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.

Fitted to model families

Model families, as a table

	aircraft
Cessna 152	1,545
Piper PA-12 Super Cruiser	878
Piper PA-22 Tri-Pacer and Colt	552
Piper PA-38 Tomahawk	409
Bellanca 7 Citabria	318
Champion 7 Citabria and Champ	311
Grumman American Avn. Corp. AA-1 Yankee and Trainer	305
Piper PA-16 Clipper	252
American Aviation AA-1	198
American AA-1	165
Piper PA-18 Super Cub	165
Beechcraft 77 Skipper	106

Cessna 152 · Piper PA-12 Super Cruiser · Piper PA-22 Tri-Pacer and Colt · Piper PA-38 Tomahawk · Bellanca 7 Citabria · Champion 7 Citabria and Champ · Grumman American Avn. Corp. AA-1 Yankee and Trainer · Piper PA-16 Clipper · American Aviation AA-1 · American AA-1

Where they are owner's state

Texas571California547Florida484Alaska383Washington217Minnesota186North Carolina185Michigan180Oregon179New York166

By state, as a table

	aircraft
Texas	571
California	547
Florida	484
Alaska	383
Washington	217
Minnesota	186
North Carolina	185
Michigan	180
Oregon	179
New York	166

Kind of aircraft

Piston singles6,132 (100%)Helicopters1 (0.0%)Gliders1 (0.0%)

By kind, as a table

	aircraft	share
Piston singles	6,132	100%
Helicopters	1	0.0%
Gliders	1	0.0%

When the aircraft were built by decade

By decade built, as a table

	aircraft
1930	4
1940	1,107
1950	157
1960	759
1970	2,138
1980	668
1990	159
2000	72
2010	16
2020	4

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

Failure reports by year, as a table

	reports
98	9
99	2
00	3
02	2
03	1
09	1
10	1
17	1

Parts most often reported as the reports name them

Axle6Cylinder4Fork2Spark Plug2Balance Weight1Coil1Pin1Plug1Support1Tube1

Parts most reported, as a table

	reports
Axle	6
Cylinder	4
Fork	2
Spark Plug	2
Balance Weight	1
Coil	1
Pin	1
Plug	1
Support	1
Tube	1

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

Cessna 152 1,545 with this engine series
Piper PA-12 Super Cruiser 878 with this engine series
Piper PA-22 Tri-Pacer and Colt 552 with this engine series
Piper PA-38 Tomahawk 409 with this engine series
Bellanca 7 Citabria 318 with this engine series
Champion 7 Citabria and Champ 311 with this engine series
Grumman American Avn. Corp. AA-1 Yankee and Trainer 305 with this engine series
Piper PA-16 Clipper 252 with this engine series

Where they are

Texas 571 of these aircraft
California 547 of these aircraft
Florida 484 of these aircraft
Alaska 383 of these aircraft
Washington 217 of these aircraft

Biggest operators

Wings Over Texas Holdings LLC 52 of these aircraft
Hillsboro Aero Academy LLC 42 of these aircraft
Sunrise Aviation INC 36 of these aircraft
Piper Aircraft INC 16 of these aircraft
Pea-Wayman Flight LLC 14 of these aircraft

Airworthiness

FAA orders naming the Lycoming O-235 series 13 airworthiness directives
Failure reports on the Lycoming O-235 series 20 reports since 1995

Analytics

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 model	Group	Owner and base	Certificate	Registered	Status
N5724Z	Piper PA-22-108	Fixed-wing, single engine	Kpa LLC Kalamazoo, Michigan	Standard	2024-02-29	Valid
N1643R	Grumman American Avn. Corp. AA-1B	Fixed-wing, single engine	Co-owned owner Indiana	Standard	2024-02-28	Valid
N904WA	Cessna 152	Fixed-wing, single engine	Individual owner Florida	Standard	2024-02-28	Valid
N9546U	Grumman American Avn. Corp. AA-1C	Fixed-wing, single engine	Fletchair INC Comfort, Texas	Standard	2024-02-28	Valid
N506DE	Cessna 152	Fixed-wing, single engine	Aero Fliers LLC Kalispell, Montana	Standard	2024-02-27	Valid
N78635	Piper PA-11	Fixed-wing, single engine	Individual owner Alaska	Standard	2024-02-27	Valid
N24333	Cessna 152	Fixed-wing, single engine	Silver Express CO DBA Miami, Florida	Standard	2024-02-26	Valid
N3511M	Piper PA-12	Fixed-wing, single engine	Black Spruce Aviation LLC Hermon, Maine	Standard	2024-02-26	Valid
N119R	Grumman American Avn. Corp. AA-1C	Fixed-wing, single engine	Individual owner Ohio	Standard	2024-02-25	Valid
N6482M	Cessna 152	Fixed-wing, single engine	Silver Express CO DBA Miami, Florida	Standard	2024-02-23	Valid
N1360R	Grumman American Avn. Corp. AA-1B	Fixed-wing, single engine	Individual owner Mississippi	Standard	2024-02-19	Valid
N3675M	Piper PA-12	Fixed-wing, single engine	Individual owner Virginia	Standard	2024-02-19	Valid
N6150M	Cessna 152	Fixed-wing, single engine	Jprg Aviation INC DBA Orlando, Florida	Standard	2024-02-18	Valid
N9514T	Piper PA-38-112	Fixed-wing, single engine	Individual owner Idaho	Standard	2024-02-18	Valid
N4511Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner California	Standard	2024-02-17	Valid
N4800Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner Montana	Standard	2024-02-17	Valid
N5640H	Piper PA-16	Fixed-wing, single engine	Individual owner New Hampshire	Standard	2024-02-16	Valid
N933AZ	Cessna 152	Fixed-wing, single engine	N933Az LLC Miami, Florida	Standard	2024-02-16	Valid
N5337Z	Piper PA-22-108	Fixed-wing, single engine	Brown Estates Aviation LLC Fresno, California	Standard	2024-02-14	Valid
N714TR	Cessna 152	Fixed-wing, single engine	Individual owner Montana	Standard	2024-02-14	Valid
N275AC	American Champion Aircraft 7ECA	Fixed-wing, single engine	Individual owner Massachusetts	Standard	2024-02-13	Valid
N2925M	Piper PA-12	Fixed-wing, single engine	Individual owner Maryland	Standard	2024-02-13	Valid
N5500Z	Piper PA-22-108	Fixed-wing, single engine	Pfc Aviation Repair INC Wallingford, Connecticut	Standard	2024-02-13	Valid
N5620L	American AA-1	Fixed-wing, single engine	Individual owner Georgia	Standard	2024-02-13	Valid
N64908	Cessna 152	Fixed-wing, single engine	Individual owner South Carolina	Standard	2024-02-13	Valid
N9024L	Champion 7ECA	Fixed-wing, single engine	Vine Grove Airport INC Vine Grove, Kentucky	Standard	2024-02-13	Valid
N757ZN	Cessna 152	Fixed-wing, single engine	Jin Jin Aviation LLC Anchorage, Alaska	Standard	2024-02-12	Valid
N89533	Cessna 152	Fixed-wing, single engine	Individual owner California	Standard	2024-02-11	Valid
N24932	Cessna 152	Fixed-wing, single engine	Silver Express CO DBA Miami, Florida	Standard	2024-02-10	Valid
N5316Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner Utah	Standard	2024-02-09	Valid
N31264	Cryer Donald E PROTECT PT-2	Fixed-wing, single engine	Individual owner Alabama	Experimental	2024-02-08	Valid
N152UC	Cessna 152	Fixed-wing, single engine	Skylink Xpress INC San Bernardino, California	Standard	2024-02-07	Valid
N218ZM	Cessna 152	Fixed-wing, single engine	Skylink Xpress INC San Bernardino, California	Standard	2024-02-07	Valid
N4819Z	Piper PA-22-108	Fixed-wing, single engine	West Coast Air Design LLC Granada Hills, California	Standard	2024-02-05	Valid
N7134K	Piper PA-18 105	Fixed-wing, single engine	Individual owner Oregon	Standard	2024-02-05	Valid
N67864	Cessna 152	Fixed-wing, single engine	Individual owner California	Standard	2024-02-03	Valid
N4136M	Piper PA-12	Fixed-wing, single engine	Individual owner Michigan	Standard	2024-02-01	Valid
N67865	Cessna 152	Fixed-wing, single engine	Laurel Highlands Aeronautical Academy Latrobe, Pennsylvania	Standard	2024-02-01	Valid
N7060K	Piper PA-20	Fixed-wing, single engine	Individual owner Arizona	Standard	2024-02-01	Valid
N41360	Piper J5C	Fixed-wing, single engine	Individual owner Washington	Standard	2024-01-31	Valid
N6309N	Champion 7ECA	Fixed-wing, single engine	Co-owned owner North Dakota	Standard	2024-01-31	Valid
N7632H	Piper PA-12	Fixed-wing, single engine	Individual owner Oregon	Standard	2024-01-31	Valid
N14CS	Grumman American Avn. Corp. AA-1B	Fixed-wing, single engine	Individual owner Florida	Standard	2024-01-30	Valid
N3598M	Piper PA-12	Fixed-wing, single engine	Individual owner Alaska	Standard	2024-01-28	Valid
N24764	Cessna 152	Fixed-wing, single engine	Riya Aviation LLC Tracy, California	Standard	2024-01-24	Valid
N48816	Cessna 152	Fixed-wing, single engine	Individual owner Florida	Standard	2024-01-24	Valid
N5093Q	Cessna 152	Fixed-wing, single engine	Riya Aviation LLC Tracy, California	Standard	2024-01-24	Valid
N68515	Bellanca 7ECA	Fixed-wing, single engine	Gator Flight LLC Saint Cloud, Florida	Standard	2024-01-23	Valid
N2542M	Piper PA-12	Fixed-wing, single engine	Individual owner North Carolina	Standard	2024-01-22	Valid
N2712E	Aeronca 7AC	Fixed-wing, single engine	Co-owned owner Iowa	Standard	2024-01-22	Valid
N1102E	Bellanca 7ECA	Fixed-wing, single engine	Co-owned owner North Carolina	Standard	2024-01-20	Valid
N1809G	Champion 7ECA	Fixed-wing, single engine	Individual owner Texas	Standard	2024-01-20	Valid
N2432M	Piper PA-12	Fixed-wing, single engine	Individual owner Connecticut	Standard	2024-01-20	Valid
N49527	Cessna 152	Fixed-wing, single engine	B&S Aviation LLC Sylvania, Ohio	Standard	2024-01-19	Valid
N309T	Piper PA-18	Fixed-wing, single engine	West Coast Aircraft LLC Carson City, Nevada	Standard	2024-01-17	Valid
N49292	Cessna 152	Fixed-wing, single engine	Individual owner Michigan	Standard	2024-01-17	Valid
N4988H	Piper PA-18-135	Fixed-wing, single engine	Individual owner New York	Special flight permit	2024-01-17	Valid
N6528L	Grumman American Avn. Corp. AA-1B	Fixed-wing, single engine	Co-owned owner Kansas	Standard	2024-01-17	Valid
N656AK	Iverslie Scott P SERIES 5	Fixed-wing, single engine	Individual owner Alaska	Experimental	2024-01-17	Valid
N86PT	Jones Gordon D LONG-EZ	Fixed-wing, single engine	Individual owner California	Experimental	2024-01-17	Valid
N2684G	Champion 7ECA	Fixed-wing, single engine	Individual owner Ohio	Standard	2024-01-16	Valid
N4766B	Cessna 152	Fixed-wing, single engine	4 One Air LLC Holland, Michigan	Standard	2024-01-16	Valid
N682DC	Piper PA-22-108	Fixed-wing, single engine	Steele Aviation INC Walnut Cove, North Carolina	Standard	2024-01-16	Valid
N9525U	Grumman American Avn. Corp. AA-1C	Fixed-wing, single engine	Baloo Flight Holdings LLC Peoria, Arizona	Standard	2024-01-16	Valid
N101BV	Rasmussen-Bushby MIDGET MUSTANG	Fixed-wing, single engine	Individual owner California	Experimental	2024-01-13	Valid
N1EP	English ENGLISH-HATZ CB-1	Fixed-wing, single engine	Individual owner Texas	Experimental	2024-01-12	Valid
N2523B	Piper PA-38-112	Fixed-wing, single engine	Individual owner California	Standard	2024-01-12	Valid
N5618Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner Pennsylvania	Standard	2024-01-12	Valid
N6355L	American Aviation AA-1A	Fixed-wing, single engine	Locklear Steven M Salina, Kansas	Standard	2024-01-10	Valid
N125JB	Browning Jim T MIDGET MUSTANG I	Fixed-wing, single engine	Individual owner Washington	Experimental	2024-01-09	Valid
N1578S	Carlson Steven S KITFOX SERIES 5	Fixed-wing, single engine	Co-owned owner California	Experimental	2024-01-07	Valid
N3361M	Piper PA-12	Fixed-wing, single engine	Individual owner Idaho	Standard	2024-01-06	Valid
N6189L	American AA-1	Fixed-wing, single engine	Individual owner Iowa	Standard	2024-01-06	Valid
N6242L	American AA-1B	Fixed-wing, single engine	Individual owner Texas	Standard	2024-01-04	Valid
N5168Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner Texas	Standard	2024-01-03	Valid
N4526Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner Arizona	Standard	2023-12-31	Valid
N5476Z	Piper PA-22-108	Fixed-wing, single engine	Groom Aircraft Service LLC Brownwood, Texas	Standard	2023-12-31	Valid
N5143X	Champion 7ECA	Fixed-wing, single engine	Co-owned owner Florida	Standard	2023-12-30	Valid
N5448L	Cessna 152	Fixed-wing, single engine	Santorini Services LLC Washington, District of Columbia	Standard	2023-12-30	Valid
N4277M	Piper PA-12	Fixed-wing, single engine	Individual owner Alaska	Standard	2023-12-29	Valid
N53832	Bellanca 7ECA	Fixed-wing, single engine	Individual owner Minnesota	Standard	2023-12-28	Valid
N305DW	Cessna 152	Fixed-wing, single engine	Individual owner Arkansas	Standard	2023-12-27	Valid
N5066G	Bellanca 7ECA	Fixed-wing, single engine	Individual owner Tennessee	Standard	2023-12-27	Valid
N6279M	Cessna 152	Fixed-wing, single engine	Individual owner Arkansas	Standard	2023-12-27	Valid
N714XB	Cessna 152	Fixed-wing, single engine	Wings Over Texas Holdings LLC Denton, Texas	Standard	2023-12-24	Valid
N9975L	Grumman American Avn. Corp. AA-1B	Fixed-wing, single engine	Individual owner California	Standard	2023-12-22	Valid
N2575Z	Bellanca 7ECA	Fixed-wing, single engine	Individual owner Texas	Standard	2023-12-21	Valid
N7580F	Champion 7ECA	Fixed-wing, single engine	Individual owner Washington	Standard	2023-12-21	Valid
N87019	Bellanca 7ECA	Fixed-wing, single engine	Individual owner Maine	Standard	2023-12-21	Valid
N152MM	Cessna 152	Fixed-wing, single engine	Individual owner Texas	Standard	2023-12-20	Valid
N7252L	American Aviation AA-1A	Fixed-wing, single engine	Individual owner Nebraska	Standard	2023-12-20	Valid
N2576F	Champion 7ECA	Fixed-wing, single engine	Individual owner Texas	Standard	2023-12-19	Valid
N6294L	Grumman American Avn. Corp. AA-1B	Fixed-wing, single engine	Individual owner Florida	Standard	2023-12-17	Valid
N5230H	Piper PA-16	Fixed-wing, single engine	Seneca Aeronautical Services LLC Wilmington, Delaware	Standard	2023-12-15	Valid
N49455	Cessna 152	Fixed-wing, single engine	Above All Aviation INC Goleta, California	Standard	2023-12-14	Valid
N9075L	Champion 7ECA	Fixed-wing, single engine	Individual owner Nebraska	Standard	2023-12-14	Valid
N5852Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner Kansas	Standard	2023-12-13	Valid
N67307	Cessna 152	Fixed-wing, single engine	Wings Over Texas Holdings LLC Denton, Texas	Standard	2023-12-13	Valid
N757DF	Cessna 152	Fixed-wing, single engine	Individual owner Texas	Standard	2023-12-13	Valid
N124BM	Jacobson SE5A REPLICA	Fixed-wing, single engine	Pops Space LLC Luther, Oklahoma	Experimental	2023-12-12	Valid

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.