
- [SDR EKI2002F00000](https://openairdocs.org/sdr/EKI2002F00000), Dec 4, 2001: PUMP. INOPERATIVE. MFG OVERHAULED SUBMERSABLE FUEL PUMP FOR RIGHT MAIN FUEL TANK QUIT WORKING AFTER 91.6 HOURS 3 MONTHS.
- [SDR 2001FA0000549](https://openairdocs.org/sdr/2001FA0000549), Sep 21, 2001: ADAPTER. BROKEN. FLANGE ON LEFT ENGINE OUTBOARD ADAPTER BROKE OFF OF ADAPTER. EXHAUST GASES LEAKED FROM SYSTEM CAUSING TURBOCHARGER OUTPUT TO DROP. PILOT SHUT DOWN ENGINE AND RE
- [SDR CA010209003](https://openairdocs.org/sdr/CA010209003), Feb 9, 2001: ENGINE. FAILED. (CAN) ENGINE LOSSED MANIFOLD PRESSURE FOLLOWED BY LOSS OF OIL PRESSURE. VISUAL INSPECTION REVEALS CRACKED CASE.
- [SDR 20000728SH004](https://openairdocs.org/sdr/20000728SH004), Jul 3, 2000: CRANKSHAFT. BROKEN. NR 4 COUNTERWEIGHT DEPARTED CRANKSHAFT AND PUNCHED HOLE IN TOP OF CASE AFTER TAKEOFF. RETURNED TO PHI AND LANDED SAFELY. SUBMITTER STATED THIS APPEARS TO BE A C
- [SDR 20000601SH006](https://openairdocs.org/sdr/20000601SH006), May 9, 2000: BUSHING. FAILED. PILOT EXPERIENCED ALTERNATOR FAILURE ON LT ENGINE IN-FLIGHT. UPON INSPECTION AFTER LANDING, FOUND LT SIDE OF AIRCRAFT COVERED IN OIL AND LT ALTERNATOR LYING INS
- [SDR 20000613SH024](https://openairdocs.org/sdr/20000613SH024), May 9, 2000: BUSHING. FAILED. PILOT EXPERIENCED ALTERNATOR FAILURE ON LT ENGINE IN-FLIGHT. UPON INSPECTION AFTER LANDING, FOUND LT SIDE OF AIRCRAFT COVER IN OIL AND LT ALTERNATOR LYING INSID
- [SDR AU000068](https://openairdocs.org/sdr/AU000068), Jan 30, 2000: GEARBOX. FAILED. (AUS) ENGINE GEARBOX SUSPECT FAILURE.
- [SDR AU000164](https://openairdocs.org/sdr/AU000164), Jan 30, 2000: GEARBOX. FAILED. (AUS) ENGINE SUSPECT GEARBOX FAILURE.
- [SDR 99ZZZX3677](https://openairdocs.org/sdr/99ZZZX3677), Sep 9, 1999: CRANSHAFT. CRACKED. REMOVED ENGINE DUE TO FERROUS METAL IN FILTER. FOUND CAMSHAFT WORN AND LIFTER SPALLED. UPON FURTHER INSPECTION, FOUND NR 4 COUNTERWEIGHT ATTACHMENT ON CRANKSHAF
- [SDR 99ZZZX3664](https://openairdocs.org/sdr/99ZZZX3664), Sep 8, 1999: CRANKSHAFT. FAILED. COUNTERWEIGHT ON NR 3 ATTACH PORT ON CRANKSHAFT CAME OFF. CRANKSHAFT ATTACH PORTS BOTH FAILED. AIRCRAFT RETURNED TO AIRPORT AND LANDED SAFELY.
- [SDR 99ZZZX3676](https://openairdocs.org/sdr/99ZZZX3676), Sep 7, 1999: CAMSHAFT. SPALLED. FOUND FERROUS METAL IN FILTER AND SCREEN DURING OIL CHANGE. PULLED SUMP, FOUND CAMSHAFT LOBES AND LIFTERS WORN AND SPALLED.
- [SDR CA990728088](https://openairdocs.org/sdr/CA990728088), Jul 11, 1999: CRANKSHAFT. SEPARATED. (CAN) CRANKSHAFT AT CONNECTING ROD DAMAGED 25 HOURS POST-OVERHAUL. X-RAYS WERE TAKEN AT THAT TIME.
- [SDR CA990907073](https://openairdocs.org/sdr/CA990907073), Jul 11, 1999: CRANKSHAFT. BROKEN. (CAN)CRANKSHAFT SEPARATED. CRANKSHAFT X-RAYED AT PREVIOUS OVERHAUL.
- [SDR AU990400](https://openairdocs.org/sdr/AU990400), Apr 23, 1999: GEAR. STRIPPED. (AUS) LEFT MAGNETO NYLON DISTRIBUTOR GEAR HAD THREE TEETH MISSING.
- [SDR AU990399](https://openairdocs.org/sdr/AU990399), Feb 19, 1999: LINER. CRACKED. (AUS) CABIN HEATER INNER COMBUSTION CAN CRACKED.
- [SDR 98ZZZX3426](https://openairdocs.org/sdr/98ZZZX3426), Sep 3, 1998: SWITCH. FAILED. UNIT REMOVED FOR C/W FAR 91-207D. FOUND INERTIA SWITCH INOPERATIVE. SUBMITTER STATES THIS IS THE THIRD UNIT TO FAIL THE TEST. UNIT IS ONLY 2 YEARS OLD.
- [SDR 98ZZZX3026](https://openairdocs.org/sdr/98ZZZX3026), Aug 6, 1998: BRACKET. CRACKED. FOUND TURBO UPPER AFT MOUNT BRACKET CRACKED AT WELD. THIS WAS A HARD AREA TO SEE AND SHOULD BE LOOKED AT EVERY INSPECTION.
- [SDR CA980804028](https://openairdocs.org/sdr/CA980804028), Jul 22, 1998: GEARBOX. SEPARATED. (CAN) NOSE GEAR BOX ASSEMBLY AND PROPELLER BROKE FREE OF THE ENGINE IN FLIGHT AND FELL AWAY. NO FURTHER AIRCRAFT DAMAGE, THE AIRCRAFT LANDED SAFELY ON THE REMAI
- [SDR CA980416009](https://openairdocs.org/sdr/CA980416009), Apr 6, 1998: DRAIN LINE. CHAFING. (CAN) FUEL DRAIN LINE OF NR 2 CYLINDER RUBBED (CHAFED) AGAINST THE PROPELLER ACCUMULATOR AND RISKED RUPTURING THE DRAIN INJECTION LINE. THIS LINE IS LESS THAN 4
- [SDR 98ZZZX523](https://openairdocs.org/sdr/98ZZZX523), Jan 20, 1998: LIFTER. SPALLED. NR 4 CYLINDER EXHAUST LIFTER SPALLED SEVERELY CAUSING DAMAGE TO THE CAMSHAFT LOBE. ALL OTHER LIFTERS LOOKED GOOD. ENGINE WAS FACTORY OVERHAULED 7/97. FOUND META
- [SDR 97ZZZX4206](https://openairdocs.org/sdr/97ZZZX4206), Sep 9, 1997: BEARING. FLAKED. ENGINE REMOVED AFTER FINDING BEARING MATERIAL IN OIL SCREEN. DISASSEMBLED, FOUND ABOUT 1.5 SQUARE INCHES OF MATERIAL FLAKED OFF OF BEARING. SUSPECT POOR BOND TO
- [SDR 97ZZZX3868](https://openairdocs.org/sdr/97ZZZX3868), Aug 13, 1997: PUMP. INOPERATIVE. LEFT MAIN TRANSFER PUMP OVERHAULED BY 2-14-96, INSTALLED 7-8-96. PUMP INOPERABLE. SENDING TO RAPCO FOR DETERMINATION OF PROBLEM. SHORT SERVICE LIFE.
- [SDR 97ZZZX3163](https://openairdocs.org/sdr/97ZZZX3163), Jun 30, 1997: STUD. FAILED. FOUR CYLINDER ATTACH STUDS ON NR 3 CYLINDER FOUND BROKEN FOLLOWING ENGINE RUNNING ROUGH. FOUND NO EVIDENCE OF DETONATION ON TEAR DOWN.
- [SDR 97ZZZX3151](https://openairdocs.org/sdr/97ZZZX3151), Jun 25, 1997: VALVE SEAT. LOOSE. LEFT ENGINE RUNNING ROUGH. CHECKED COMPRESSION, 0/80, NR 3 CYLINDER. CHECKED WITH BORESCOPE, FOUND EXHAUST VALVE SEAT LOOSE. REMOVED CYLINDER ASSY WHICH WAS OVE
- [SDR AU971332](https://openairdocs.org/sdr/AU971332), Jun 20, 1997: CYLINDER. CRACKED. (AUS) ENGINE CYLINDER CRACKED FROM INDUCTION TUBE FACE TOWARDS THE INLET VALVE SEAT. CRACK LENGTH 31.75MM (1.25IN)
- [SDR AU971333](https://openairdocs.org/sdr/AU971333), May 2, 1997: CYLINDER. CRACKED. (AUS) ENGINE CYLINDER CRACKED FROM INDUCTION TUBE MOUNT FACE TOWARDSTHE INLET VALVE SEAT. CRACK LENGTH 25.4MM (1IN).
- [SDR 97ZZZX2337](https://openairdocs.org/sdr/97ZZZX2337), Apr 29, 1997: DIAPHRAGM VALVE. LOOSE. SCREW THAT SECURES NEEDLE VALVE TO DIAPHRAGM IN FUEL PRESSURIZATION VALVE CAME LOOSE ALLOWING NEEDLE VALVE TO COME LOOSE WHICH SHUT ENGINE DOWN. SCREW STILL HAD
- [SDR 97ZZZX2050](https://openairdocs.org/sdr/97ZZZX2050), Apr 22, 1997: CYLINDER. CRACKED. DURING MAINTENANCE WITH INTAKE PIPE REMOVED, INTAKE GUIDE WAS FOUND MOVING WITH THE VALVE. CYLINDER REPLACED, TEAR DOWN REPORT REQUESTED FROM ENGINE OVERHAULER.
- [SDR 97ZZZX2051](https://openairdocs.org/sdr/97ZZZX2051), Apr 22, 1997: CYLINDER. CRACKED. DURING ROUTINE MAINTENANCE, NR 1 AND NR 3 CYLINDERS WERE FOUND CRACKED IN THE INTAKE PORT AREA. CRACKS WERE BETWEEN FIRST AND SECOND COOLING FINS FROM THE TOP A
- [SDR 97ZZZX2052](https://openairdocs.org/sdr/97ZZZX2052), Apr 22, 1997: CYLINDER. CRACKED. DURING ROUTINE MAINTENANCE, NR 1 AND NR 3 CYLINDERS WERE FOUND CRACKED IN THE INTAKE PORT AREA. CRACKS WERE BETWEEN FIRST AND SECOND COOLING FINS FROM THE TOP A
- [SDR 97ZZZX817](https://openairdocs.org/sdr/97ZZZX817), Feb 10, 1997: CRANKSHAFT. FRACTURED. AT OIL CHANGE 7 FERROUS PIECES .430 INCH LONG .095 INCH THICK AND BETWEEN .125 INCH AND .250 INCH WIDE WERE FOUND IN SUCTION SCREEN ALONG WITH ALUMINUM SHAVINGS
- [SDR 96ZZZX6140](https://openairdocs.org/sdr/96ZZZX6140), Dec 5, 1996: GEAR TOOTH. BROKEN. ENGINE SOUNDED ROUGH ON SHUT DOWN. FOUND EXCESSIVE PLAY IN PROPELLER. DRAINED OIL, PULLED SUCTION SCREEN, FOUND PIECE OF TOOTH IN SCREEN. ENGINE TORN DOWN, FOUN
- [SDR 96ZZZX6082](https://openairdocs.org/sdr/96ZZZX6082), Nov 22, 1996: VALVE SEAT. LOOSE. ENGINE RUN-UP AND ROUGH. CHECKED COMPRESSION, FOUND NR 5 CYLINDER 0/80. REMOVED CYLINDER, FOUND EXHAUST VALVE SEAT LOOSE IN HEAD FOLLOWING VALVE DURING VALVE MO
- [SDR 96ZZZX6099](https://openairdocs.org/sdr/96ZZZX6099), Nov 22, 1996: COUNTER WEIGHT. CRACKED. PULLED SUCTION SCREEN FOLLOWING OIL CHANGE, FOUND BROKEN PIECE OF SNAP RING, P/N 71906. REMOVED SUMP, FOUND COUNTER WT NR 5 SNAP RING AFT SIDE INBOARD BROKE AND
- [SDR 96ZZZX5901](https://openairdocs.org/sdr/96ZZZX5901), Nov 19, 1996: DOWEL. LOOSE. FOUND DOWEL FOR CRANKSHAFT SPLINE BUSHING IN SUMP AT OIL SCREEN. UPON TEAR DOWN FOUND ONLY 1 OF 3 DOWELS STILL IN CRANKSHAFT. BUSHING WAS STARTING TO TWIST IN B
- [SDR 96ZZZX4142](https://openairdocs.org/sdr/96ZZZX4142), Apr 18, 1996: CYLINDER. CRACKED. HOBBS - 3,213.6 HOURS. OIL APPEARED AROUND NR 1 CYLINDER PUSH ROD TUBES. SEALS REPLACED, GROUND CHECK OPS GOOD. AFTER FLIGHT, OIL APPEARED AGAIN. REMOVED NR 1 C
- [SDR 95ZZZX6767](https://openairdocs.org/sdr/95ZZZX6767), Oct 31, 1995: CYLINDER. BOSS BROKEN. EXHAUST VALVE INBOARD ROCKER ARM SHAFT BOSS BROKEN OFF CYLINDER ASSY. ROCKER ARM AND SHAFT LIFTED UP CRACKING CYLINDER ON OUTBOARD SIDE WHERE SHAFT PASSES THROU

All 55: https://openairdocs.org/engine/lycoming-tigo-541-e1a/reports.md

## STCs that may be installed (OpenAirDocs) (15)

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 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 SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings. Continental Motors, Inc
- [STC SE00584DE](https://openairdocs.org/stc/SE00584DE): Installation of modified Oil Filter Adapter, an increased opening pressure spring for filter bypass, and modified filter stud. Centri-Lube Technologies LLC
- [STC SE02436AT](https://openairdocs.org/stc/SE02436AT): Installation of 200F series fuel pump assembly. Kelly Aerospace Energy Systems LLC
- [STC SE765GL](https://openairdocs.org/stc/SE765GL): Installation of a fuel flow transducer. Shadin Avionics
- [STC SE1779NM](https://openairdocs.org/stc/SE1779NM): Installation of Precise Flight, Inc. Standby Vacuum System SVS III. Precise Flight Inc
- [STC SE3800NM](https://openairdocs.org/stc/SE3800NM): Installation of American Aviation intercooler and associated systems. American Aviation Inc
- [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 SE452NE](https://openairdocs.org/stc/SE452NE): Installation and usage of 'Mobil AV 1' aviation oil. Mobil Research & Development Corp
- [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
- [STC SE128NE](https://openairdocs.org/stc/SE128NE): Use of AMS/OIL 15W 50 synthetic piston aircraft oil in Avco engines. AMS/OIL

---
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.