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

Lycoming O-360-A4P

4 aircraft on the U.S. register carry a Lycoming O-360-A4P engine, rated at about 180 horsepower. The Piper PA-18 Super Cub is the model most often fitted with it (3 aircraft). The aircraft carrying it were built between 1959 and 2021.

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-A4P. FAA spelling: O-360-A4P.

Fitted to model families

Piper PA-18 Super Cub3Larry Bingham LB-11

Piper PA-18 Super Cub · Larry Bingham LB-1

Where they are owner's state

North Dakota1Kentucky1Idaho1Alaska1

Kind of aircraft

Piston singles4 (100%)

When the aircraft were built by decade

00011119501197012020

What the FAA has certified, ordered and been told about the Lycoming O-360-A4P the component layer

The design is held under 1 type certificate (E-286, held by Lycoming Engines). The FAA has issued 14 airworthiness directives (orders that owners must comply with) that name this engine series.

FAA orders 14 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-A4P

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
Airworthiness

These connections as data: /graph/engine/lycoming-o-360-a4p.json · about the eFlight graph.

Aircraft newest certificates first · 4

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N555LB Larry Bingham
LB-1
Fixed-wing, single engine Individual owner
Kentucky
Experimental 2025-06-03 ValidFAA registration status code V: Valid registration. All codes
N329DP Piper
PA-18-150
Fixed-wing, single engine Hitchcock Aviation LLC
Twin Falls, Idaho
Standard 2023-05-10 ValidFAA registration status code V: Valid registration. All codes
N2886Z Piper
PA-18-150
Fixed-wing, single engine Individual owner
Alaska
Standard 2021-12-18 ValidFAA registration status code V: Valid registration. All codes
N1714B Piper
PA-18-150
Fixed-wing, single engine Great Plains Aero INC
Tolley, North Dakota
Standard 2016-01-26 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.