The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 8, 2026

Lycoming O-235 series

6,134 aircraft on the U.S. register carry a Lycoming O-235 series engine, rated at about 115 horsepower. The Cessna 152 is the model most often fitted with it (1,545 aircraft). The aircraft carrying it were built between 1945 and 2025.

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-235 series. FAA spelling: 0-235 SERIES.

When the aircraft were built by decade

By decade built, as a table
aircraft
19304
19401,107
1950157
1960759
19702,138
1980668
1990159
200072
201016
20204

What the FAA has certified, ordered and been told about the Lycoming O-235 series the component layer

The design is held under 1 type certificate (E-223, held by Lycoming Engines). The FAA has issued 13 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 20 failure reports with the FAA since 1995, 3 of them in the last ten years.

FAA orders 13 airworthiness directives · newest first

2026-09-142026-17-10 · Reciprocating Engine Cylinder Section · engine
2026-04-082026-04-11 · Engine (Reciprocating) · engine
2024-12-052024-21-02 · Engine (Reciprocating) · engine
2022-08-152022-16-03 · Engine (RECIPROCATING) · engine
2012-03-272012-03-07 · Carburetor · engine
2004-06-252004-10-14 · Crankshaft gear · engine

All orders naming the Lycoming O-235 series

Failure reports 20 since · what operators and shops told the FAA

02479998299300202103109110117
Failure reports by year, as a table
reports
989
992
003
022
031
091
101
171

Parts most often reported as the reports name them

Axle6Cylinder4Fork2Spark Plug2Balance Weight1Coil1Pin1Plug1Support1Tube1
Parts most reported, as a table
reports
Axle6
Cylinder4
Fork2
Spark Plug2
Balance Weight1
Coil1
Pin1
Plug1
Support1
Tube1

Latest reports

2017-07-03Coil: failed
2010-02-12Support: misinstalled
2009-05-24Spark Plug: broken
2003-12-05Spark Plug: worn
2002-11-21Cylinder: cracked

Certificates and bulletins

E-223Type certificate held by Lycoming Engines · 43 models listed · revised January 31, 2020

Safety bulletins 4 · 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
2008-09-10NE-06-32R1 · Reciprocating Engine - Crankshaft
2005-09-30NE-05-89 ·

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

The whole map of how records connect · these connections as data: /graph/engine/lycoming-o-235-series.json.

Aircraft newest certificates first · 6,134

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N7265L American Aviation
AA-1A
Fixed-wing, single engine Gulfstream Aerospace CORP
Savannah, Georgia
Standard ValidFAA registration status code V: Valid registration. All codes
N7603H Piper
PA-12
Fixed-wing, single engine No owner on file
Standard Assigned, not yet registeredFAA registration status code 2: N-number assigned but not yet registered. All codes
N764AP Piper
PA-38-112
Fixed-wing, single engine Individual owner
Louisiana
Standard Sale reportedFAA registration status code 7. All codes
N769NE Cessna
152
Fixed-wing, single engine Individual owner
Pennsylvania
Standard PendingFAA registration status code R: Registration pending. All codes
N7721H Piper
PA-12
Fixed-wing, single engine Individual owner
Alaska
Standard PendingFAA registration status code R: Registration pending. All codes
N7777H Piper
PA-12
Fixed-wing, single engine Individual owner
Louisiana
Standard Sale reportedFAA registration status code 7. All codes
N78453 Piper
PA-12
Fixed-wing, single engine Individual owner
Oklahoma
Standard CanceledFAA registration status code 18: Sale reported, canceled. All codes
N82286 Aeronca
7AC
Fixed-wing, single engine Individual owner
Arizona
Standard PendingFAA registration status code R: Registration pending. All codes
N8334V Champion
7ECA
Fixed-wing, single engine Individual owner
Florida
Standard PendingFAA registration status code R: Registration pending. All codes
N8609V Bellanca
7ECA
Fixed-wing, single engine Individual owner
Minnesota
Standard PendingFAA registration status code R: Registration pending. All codes
N86612 Bellanca
7ECA
Fixed-wing, single engine Individual owner
Delaware
Standard Sale reportedFAA registration status code 7. All codes
N872X Grumman American Avn. Corp.
AA-1C
Fixed-wing, single engine Gulfstream Aerospace CORP
Savannah, Georgia
Experimental ValidFAA registration status code V: Valid registration. All codes
N8983L Grumman American Avn. Corp.
AA-1B
Fixed-wing, single engine Individual owner
Texas
Standard Sale reportedFAA registration status code 7. All codes
N9009L Champion
7ECA
Fixed-wing, single engine Individual owner
Alaska
Multiple Sale reportedFAA registration status code 17: Sale reported, pending cancellation. All codes
N9073L Champion
7ECA
Fixed-wing, single engine Individual owner
Tennessee
Standard PendingFAA registration status code R: Registration pending. All codes
N90987 Bellanca
7ECA
Fixed-wing, single engine Individual owner
Montana
Standard PendingFAA registration status code R: Registration pending. All codes
N91319 Piper
PA-38-112
Fixed-wing, single engine Bas Part Sales LLC
Greeley, Colorado
Standard ValidFAA registration status code V: Valid registration. All codes
N91544 Piper
PA-38-112
Fixed-wing, single engine Piper Aircraft INC
Vero Beach, Florida
Standard ValidFAA registration status code V: Valid registration. All codes
N919GP American
AA-1
Fixed-wing, single engine Individual owner
Georgia
Standard PendingFAA registration status code R: Registration pending. All codes
N9304T Piper
PA-38-112
Fixed-wing, single engine Piper Aircraft INC
Vero Beach, Florida
Standard ValidFAA registration status code V: Valid registration. All codes
N9305Z Piper
PA-12
Fixed-wing, single engine Individual owner
Oregon
Standard PendingFAA registration status code R: Registration pending. All codes
N9308L American Aviation
AA-1A
Fixed-wing, single engine Individual owner
Mississippi
Standard PendingFAA registration status code R: Registration pending. All codes
N93281 Cessna
152
Fixed-wing, single engine Individual owner
Colorado
Standard ValidFAA registration status code V: Valid registration. All codes
N9335L American Aviation
AA-1A
Fixed-wing, single engine Gulfstream Aerospace CORP
Savannah, Georgia
Experimental ValidFAA registration status code V: Valid registration. All codes
N9383L American Aviation
AA-1A
Fixed-wing, single engine Individual owner
Nebraska
Standard PendingFAA registration status code R: Registration pending. All codes
N9451T Piper
PA-38-112
Fixed-wing, single engine Individual owner
Texas
Standard PendingFAA registration status code R: Registration pending. All codes
N94584 Cessna
152
Fixed-wing, single engine Individual owner
Indiana
Standard Sale reportedFAA registration status code 7. All codes
N9499L American Aviation
AA-1A
Fixed-wing, single engine Individual owner
Texas
Standard PendingFAA registration status code R: Registration pending. All codes
N9593S Champion
7ECA
Fixed-wing, single engine Stoffer Aviation LLC
Marion, Indiana
Standard ValidFAA registration status code V: Valid registration. All codes
N9649L Grumman American Avn. Corp.
AA-1B
Fixed-wing, single engine Gulfstream Aerospace CORP
Savannah, Georgia
Standard ValidFAA registration status code V: Valid registration. All codes
N9654L Grumman American Avn. Corp.
AA-1B
Fixed-wing, single engine Individual owner
Texas
Standard Sale reportedFAA registration status code 7. All codes
N9671L Grumman American Avn. Corp.
AA-1B
Fixed-wing, single engine Individual owner
Pennsylvania
Standard PendingFAA registration status code R: Registration pending. All codes
N9693S Champion
7ECA
Fixed-wing, single engine Individual owner
North Dakota
Standard Sale reportedFAA registration status code 7. All codes
N98663 Piper
J3C-65
Fixed-wing, single engine Individual owner
Oregon
Restricted CanceledFAA registration status code 18: Sale reported, canceled. All codes

Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), October 8, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.