The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 5, 2026

Lycoming HIO-360-E1AD

9 aircraft on the U.S. register carry a Lycoming HIO-360-E1AD engine, rated at about 190 horsepower. The Enstrom Helicopter Corp 280 is the model most often fitted with it (4 aircraft). The aircraft carrying it were built between 1976 and 2020.

The FAA records engines by code, usually at the level of a series ("O-320 series") rather than the exact variant; this page gathers every FAA code that reads as Lycoming HIO-360-E1AD. FAA spelling: HIO-360-E1AD.

Fitted to model families

Enstrom Helicopter Corp 2804Church Jeffrey J CHURCH RV-61Copp David G GLASAIR SIIS FT1Enstrom F-281Karl Hipp ZENAIR 8011Meggers Roger D STARDUSTER SA300X1

Enstrom Helicopter Corp 280 · Church Jeffrey J CHURCH RV-6 · Copp David G GLASAIR SIIS FT · Enstrom F-28 · Karl Hipp ZENAIR 801 · Meggers Roger D STARDUSTER SA300X

Where they are owner's state

Texas1Puerto Rico1Pennsylvania1Oregon1North Dakota1Montana1Colorado1Arkansas1Alaska1

Kind of aircraft

Helicopters5 (56%)Piston singles4 (44%)

When the aircraft were built by decade

01245519702200012020

What the FAA has certified, ordered and been told about the Lycoming HIO-360-E1AD the component layer

The design is held under 1 type certificate (1E10, held by Lycoming Engines). The FAA has issued 26 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 19 failure reports with the FAA since 1995, 19 of them in the last ten years.

FAA orders 26 airworthiness directives · newest first

2026-04-082026-04-11 · Engine (Reciprocating) · engine
2024-12-052024-21-02 · Engine (Reciprocating) · engine
2015-11-032015-19-07 · Fuel injector fuel lines · engine
2012-02-242012-03-06 · Fuel servo diaphragm · engine
2012-01-252011-26-04 · Externally mounted fuel injector fuel lines · engine
2011-08-162011-15-10 · Fuel servos · engine

All orders naming the Lycoming HIO-360-E1AD

Failure reports 19 since · what operators and shops told the FAA

01234295396397298299301402

Parts most often reported as the reports name them

Bearing2Cylinder2Blade1Bolt1Bulkhead1Capacitor1Connecting Rod1Damper1Flex Coupling1Line1

Latest reports

2002-03-20Skin: cracked
2002-03-20Bulkhead: damaged
2002-03-01Connecting Rod: failed
2002-01-04Line: broken
2001-12-11Valve Seat: loose

Certificates and bulletins

1E10Type certificate held by Lycoming Engines · 89 models listed · revised May 4, 2020

Safety bulletins 5 · advice, not orders

2019-05-02NE-19-08 · Reciprocating Engine Cylinder Section - Lycoming Engines Parallel Valve Cylinders
2014-03-24NE-14-13 · Reciprocating Engine - Cylinder Mounting Studs
2011-03-31NE-08-26R3 · Magneto/Distributor
2008-09-10NE-06-32R1 · Reciprocating Engine - Crankshaft
2008-07-08NE-08-26R1 · Dual Magnetos

Sources: the FAA's type certificate data sheets, airworthiness directives, supplemental type certificates, special conditions and special airworthiness information bulletins (Dynamic Regulatory System), and the FAA's service difficulty reports. A failure report is what an operator or repair station chose to file; the counts show reporting as much as reliability, and larger and commercial fleets report more. How the systems are grouped.

Connections how this engine series links to the rest of the register

Fitted to
Where they are
Airworthiness

These connections as data: /graph/engine/lycoming-hio-360-e1ad.json · about the eFlight graph.

Aircraft newest certificates first · 9

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N280WR Enstrom Helicopter Corp
280C
Rotorcraft Beacon Aviation Flight Services LLC
Rogers, Arkansas
Standard 2025-01-21 ValidFAA registration status code V: Valid registration. All codes
N801ST Karl Hipp
ZENAIR 801
Fixed-wing, single engine Sfo Aviation LLC
Humacao, Puerto Rico
Experimental 2023-05-09 ValidFAA registration status code V: Valid registration. All codes
N106DA Enstrom Helicopter Corp
280C
Rotorcraft Beartooth Fencing LLC
Reed Point, Montana
Standard 2023-03-27 ValidFAA registration status code V: Valid registration. All codes
N212AK Enstrom
F-28C
Rotorcraft Individual owner
Alaska
Standard 2019-12-16 ValidFAA registration status code V: Valid registration. All codes
N280MG Enstrom Helicopter Corp
280C
Rotorcraft M&M Charter LLC
Mountville, Pennsylvania
Standard 2016-11-22 ValidFAA registration status code V: Valid registration. All codes
N431KP Meggers Roger D
STARDUSTER SA300X
Fixed-wing, single engine Individual owner
North Dakota
Experimental 2016-09-15 ValidFAA registration status code V: Valid registration. All codes
N5690B Enstrom Helicopter Corp
280C
Rotorcraft K & L Aerial LLC
Echo, Oregon
Restricted 2013-04-03 ValidFAA registration status code V: Valid registration. All codes
N280DC Copp David G
GLASAIR SIIS FT
Fixed-wing, single engine Individual owner
Colorado
Experimental 2009-01-16 ValidFAA registration status code V: Valid registration. All codes
N643CF Church Jeffrey J
CHURCH RV-6
Fixed-wing, single engine Individual owner
Texas
Experimental 2007-03-27 ValidFAA registration status code V: Valid registration. All codes

Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), October 5, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.