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

Lycoming O-360-D1A

6 aircraft on the U.S. register carry a Lycoming O-360-D1A engine, rated at about 168 horsepower. The Schweizer 269 300 series helicopters is the model most often fitted with it (2 aircraft). The aircraft carrying it were built between 1991 and 2024.

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 O-360-D1A. FAA spelling: O-360-D1A.

Fitted to model families

Schweizer 269 300 series helicopters2Boaz Lowell D GLASTAR1David W Clinthorne RV-6A1Stoops Hugh J RV-61Victor D Neudorf RV-61

Schweizer 269 300 series helicopters · Boaz Lowell D GLASTAR · David W Clinthorne RV-6A · Stoops Hugh J RV-6 · Victor D Neudorf RV-6

Where they are owner's state

Virginia1Texas1Tennessee1Illinois1Florida1Alabama1

Kind of aircraft

Piston singles4 (67%)Helicopters2 (33%)

When the aircraft were built by decade

01223119903200012020

What the FAA has certified, ordered and been told about the Lycoming O-360-D1A the component layer

The design is held under 1 type certificate (E-286, held by Lycoming Engines). The FAA has issued 19 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 1 failure report with the FAA since 1995, 1 of them in the last ten years.

FAA orders 19 airworthiness directives · newest first

2026-04-082026-04-11 · Engine (Reciprocating) · engine
2024-12-052024-21-02 · Engine (Reciprocating) · engine
2012-10-242012-19-01 · Crankshafts · engine
2012-03-272012-03-07 · Carburetor · engine
2008-10-202008-19-05 · Parallel Valve'' reciprocating engines · engine
2006-01-312005-26-10 · ECi cylinder assemblies. · engine

All orders naming the Lycoming O-360-D1A

Failure reports 1 since · what operators and shops told the FAA

00011104

Parts most often reported as the reports name them

Bolt1

Latest reports

2004-03-26Bolt: sheared

Certificates and bulletins

E-286Type certificate held by Lycoming Engines · 72 models listed · revised April 30, 2013

Safety bulletins 6 · advice, not orders

2019-05-02NE-19-08 · Reciprocating Engine Cylinder Section - Lycoming Engines Parallel Valve Cylinders
2016-05-13NE-08-32R1 · Propeller Governor Idler Gear Shaft Set Screw
2014-03-24NE-14-13 · Reciprocating Engine - Cylinder Mounting Studs
2012-11-21NE-13-06 · Pushrod Shroud Spring Retainers, Engine Components Part No. AEL14995, for Lycoming Engines 320,...
2008-09-10NE-06-32R1 · Reciprocating Engine - Crankshaft

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
Biggest operators
Airworthiness

These connections as data: /graph/engine/lycoming-o-360-d1a.json · about the eFlight graph.

Aircraft newest certificates first · 6

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N522GA Boaz Lowell D
GLASTAR
Fixed-wing, single engine Individual owner
Alabama
Experimental 2024-03-15 ValidFAA registration status code V: Valid registration. All codes
N506AT David W Clinthorne
RV-6A
Fixed-wing, single engine Individual owner
Virginia
Experimental 2023-09-12 ValidFAA registration status code V: Valid registration. All codes
N2093S Schweizer
269C
Rotorcraft Skyline Aviation INC
San Angelo, Texas
Standard 2022-11-02 ValidFAA registration status code V: Valid registration. All codes
N789LH Schweizer
269C
Rotorcraft Jones Aircraft Company LLC
Cross Plains, Tennessee
Standard 2022-03-26 ValidFAA registration status code V: Valid registration. All codes
N189EM Stoops Hugh J
RV-6
Fixed-wing, single engine Rv Wings LLC
Glen Carbon, Illinois
Experimental 2021-05-13 ValidFAA registration status code V: Valid registration. All codes
N568GM Victor D Neudorf
RV-6
Fixed-wing, single engine Individual owner
Florida
Experimental 2015-09-15 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.