# Lycoming HIO-360-E1AD

- Type: Engine model (FAA registry)
- Registry code: 41894
- Manufacturer (registry): LYCOMING
- Model: HIO-360-E1AD
- Engine type: Reciprocating
- Power: 190 hp
- Data sheet: [TCDS 1E10](https://openairdocs.org/tcds/1E10) (OpenAirDocs)
- Holder: Lycoming Engines
- Installed in: 10 registered aircraft
- Page: https://openairdocs.org/engine/lycoming-hio-360-e1ad

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 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 2012-03-06](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 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 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 95-07-01](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 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 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

Historical (superseded or no longer in force):

- [AD 2024-21-02](https://openairdocs.org/ad/2024-21-02) (historical): Engine (Reciprocating) · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 548 more. Effective Dec 5, 2024
- [AD 2011-26-04](https://openairdocs.org/ad/2011-26-04) (historical): Externally mounted fuel injector fuel lines · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1B and 186 more. Effective Jan 25, 2012
- [AD 2011-15-10](https://openairdocs.org/ad/2011-15-10) (historical): Fuel servos · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 256 more. Effective Aug 16, 2011
- [AD 2008-14-07](https://openairdocs.org/ad/2008-14-07) (historical): Externally mounted fuel injector fuel lines · Textron Lycoming, AVCO AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1B and 185 more. Effective Aug 14, 2008
- [AD 2008-08-14](https://openairdocs.org/ad/2008-08-14) (historical): Fuel injection servo plugs · Superior Air Parts AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 242 more. Effective Apr 29, 2008
- [AD 2008-06-51](https://openairdocs.org/ad/2008-06-51) (historical): Fuel injection servo plugs · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 235 more
- [AD 2005-26-10](https://openairdocs.org/ad/2005-26-10) (historical): ECi cylinder assemblies. · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 413 more. Effective Jan 31, 2006
- [AD 2002-26-01](https://openairdocs.org/ad/2002-26-01) (historical): Fuel injector fuel lines · Textron Lycoming, AVCO IGO-480-A1B6, IGO-540-B1A, IGO-540-B1C and 178 more. Effective Jan 31, 2003
- [AD 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) (6)

- [SAIB NE-19-08](https://openairdocs.org/saib/NE-19-08): Reciprocating Engine Cylinder Section - Lycoming Engines Parallel Valve Cylinders. Issued May 2, 2019
- [SAIB NE-14-13](https://openairdocs.org/saib/NE-14-13): Reciprocating Engine - Cylinder Mounting Studs. Issued Mar 24, 2014
- [SAIB NE-08-26R3](https://openairdocs.org/saib/NE-08-26R3): Magneto/Distributor. Issued Mar 31, 2011
- [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-08-26R1](https://openairdocs.org/saib/NE-08-26R1) (historical): Dual Magnetos. Issued Jul 8, 2008

## Registered aircraft (10)

- [N106DA](https://openairdocs.org/aircraft/N106DA): [Beartooth Fencing LLC](https://openairdocs.org/faa-owner/BEARTOOTH%20FENCING%20LLC), [Reed Point, MT](https://openairdocs.org/faa-place/MT/Reed%20Point), built 1976, S/N 1050
- [N212AK](https://openairdocs.org/aircraft/N212AK): [Hinshaw Martin E](https://openairdocs.org/faa-owner/HINSHAW%20MARTIN%20E), [Wasilla, AK](https://openairdocs.org/faa-place/AK/Wasilla), built 1978, S/N 431
- [N280DC](https://openairdocs.org/aircraft/N280DC): [Copp David G](https://openairdocs.org/faa-owner/COPP%20DAVID%20G), [Westminster, CO](https://openairdocs.org/faa-place/CO/Westminster), built 2009, S/N 2358
- [N280MG](https://openairdocs.org/aircraft/N280MG): [M&M Charter LLC](https://openairdocs.org/faa-owner/M%26M%20CHARTER%20LLC), [Mountville, PA](https://openairdocs.org/faa-place/PA/Mountville), built 1978, S/N 1135
- [N280WR](https://openairdocs.org/aircraft/N280WR): [Beacon Aviation Flight Services LLC](https://openairdocs.org/faa-owner/BEACON%20AVIATION%20FLIGHT%20SERVICES%20LLC), [Rogers, AR](https://openairdocs.org/faa-place/AR/Rogers), built 1977, S/N 1108
- [N431KP](https://openairdocs.org/aircraft/N431KP): [Pietsch Kent D](https://openairdocs.org/faa-owner/PIETSCH%20KENT%20D), [Burlington, ND](https://openairdocs.org/faa-place/ND/Burlington), built 2020, S/N SA2281X
- [N565X](https://openairdocs.org/aircraft/N565X): [Mackechnie Martin J](https://openairdocs.org/faa-owner/MACKECHNIE%20MARTIN%20J), [Palm Harbor, FL](https://openairdocs.org/faa-place/FL/Palm%20Harbor), built 1978, S/N 1138
- [N5690B](https://openairdocs.org/aircraft/N5690B): [K & L Aerial LLC](https://openairdocs.org/faa-owner/K%20%26%20L%20AERIAL%20LLC), [Echo, OR](https://openairdocs.org/faa-place/OR/Echo), built 1979, S/N 1171
- [N643CF](https://openairdocs.org/aircraft/N643CF): [Church Jeffrey J](https://openairdocs.org/faa-owner/CHURCH%20JEFFREY%20J), [Lubbock, TX](https://openairdocs.org/faa-place/TX/Lubbock), built 2007, S/N 24772
- [N801ST](https://openairdocs.org/aircraft/N801ST): [Sfo Aviation LLC](https://openairdocs.org/faa-owner/SFO%20AVIATION%20LLC), [Humacao, PR](https://openairdocs.org/faa-place/PR/Humacao), S/N 880208

## NTSB investigations (2)

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 ERA26FA077](https://openairdocs.org/ntsb/ERA26FA077), Dec 28, 2025: Enstrom 280 (N280MG), Hammonton, NJ, destroyed, 2 fatal, investigation ongoing
- [NTSB CEN24LA137](https://openairdocs.org/ntsb/CEN24LA137), Mar 16, 2024: Enstrom Helicopter 280C (N280WR), Port Lavaca, TX, substantial damage. Probable cause: The pilot’s improper manual engine mixture management which resulted in a loss of power. Contributing to the accident was the mechanic’s improper setting of the idle mixture adjustment and the…

## FAA accident and incident reports (2)

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.

- [Accident 20251228019722A](https://openairdocs.org/incident/20251228019722A), Dec 28, 2025: Enstrom Helicopter Corp 280C (N280MG), Hammonton, NJ, Destroyed, 1 fatal. Enstrom 280C helicopter collided mid-air with an Enstrom F-28A helicopter after departure from N81. Both helicopters observed to be flying in close proximity…
- [Accident 20240313004729A](https://openairdocs.org/incident/20240313004729A), Mar 13, 2024: Enstrom Helicopter Corp 280C (N280WR), Port Lavaca, TX, Substantial damage. Aircraft lifted off for a reposition on pilots own property. During the reposition side slip additional power was commanded to clear the concrete helipad.…

## Service difficulty reports (19)

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

- [SDR AUS20020291](https://openairdocs.org/sdr/AUS20020291), Mar 20, 2002: SKIN. CRACKED. (AUS) TAIL CONE SKIN CRACKED IN AREA UNDER RADIO AERIAL.
- [SDR AUS20020292](https://openairdocs.org/sdr/AUS20020292), Mar 20, 2002: BULKHEAD. DAMAGED. (AUS) TAIL BOOM BULKHEAD AND SKINS CRACKED. INCORRECT ANCHOR NUTFITTED.
- [SDR 2002FA0000586](https://openairdocs.org/sdr/2002FA0000586), Mar 1, 2002: CONNECTING ROD. FAILED. NR 2 CONNECTING ROD BOLT FAILED CAUSING CONNECTING ROD TO GO THROUGH CRANK CASE CAUSING MAJOR ENGINE FAILURE. ENGINE DESTROYED. TOP OF BOLT FAILED CAUSING ROD C
- [SDR 2003FA0000350](https://openairdocs.org/sdr/2003FA0000350), Jan 4, 2002: LINE. BROKEN. THE TUBE FAILED INSIDE THE FERRULE ON THE ENGINE DRIVEN FUEL PUMP FITTING DUE TO RUBBING AND VIBRATION. FAILURE WAS FOUND AFTER PILOT COMPLAINED OF LOW M.A.P., 
- [SDR 2001FA0000685](https://openairdocs.org/sdr/2001FA0000685), Dec 11, 2001: VALVE SEAT. LOOSE. NUMBER 4 CYLINDER HAD AN INTAKE VALVE SEAT COME LOOSE AND THE PISTON HAD BROKEN RINGS. SUBSEQUENT LOSS OF POWER.
- [SDR AUS20010932](https://openairdocs.org/sdr/AUS20010932), Jul 26, 2001: TURBOCHARGER. FOD. (AUS) ENGINE TURBOCHARGER INGESTED A NUT FROM THE AIR STATIC TUBE LOCATED INSIDE THE AIR CLEANER. FOD.
- [SDR AUS20010724](https://openairdocs.org/sdr/AUS20010724), May 25, 2001: BEARING. FAILED. (AUS) MAIN ROTOR HEAD LAMIFLEX BEARING FAILED. SUSPECT CAUSED BY GREASE CONTAMINATION.
- [SDR 99ZZZX3398](https://openairdocs.org/sdr/99ZZZX3398), Aug 19, 1999: VALVE. FAILED. INSTALLED NEW VALVES AT TIME OF OVH. VALVE STEM END BROKE OFF DUE TO ABNORMAL WEAR.
- [SDR 99ZZZX3075](https://openairdocs.org/sdr/99ZZZX3075), Aug 9, 1999: CAPACITOR. FAILED. DURING RUN-UP, CUSTOMER NOTED NO MAG DROP ON ONE MAGNETO. MAINTENANCE PERSONNEL FOUND CAPACITOR WAS 'OPEN' INTERNALLY, SO MAG COULD NOT GROUND WHEN SELECTED. NE
- [SDR CA980915013](https://openairdocs.org/sdr/CA980915013), Sep 2, 1998: FLEX COUPLING. CRACKED. (CAN) ONE CRACKED PLATE IN FLEX PACK ON 100 HR INSPECTION.
- [SDR AU980382](https://openairdocs.org/sdr/AU980382), Apr 8, 1998: BEARING. FAILED. (AUS) MAIN ROTOR HUB `LAMAFLEX' BEARING FAILED IN-FLIGHT.
- [SDR 99ZZZX341](https://openairdocs.org/sdr/99ZZZX341), Oct 10, 1997: STUD. DAMAGED. DURING ANNUAL INSPECTION, 10-10-97, NR 2 CYLINDER COMPRESSION LOW. AFTER INSPECTION OF CYLINDER, FOUND INTAKE VALVE SEAT LOOSE AND VALVE BURNT. SUBMITTER STATED
- [SDR 99ZZZX342](https://openairdocs.org/sdr/99ZZZX342), Oct 10, 1997: CYLINDER. DAMAGED. DURING ANNUAL INSPECTION, 10-10-97, FOUND NR 2 CYLINDER COMPRESSION WAS LOW. AFTER INSPECTION OF CYLINDER, INTAKE VALVE SEAT WAS FOUND LOOSE, INTAKE VALVE WAS B
- [SDR 97ZZZX964](https://openairdocs.org/sdr/97ZZZX964), Jan 29, 1997: CYLINDER. FAILED. ON A NIGHT TRAINING FLIGHT, NR 2 CYLINDER BLEW OUT ABOVE THE EXHAUST PORT. THE BLOW-OUT STEERED THE NR 4 CYLINDER OIL LINE AND STARTED A FIRE. AN EMERGENCY LAND
- [SDR CA960715008](https://openairdocs.org/sdr/CA960715008), Jul 4, 1996: DAMPER. SHEARED BOLT. (CAN) BOLT FOUND SHEARED IN TWO AT THE ATTACHMENT TO THE MAIN ROTOR HUB.
- [SDR CA960522005](https://openairdocs.org/sdr/CA960522005), May 8, 1996: BLADE. DELAMINATION. (CAN) BLADE DELAMINATING IN MID PART OF BLADE TOWARDS LEADING EDGE.
- [SDR AU960515](https://openairdocs.org/sdr/AU960515), Jan 26, 1996: PIPE. WRONG PART. (AUS) NO1 CYLINDER EXHAUST VALVE SEAT DROPPED CONTACTING THE PISTON AND CAUSING CYLINDER FAILURE - ENGINE WAS BULK STRIPPED AND INVESTIGATION OF NO1 CYLINDER AS
- [SDR 96ZZZX159](https://openairdocs.org/sdr/96ZZZX159), Dec 6, 1995: BOLT. FAILED. THE NR 3 ROD CAP SEPARATED FROM ROD. ROD BOLTS WERE DAMAGED TOO BADLY TO BE IDENTIFIED FOR SURE, BUT SHOULD BE PART NUMBER LISTED. THESE BOLTS HAVE STRETCH TORQ
- [SDR 95ZZZX4024](https://openairdocs.org/sdr/95ZZZX4024), Jul 26, 1995: TUBE. DETACHED. HELICOPTER DEPARTED SCK AIRPORT AND MADE A FORCED LANDING IN A FIELD. INVESTIGATION FOUND AN INDUCTION TUBE HAD COME LOOSE. RECOMMEND DURING OVERHAUL, ALL TUBES

## STCs that may be installed (OpenAirDocs) (27)

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 SE2389CE](https://openairdocs.org/stc/SE2389CE): Installation of B&C Speciality Products lightweight (10.2) pounds) engine starter, part number BC-315-100-1 (12 volts) or part number BC-315-100-3 (24 volts). B & C Specialty Products Inc
- [STC SE03232CH](https://openairdocs.org/stc/SE03232CH): Installation of Engine Preheat Kit p/n TA2925-1 for 115 volt application. Hartzell Propeller Inc
- [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 HIO-360 Series
- [STC SE4408SW](https://openairdocs.org/stc/SE4408SW): Miscellaneous engine cylinder replacement parts. Continental Motors, Inc. Lists HIO-360 Series
- [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings. Continental Motors, Inc. Lists HIO-360 Series
- [STC SE02409AK](https://openairdocs.org/stc/SE02409AK): Installation of the Superior Air Parts Cold Air Induction System (CAIS). Wattum Aircraft Services
- [STC SE01930NY](https://openairdocs.org/stc/SE01930NY): Installation of Casper Labs 90 degree oil filter housing adapter. Casper Labs 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 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 HIO-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 HIO-360 Series
- [STC SE2389SE](https://openairdocs.org/stc/SE2389SE): Installation of B & C Specialty Products. Bainbridge William C III. Lists HIO-360 Series
- [STC SE452NE](https://openairdocs.org/stc/SE452NE): Installation and usage of 'Mobil AV 1' aviation oil. Mobil Research & Development Corp. Lists HIO-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 HIO-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 HIO-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 HIO-360 Series
- [STC SE1445SO](https://openairdocs.org/stc/SE1445SO): Use of Aero-blend oil additive in Teledyne (non turbocharged) aircraft engines. ProTec. Lists HIO-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 HIO-360 Series
- [STC SE100GL](https://openairdocs.org/stc/SE100GL): Installation of Rajay 301E10-2, P/N RJ0328, or 3BT5EE10J2, P/N10357400, turbocharger. Enstrom Helicopter Corporation

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