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

Lycoming IO-360-D1A

4 aircraft on the U.S. register carry a Lycoming IO-360-D1A engine, rated at about 200 horsepower. The Schweizer 269 300 series helicopters is the model most often fitted with it (2 aircraft). The aircraft carrying it were built between 2008 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 IO-360-D1A. FAA spelling: IO-360-D1A.

Fitted to model families

Schweizer 269 300 series helicopters2Hugh Nunnally Farrior COZY MK IV1Neil Rosoff VANS RV9A1

Schweizer 269 300 series helicopters · Hugh Nunnally Farrior COZY MK IV · Neil Rosoff VANS RV9A

Where they are owner's state

Florida3New Jersey1

Kind of aircraft

Piston singles2 (50%)Helicopters2 (50%)

When the aircraft were built by decade

00122120002201012020

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

The design is held under 1 type certificate (1E10, held by Lycoming Engines). The FAA has issued 28 airworthiness directives (orders that owners must comply with) that name this engine series.

FAA orders 28 airworthiness directives · newest first

2026-04-082026-04-11 · Engine (Reciprocating) · engine
2024-12-052024-21-02 · Engine (Reciprocating) · engine
2022-08-152022-16-03 · Engine (RECIPROCATING) · engine
2012-10-242012-19-01 · Crankshafts · engine
2012-02-242012-03-06 · Fuel servo diaphragm · engine
2011-08-162011-15-10 · Fuel servos · engine

All orders naming the Lycoming IO-360-D1A

Certificates and bulletins

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

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
Airworthiness

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

Aircraft newest certificates first · 4

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N511RJ Schweizer
269C
Rotorcraft Carman Scott C
Port Orange, Florida
Standard 2024-04-10 ValidFAA registration status code V: Valid registration. All codes
N222HF Hugh Nunnally Farrior
COZY MK IV
Fixed-wing, single engine Individual owner
Florida
Experimental 2022-04-21 ValidFAA registration status code V: Valid registration. All codes
N913HC Neil Rosoff
VANS RV9A
Fixed-wing, single engine Individual owner
New Jersey
Experimental 2019-02-12 ValidFAA registration status code V: Valid registration. All codes
N626LH Schweizer
269C
Rotorcraft Heli-Tech INC
Panama City, Florida
Standard 2010-04-08 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.