# Lycoming O-360-E1A6D - Type: Engine model (FAA registry) - Registry code: 42305 - Manufacturer (registry): LYCOMING - Model: O-360-E1A6D - Engine type: Reciprocating - Power: 180 hp - Data sheet: [TCDS E-286](https://openairdocs.org/tcds/E-286) (OpenAirDocs) - Holder: Lycoming Engines - Installed in: 7 registered aircraft - Page: https://openairdocs.org/engine/lycoming-o-360-e1a6d 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 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 2012-03-07](https://openairdocs.org/ad/2012-03-07): Carburetor · Lycoming Engines GO-435, GO-435-C2 (O-435-17), GO-435-C2A and 389 more. Effective Mar 27, 2012 - [AD 2006-06-16](https://openairdocs.org/ad/2006-06-16): Crankshaft · Lycoming Engines AEIO-360-A1B6, AEIO-360-A1E6, IO-360-A1B6 and 18 more. Effective Apr 27, 2006 - [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 98-02-08](https://openairdocs.org/ad/98-02-08): Crankshaft · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 216 more. Effective Mar 30, 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 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 90-04-06 R1](https://openairdocs.org/ad/90-04-06-R1): Propeller Governor External Oil Line · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 427 more. Effective May 28, 1991 - [AD 87-10-06 R1](https://openairdocs.org/ad/87-10-06-R1): Rocker Arm Assembly · Lycoming Engines IO-360-B4, IVO-360-A1A, O-340-A1A and 243 more. Effective Sep 1, 1989 - [AD 89-04-02](https://openairdocs.org/ad/89-04-02): Carburetors · Continental Motors O-470-11, O-470-11-CI, O-470-11B and 175 more. Effective Mar 8, 1989 - [AD 80-04-03 R2](https://openairdocs.org/ad/80-04-03-R2): Hydraulic Lifter · Lycoming Engines LO-360-E1A6D, LTO-360-E1A6D, O-320-H1AD and 7 more. Effective Apr 25, 1988 - [AD 80-14-07](https://openairdocs.org/ad/80-14-07): Upper Exhaust Valve Spring Seats · Lycoming Engines LO-360-E1A6D, O-320-H1AD, O-320-H1BD and 5 more. Effective Jul 7, 1980 - [AD 79-10-03 R2](https://openairdocs.org/ad/79-10-03-R2): Engine Mounting Bracket Attaching Bolts · Lycoming Engines LO-360-E1A6D, O-320-H2AD and O-360-E1A6D. Effective Jul 1, 1980 - [AD 80-06-05](https://openairdocs.org/ad/80-06-05): Magnetos · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 254 more. Effective Mar 28, 1980 - [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 69-24-03](https://openairdocs.org/ad/69-24-03): Carburetors · Continental Motors A-65-1, A-65-12, A-65-12F and 321 more. Effective Nov 29, 1969 - [AD 67-01-04](https://openairdocs.org/ad/67-01-04): Oil Filters · Full flow oil filter (Superior Flow STC SA401SW or 2 others). Effective Jan 2, 1967 - [AD 63-22-03](https://openairdocs.org/ad/63-22-03): Carburetors · Continental Motors GO-300-A, GO-300-B, GO-300-C and 143 more. Effective Dec 2, 1963 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 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 ## Information bulletins (advisory) (12) - [SAIB NE-06-31R6](https://openairdocs.org/saib/NE-06-31R6): Engine Lubricating Oils. Issued Sep 26, 2022 - [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-06-31R5](https://openairdocs.org/saib/NE-06-31R5) (historical): Engine Lubricating Oils. Issued Oct 19, 2011 - [SAIB NE-06-31R4](https://openairdocs.org/saib/NE-06-31R4) (historical): Engine Lubricating Oils. Issued Jul 6, 2011 - [SAIB NE-08-26R3](https://openairdocs.org/saib/NE-08-26R3): Magneto/Distributor. Issued Mar 31, 2011 - [SAIB NE-06-31R3](https://openairdocs.org/saib/NE-06-31R3) (historical): Engine Lubricating Oils. Issued Jul 22, 2009 - [SAIB NE-06-31R2](https://openairdocs.org/saib/NE-06-31R2) (historical): Engine Lubricating Oils. Issued Apr 29, 2009 - [SAIB NE-08-26R1](https://openairdocs.org/saib/NE-08-26R1) (historical): Dual Magnetos. Issued Jul 8, 2008 - [SAIB NE-08-32](https://openairdocs.org/saib/NE-08-32) (historical): Propeller Governor Set Screw. Issued Jul 3, 2008 ## Registered aircraft (7) - [N209PT](https://openairdocs.org/aircraft/N209PT): [Silver Express DBA](https://openairdocs.org/faa-owner/SILVER%20EXPRESS%20DBA), [Miami, FL](https://openairdocs.org/faa-place/FL/Miami), built 1979, S/N 44-7995239 - [N302VM](https://openairdocs.org/aircraft/N302VM): [Wifa (Washington International Flight Academy) LLC](https://openairdocs.org/faa-owner/WIFA%20(WASHINGTON%20INTERNATIONAL%20FLIGHT%20ACADEMY)%20LLC), [Gaithersburg, MD](https://openairdocs.org/faa-place/MD/Gaithersburg), built 1979, S/N 44-7995322 - [N356HA](https://openairdocs.org/aircraft/N356HA): [Hillsboro Aero Academy LLC](https://openairdocs.org/faa-owner/HILLSBORO%20AERO%20ACADEMY%20LLC), [Hillsboro, OR](https://openairdocs.org/faa-place/OR/Hillsboro), built 1978, S/N 44-7995004 - [N357CF](https://openairdocs.org/aircraft/N357CF): [Coast Flight Training And Management Inc](https://openairdocs.org/faa-owner/COAST%20FLIGHT%20TRAINING%20AND%20MANAGEMENT%20INC), [San Diego, CA](https://openairdocs.org/faa-place/CA/San%20Diego), built 1979, S/N 447995091 - [N39KY](https://openairdocs.org/aircraft/N39KY): [Yang Chi](https://openairdocs.org/faa-owner/YANG%20CHI), [Lafayette, CO](https://openairdocs.org/faa-place/CO/Lafayette), built 1979, S/N 447995304 - [N551MD](https://openairdocs.org/aircraft/N551MD): [Vero Technical Support Inc](https://openairdocs.org/faa-owner/VERO%20TECHNICAL%20SUPPORT%20INC), [Pensacola, FL](https://openairdocs.org/faa-place/FL/Pensacola), built 1978, S/N 44-7995112 - [N552MD](https://openairdocs.org/aircraft/N552MD): [Hillsboro Aero Academy LLC](https://openairdocs.org/faa-owner/HILLSBORO%20AERO%20ACADEMY%20LLC), [Hillsboro, OR](https://openairdocs.org/faa-place/OR/Hillsboro), built 1978, S/N 447995008 ## NTSB investigations (1) 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 ERA15FA326](https://openairdocs.org/ntsb/ERA15FA326), Aug 27, 2015: Piper PA44 (N553MD), Houlton, ME, destroyed, 1 fatal. Probable cause: The pilot's descent below the published minimum descent altitude in night instrument meteorological conditions without visual contact with the runway environment, which resulted in a collision with… ## 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 20250324005709I](https://openairdocs.org/incident/20250324005709I), Mar 24, 2025: Piper PA-44-180 (N551MD), Pensacola, FL, Minor damage. Maintenance personnel failed to reinstall all right-wing tip cap lower fasteners following maintenance and returned aircraft to service. Pilot failed to… - [Incident 20240804011249I](https://openairdocs.org/incident/20240804011249I), Aug 4, 2024: Piper PA-44-180 (N552MD), Madras, OR, Minor damage. While in the pattern at S33, instrutor and student started practice for engine failure below 3000' while on the crosswind leg. Ran through all checklists for… - [Incident 20240422009139I](https://openairdocs.org/incident/20240422009139I), Apr 22, 2024: Piper PA-44-180 (N302VM), Gaithersburg, MD, Minor damage. [privacy data omitted] Departed kgai, rwy 32. After departure on the upwind leg, the right wingtip separated from the aircraft and landed in the montgomery… - [Incident 20220918017099I](https://openairdocs.org/incident/20220918017099I), Sep 18, 2022: Piper SEMINOLE (N302VM), Gaithersburg, MD, Minor damage. Upon touchdown nose landing gear collapsed. Aviator had three green and one in the mirror on final and verified several times. No abnormal indications were… - [Incident 20191204021129I](https://openairdocs.org/incident/20191204021129I), Dec 4, 2019: Piper PA-44-180 (N209PT), Brooksville, FL, Minor damage. On December 04/2019, at 1851 EST (2351 z), while on an instructional flight, the Piper PA-44-180, N209PT, registered to "pilot training center LLC" (miami,… - [Accident 20150828021389A](https://openairdocs.org/incident/20150828021389A), Aug 28, 2015: Piper PA-44-180 (N553MD), Houlton, ME, Destroyed, 1 fatal. During final approach to runway 05 at hul, the pilot initially impacted the tree line approximately 1.3 miles from the approach end of runway 05 continuing… ## Service difficulty reports (27) As reported by operators and repair stations, by the model named in the report. - [SDR CA190417001](https://openairdocs.org/sdr/CA190417001), Apr 17, 2019: CAMSHAFT. CORRODED. (CAN) CAMSHAFT LW16513 AND TAPPETS LW16812 FOUND PITTED WHEN OIL CHANGE AND FILTER INSPECTION CARRIED OUT AD80-0403R2 PAR.B (TC# 20190417001) - [SDR CA190405011](https://openairdocs.org/sdr/CA190405011), Apr 5, 2019: FITTING. CRACKED. (CAN) DURING SCHEDULED 500HR INSPECTION THE END OF THE RUDDER FITTING WHICH ATTACHES THE BOTTOM OF THE RUDDER TO THE FIN AND INCLUDES THE RUDDER STOPS WAS FOUND - [SDR 2016FA0000663](https://openairdocs.org/sdr/2016FA0000663), Dec 16, 2016: ADAPTER. BROKEN. LEFT ENGINE OIL FILTER ADAPTER CAST ASSEMBLY BROKE AT THE FITTING WHERE THE OIL CONVERTER PLATE SCREWS IN. THIS ALLOWED THE OIL FILTER ASSEMBLY TO DROP TO THE S - [SDR CA160314003](https://openairdocs.org/sdr/CA160314003), Mar 11, 2016: AIR BOX. FAILED. (CAN) INNER MOVING BAFFLE FLAP INSIDE THE CARB AIR BOX THAT CONTROLS WHICH SIDE OF THE AIRFLOW THE CARBURETOR USES WORK HARDENED AND BROKE OFF OF THE SHAFT RESU - [SDR 2016FA0000089](https://openairdocs.org/sdr/2016FA0000089), Feb 16, 2016: MOUNT. DAMAGED. DURING ANNUAL INSPECTION FOUND THE ENGINE MOUNT TUBING HAD CHAFE DAMAGE FROM CONTACT WITH THE THROTTLE CABLE DUE TO IMPROPER ROUTING/CLAMPING OF THE CABLE. - [SDR CA151106001](https://openairdocs.org/sdr/CA151106001), Nov 5, 2015: BEARING. FAILED. (CAN) AFTER SCHEDULED OUT OF PHASE OIL AND FILTER CHANGE GROUND RUN. NOTICED LT ENGINE PROPELLER HARD TO MOVE AND NO FORE AND AFT PLAY IN CRANKSHAFT. ENGINE REM - [SDR CA150630012](https://openairdocs.org/sdr/CA150630012), Jun 29, 2015: BOLT. CORRODED. (CAN) UPON DIS-ASSEMBLY OF THE RT MAIN LANDING GEAR TRUNNION, THE BOLT THAT HOLDS THE MAIN GEAR RETAINER ASSY IN PLACE IN THE TRUNNION WAS REMOVED AND FOUND EXT - [SDR FQAR20150512035](https://openairdocs.org/sdr/FQAR20150512035), May 12, 2015: ANGLE. CRACKED. DURING A PROGRESSIVE INSPECTION, AN ANGLE IN THE RT WING WAS FOUND CRACKED BEHIND THE LANDING GEAR SIDE BRACE FITTING. THE CRACK COULD JUST BARELY BE SEEN BEHIN - [SDR FQAR20150512033](https://openairdocs.org/sdr/FQAR20150512033), May 11, 2015: DOWNLOCK SWITCH. SEPARATED. ON APPROACH, AS THE GEAR WAS LOWERED THE PILOTS NOTED THERE WAS NO DOWN-AND-LOCKED INDICATION FOR THE RT MAIN GEAR. THE PILOTS ABORTED THE APPROACH AND RAN CHEC - [SDR FQAR20150422029](https://openairdocs.org/sdr/FQAR20150422029), Apr 22, 2015: COTTER PIN. MISSING. ON PREFLIGHT, THE PILOT NOTED THAT A COTTER PIN WAS MISSING FROM THE NLG FORWARD DRAG LINK BOLT, ILLUSTRATED AS ITEM 69D, FIGURE 21. PREVIOUS FLIGHT CREWS DID N - [SDR CA150401001](https://openairdocs.org/sdr/CA150401001), Mar 31, 2015: ATTACH FITTING. CRACKED. (CAN) DURING ROUTINE INSPECTION, MECHANIC NOTICED A CRACK IN THE LOWER ATTACHMENT OF THE RUDDER TO ACFT. THE CRACKED AREA IS WHERE THE RUDDER PIVOTS AND CONTACT - [SDR 2015FA0000054](https://openairdocs.org/sdr/2015FA0000054), Jan 15, 2015: LANDING GEAR. COLLAPSED. LANDING GEAR COLLAPSED UPON LANDING ROLLOUT. MECHANICAL FAILURE. - [SDR CA141022008](https://openairdocs.org/sdr/CA141022008), Oct 21, 2014: BOLT. MISSING. (CAN) DURING TROUBLE SHOOTING OF THE #2 ENGINE MAINTENANCE DISCOVERED THAT A HEX BOLT WAS MISSING FROM THE #2 STARTER WHERE THE DRIVE END ASSEMBLY JOINS THE MOT - [SDR ECPR2014061158901](https://openairdocs.org/sdr/ECPR2014061158901), Feb 18, 2014: SPAR. CORRODED. CORROSION FOUND ON THE BOTTOM CAP OF THE LT WING SPAR ASSY, AT APPROXIMATLEY WING STA 36, JUST INBD OF THE 67071-00 LT LANDING GEAR ACTUATOR ATTACH BRACKET. IN - [SDR CA140218001](https://openairdocs.org/sdr/CA140218001), Feb 13, 2014: WIRE. BROKEN. (CAN) ACFT HAD NO LT GEAR INDICATION. A MANUAL GEAR EXTENSION WAS CARRIED OUT & THE ACFT LANDED SAFELY. THE ACFT WAS TOWED TO THE HANGER AS A PRECAUTION. UPON I - [SDR CA131123001](https://openairdocs.org/sdr/CA131123001), Nov 22, 2013: PUMP. FAILED. (CAN) LANDING GEAR WOULD NOT EXTEND USING ELECTRIC HYDRAULIC PUMP, EMERGENCY GEAR EXTENSION USED, GIVING 3 GREEN. ACFT LANDED SAFELY. FOUND ELECTRIC HYDRAULIC P - [SDR 2013FA0000709](https://openairdocs.org/sdr/2013FA0000709), Sep 30, 2013: BOLT. BENT. NOSE GEAR COLLAPSED ON LANDING. FOUND NOSE GEAR PIVET BOLT FOR DOWNLOCK, PN 502-341 BENT. PN 86275-03, DOWNLOCK MAY BE BENT. THIS PART INCLUDES THE HOOK. THE LE - [SDR CA130115007](https://openairdocs.org/sdr/CA130115007), Dec 21, 2012: STARTER. FAILED. (CAN) UPON START UP OF LT ENGINE STARTER FAILED ON FIRST. STARTER FAILURE TROUBLESHOT TO DETERMINE THE CAUSE AND PROBLEM OF FAILURE. FAILURE FOUND TO BE STARTER - [SDR ECPR201204130001](https://openairdocs.org/sdr/ECPR201204130001), Apr 10, 2012: THROTTLE CABLE. DETACHED. ON CLIMBOUT, 600-700FT AGL, INSTRUCTOR PILOT (IP) REDUCED RT THROTTLE TO IDLE TO SIMULATE ENGINE FAILURE. STUDENT PILOT (SP) SIMULATED FEATHERING RT PROPELLER A - [SDR ECPR2014061150605](https://openairdocs.org/sdr/ECPR2014061150605), Dec 5, 2011: SPAR. CORRODED. LT WING STA 56.0, UPPER OTBD QUADRANT OF AN ELECTRICAL WIRE PASSING THROUGH HOLE IN THE WING SPAR WEB WAS FOUND CORRODED. PASS THROUGH HOLE, WHICH IS IN THE LAN - [SDR CA111116011](https://openairdocs.org/sdr/CA111116011), Oct 21, 2011: DISTRIBUTOR BLK. FAILED. (CAN) MAGNETO NOT FUNCTIONING AFTER ENGINE START. DISASSEMBLED MAG, NOTED DISTRIBUTOR BLOCK BURNED AND MELTED. MAGNETO FILLED WITH YELLOW POWDER RESIDUE. EVIDEN - [SDR 2009FA0000398](https://openairdocs.org/sdr/2009FA0000398), May 4, 2009: STARTER. MALFUNCTIONED. AFTER SHUTTING DOWN THE LT ENGINE DURING A TRAINING FLIGHT, THE STARTER GEAR WOULD NOT ENGAGE DURING THE RESTART PROCEDURE. - [SDR CA090921002](https://openairdocs.org/sdr/CA090921002), Mar 18, 2009: TRUNNION. CRACKED. (CAN) FIRST 100 HR FOLLOWING IMPORTATION OF AIRCFRAFT. AIRCRAFT REBUILT FOLLOWING DAMAGE FROM TORNADO PRIOR TO IMPORT. CRACKS EVIDENT VISUALLY 100 HRS AFTER REB - [SDR CA081006004](https://openairdocs.org/sdr/CA081006004), Oct 3, 2008: GROMMET. MISSING. (CAN) DURING A DEFECT RECTIFICATION ON OUR OTHER ACFT, IT WAS FOUND THAT THE LWR GROMMET AND BUSHING P/N 453-991 WAS MISSING ON THE LT ENGINE CARB HEAT BOX. THI - [SDR 2008FA0000066](https://openairdocs.org/sdr/2008FA0000066), Jan 22, 2008: FITTING. FAILED. PRIOR TO COMPLIANCE WITH FAR 91.411, A STATIC SYSTEM CHECK WAS CONDUCTED. UNDER TEST SYSTEM SHOWED APPROXIMATELY 100 FPM DESCENT RATE. INSPECTION REVEALED THE 9 - [SDR CA070823013](https://openairdocs.org/sdr/CA070823013), Aug 10, 2007: CONNECTOR. BROKEN. (CAN) WIRE FOUND BROKEN ON DOWNLIMIT SWITCH CONNECTOR. (TC NR 20070823013) - [SDR CA070425004](https://openairdocs.org/sdr/CA070425004), Apr 5, 2007: TRUNNION. CRACKED. (CAN) DURING A PREFLIGHT INSP THE PILOT NOTICED THE NOSE GEAR TRUNNION CRACKED. THE CRACK STARTS FROM THE UPPER PART OF THE CASTING AND GOES DOWN HALFWAY AT WHI ## STCs that may be installed (OpenAirDocs) (32) 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 SE208SO](https://openairdocs.org/stc/SE208SO): Installation of ice indicator in the carburetor. LegacySTC.com. Lists O-360 Series - [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 SE2390CE](https://openairdocs.org/stc/SE2390CE): Installation of B & C Speciality Products. B & C Specialty Products Inc. Lists O-360 Series - [STC SE03232CH](https://openairdocs.org/stc/SE03232CH): Installation of Engine Preheat Kit p/n TA2925-1 for 115 volt application. Hartzell Propeller Inc - [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 SE4408SW](https://openairdocs.org/stc/SE4408SW): Miscellaneous engine cylinder replacement parts. Continental Motors, Inc. Lists O-360 Series - [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings. Continental Motors, Inc. Lists O-360 Series - [STC SE00218NY](https://openairdocs.org/stc/SE00218NY): Replacement of Lycoming starter with SKY-TEC 12 volt starter installed. Hartzell Engine Technologies, LLC. Lists O-360 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 O-360 Series - [STC SE2901NM](https://openairdocs.org/stc/SE2901NM): Lycoming valve cover gasket. Real Gaskets Tennessee - [STC SE02291AT](https://openairdocs.org/stc/SE02291AT): Conversion of the engine from a carburetor fuel system and magneto ignition system to a full authority digital electronic control (FADEC) system for fuel injection and ignition. Continental Motors, 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 SE00889LA](https://openairdocs.org/stc/SE00889LA): Installation of Nickson's cylinder barrels on Lycoming reciprocating engine models. Nickson's Machine Shop Inc - [STC SE1-201](https://openairdocs.org/stc/SE1-201): Installation of the Richter Aero Equipment Type B-4 or B-5 Temperature Probe. (O-360 SERIES (excl. A1C, C2B, C2D)). MidContinent Instru Co Inc. Lists O-360 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 O-360 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 O-360 Series - [STC SE702NE](https://openairdocs.org/stc/SE702NE): Modification of crankcase tappet bores to accommodate large tappets. Mattituck Airbase, Inc - [STC SE370NE](https://openairdocs.org/stc/SE370NE): Installation of 'Auto-Vac 2' auxiliary vacuum system. Raymond Ives - [STC SE452NE](https://openairdocs.org/stc/SE452NE): Installation and usage of 'Mobil AV 1' aviation oil. Mobil Research & Development Corp. Lists O-360 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 O-360 Series - [STC SE5924SW](https://openairdocs.org/stc/SE5924SW): Installation of stainless steel replacement exhaust studs on AVCO engines. Perrigo & Steele Aircraft Engr Company. Lists O-360 Series - [STC SE244NE](https://openairdocs.org/stc/SE244NE): Installation of Mattituck plasma flame sprayed cylinder barrels in Teledyne reciprocating engines. Mattituck Airbase, Inc. Lists O-360 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 O-360 Series - [STC SE128NE](https://openairdocs.org/stc/SE128NE): Use of AMS/OIL 15W 50 synthetic piston aircraft oil in Avco engines. AMS/OIL. Lists O-360 Series --- 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.