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
N4566Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner Oregon	Standard	2017-06-21	Valid
N5682L	American AA-1	Fixed-wing, single engine	Individual owner Minnesota	Standard	2017-06-21	Valid
N3840M	Piper PA-12	Fixed-wing, single engine	Individual owner Wisconsin	Standard	2017-06-19	Valid
N9679S	Champion 7ECA	Fixed-wing, single engine	Co-owned owner Utah	Standard	2017-06-01	Valid
N5239B	Cessna 152	Fixed-wing, single engine	Co-owned owner Massachusetts	Standard	2017-05-25	Valid
N757DE	Cessna 152	Fixed-wing, single engine	Individual owner Arizona	Standard	2017-05-24	Valid
N78447	Piper PA-12	Fixed-wing, single engine	Co-owned owner Montana	Standard	2017-05-24	Valid
N24763	Cessna 152	Fixed-wing, single engine	Big South Fork Aerospace LLC Pine Knot, Kentucky	Standard	2017-05-23	Valid
N757ZR	Cessna 152	Fixed-wing, single engine	Bishops' LTD Virginia Beach, Virginia	Standard	2017-05-22	Valid
N5561Z	Piper PA-22-108	Fixed-wing, single engine	Co-owned owner South Dakota	Standard	2017-05-19	Valid
N152GB	Cessna 152	Fixed-wing, single engine	Hillsboro Aero Academy LLC Hillsboro, Oregon	Standard	2017-05-18	Valid
N46826	Cessna 152	Fixed-wing, single engine	Jpo Aviation LLC Kalispell, Montana	Standard	2017-05-18	Valid
N530EZ	Baxter Matthew C LONG EZ	Fixed-wing, single engine	Individual owner Washington	Experimental	2017-05-17	Valid
N24133	Piper PA-38-112	Fixed-wing, single engine	Individual owner Kentucky	Standard	2017-05-16	Valid
N25596	Piper PA-38-112	Fixed-wing, single engine	Individual owner Kentucky	Standard	2017-05-16	Valid
N235MK	Kearsley Michael KITFOX V	Fixed-wing, single engine	Individual owner Utah	Experimental	2017-05-15	Valid
N154JB	Cessna 152	Fixed-wing, single engine	Individual owner Alaska	Standard	2017-05-09	Valid
N24486	Cessna 152	Fixed-wing, single engine	Individual owner California	Standard	2017-05-09	Valid
N3771Z	Interstate S-1B1	Fixed-wing, single engine	Co-owned owner Ohio	Standard	2017-05-09	Valid
N2536Z	Bellanca 7ECA	Fixed-wing, single engine	Individual owner Washington	Standard	2017-05-08	Valid
N52271	Monocoupe 90AF	Fixed-wing, single engine	Horizon Aviation Seneca, Pennsylvania	Standard	2017-05-08	Valid
N14SK	Cessna 152	Fixed-wing, single engine	Hillsboro Aero Academy LLC Hillsboro, Oregon	Standard	2017-05-04	Valid
N152BM	Cessna A152	Fixed-wing, single engine	Pluska Paul Hansville, Washington	Standard	2017-05-04	Valid
N6383N	Champion 7ECA	Fixed-wing, single engine	Co-owned owner Washington	Standard	2017-05-02	Valid
N220ML	Champion 7ECA	Fixed-wing, single engine	Co-owned owner Georgia	Standard	2017-05-01	Valid
N238T	Piper PA-18	Fixed-wing, single engine	Co-owned owner Minnesota	Standard	2017-05-01	Valid
N324T	Piper PA-18-105 SPECIAL	Fixed-wing, single engine	Individual owner Tennessee	Standard	2017-05-01	Valid
N5030Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner Virginia	Standard	2017-04-26	Valid
N5366M	Cessna 152	Fixed-wing, single engine	Hillsboro Aero Academy LLC Hillsboro, Oregon	Standard	2017-04-25	Valid
N7663H	Piper PA-12	Fixed-wing, single engine	Individual owner Alaska	Standard	2017-04-24	Valid
N78594	Piper PA-12	Fixed-wing, single engine	Individual owner Illinois	Standard	2017-04-24	Valid
N83RT	Odiorne Roger T LONG EZ	Fixed-wing, single engine	Individual owner Texas	Experimental	2017-04-24	Valid
N7817H	Piper PA-12	Fixed-wing, single engine	Individual owner New York	Standard	2017-04-20	Valid
N2563D	Piper PA-38-112	Fixed-wing, single engine	Individual owner Wyoming	Standard	2017-04-19	Valid
N269T	Piper PA-18 105	Fixed-wing, single engine	Individual owner Alaska	Standard	2017-04-19	Valid
N5261Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner Louisiana	Standard	2017-04-19	Valid
N25836	Cessna 152	Fixed-wing, single engine	Hillsboro Aero Academy LLC Hillsboro, Oregon	Standard	2017-04-18	Valid
N48900	Cessna 152	Fixed-wing, single engine	Smtm Holdings INC Wilmington, Delaware	Standard	2017-04-11	Valid
N714VN	Cessna 152	Fixed-wing, single engine	Co-owned owner Montana	Standard	2017-04-10	Valid
N7813H	Piper PA-12	Fixed-wing, single engine	Co-owned owner Washington	Standard	2017-04-10	Valid
N7519K	Piper PA-18	Fixed-wing, single engine	Erickson Roger Hamill, South Dakota	Standard	2017-04-03	Valid
N6339M	Cessna 152	Fixed-wing, single engine	Flight World INC San Juan, Puerto Rico	Standard	2017-03-28	Valid
N3027M	Piper PA-12	Fixed-wing, single engine	Individual owner Maine	Standard	2017-03-23	Valid
N422CJ	Leturgey James D LONG EZE	Fixed-wing, single engine	Individual owner Tennessee	Experimental	2017-03-13	Valid
N6869K	Piper PA-16	Fixed-wing, single engine	Individual owner Arizona	Standard	2017-03-13	Valid
N6283H	Piper J3C-65	Fixed-wing, single engine	Co-owned owner Kansas	None on file	2017-03-09	Valid
N5253H	Piper PA-16	Fixed-wing, single engine	Individual owner Iowa	Standard	2017-03-07	Valid
N6845K	Piper PA-16	Fixed-wing, single engine	Individual owner North Carolina	Standard	2017-03-06	Valid
N6204P	Cessna 152	Fixed-wing, single engine	Individual owner Arizona	Standard	2017-03-02	Valid
N21L	Miniplane BNF	Fixed-wing, single engine	Individual owner Idaho	Experimental	2017-03-01	Valid
N3155M	Piper PA-12	Fixed-wing, single engine	Individual owner Alaska	Standard	2017-03-01	Valid
N4364M	Piper PA-12	Fixed-wing, single engine	Co-owned owner Ohio	Standard	2017-03-01	Valid
N2412L	Piper PA-38-112	Fixed-wing, single engine	Individual owner Arizona	Standard	2017-02-28	Valid
N4978B	Cessna 152	Fixed-wing, single engine	Spring City Aviation East LLC Oconomowoc, Wisconsin	Standard	2017-02-27	Valid
N68956	Cessna 152	Fixed-wing, single engine	Spartan Education LLC Tulsa, Oklahoma	Standard	2017-02-27	Valid
N6883K	Piper PA-16	Fixed-wing, single engine	Drb Helicopters LLC Klamath Falls, Oregon	Standard	2017-02-24	Valid
N5305H	Piper PA-16	Fixed-wing, single engine	Individual owner California	Standard	2017-02-22	Valid
N62977	Bellanca 7ECA	Fixed-wing, single engine	Individual owner Ohio	Standard	2017-02-22	Valid
N87DM	Moore Darrell Dwayne RUTAN LONG EZ	Fixed-wing, single engine	Individual owner Tennessee	Experimental	2017-02-22	Valid
N5265L	Cessna 152	Fixed-wing, single engine	Hillsboro Aero Academy LLC Hillsboro, Oregon	Standard	2017-02-21	Valid
N5243H	Piper PA-16	Fixed-wing, single engine	Individual owner Michigan	Standard	2017-02-14	Valid
N67567	Cessna 152	Fixed-wing, single engine	Individual owner California	Standard	2017-02-14	Valid
N1581	Pitts Special S-1C	Fixed-wing, single engine	California Antique Aircraft Museum DBA San Martin, California	Experimental	2017-02-13	Valid
N5025U	Bellanca 7ECA	Fixed-wing, single engine	Individual owner Texas	Standard	2017-02-13	Valid
N108T	Piper PA-18-105 SPECIAL	Fixed-wing, single engine	Individual owner South Dakota	Standard	2017-02-10	Valid
N86CS	Evans Thomas N LONG-EZ	Fixed-wing, single engine	Individual owner Alabama	Experimental	2017-02-07	Valid
N5570Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner New York	Standard	2017-02-06	Valid
N5758Z	Piper PA-22-108	Fixed-wing, single engine	Colt 135 LLC Lexington, Nebraska	Standard	2017-02-06	Valid
N5603Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner South Carolina	Standard	2017-02-01	Valid
N8331V	Champion 7ECA	Fixed-wing, single engine	Airplane Binnis LLC Janesville, Wisconsin	Standard	2017-02-01	Valid
N9775T	Piper PA-38-112	Fixed-wing, single engine	Individual owner Texas	Standard	2017-02-01	Valid
N5134	Eaa BIPLANE	Fixed-wing, single engine	Individual owner Texas	Experimental	2017-01-31	Valid
N91325	Piper PA-38-112	Fixed-wing, single engine	Individual owner California	Standard	2017-01-31	Valid
N46803	Cessna 152	Fixed-wing, single engine	Ken Graham Phd INC Sioux Falls, South Dakota	Standard	2017-01-27	Valid
N4673Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner Idaho	Standard	2017-01-26	Valid
N757JX	Cessna 152	Fixed-wing, single engine	Hillsboro Aero Academy LLC Hillsboro, Oregon	Standard	2017-01-26	Valid
N4213M	Piper PA-12	Fixed-wing, single engine	Individual owner New York	Standard	2017-01-25	Valid
N5072Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner Indiana	Standard	2017-01-25	Valid
N24137	Mcclish FUNK B	Fixed-wing, single engine	Individual owner Kansas	Standard	2017-01-24	Valid
N4860Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner Kansas	Standard	2017-01-24	Valid
N51539	Piper J-3	Fixed-wing, single engine	Van Wagner Aerial Media LLC Pembroke Pines, Florida	Restricted	2017-01-24	Valid
N8501Q	Aircraft Mfg & Development Co CH 2000	Fixed-wing, single engine	Individual owner Colorado	Standard	2017-01-24	Valid
N5002Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner Oregon	Standard	2017-01-23	Valid
N6454M	Cessna 152	Fixed-wing, single engine	Individual owner Georgia	Standard	2017-01-19	Valid
N9634L	Grumman American Avn. Corp. AA-1B	Fixed-wing, single engine	Individual owner Georgia	Standard	2017-01-13	Valid
N3255Q	Cessna 152	Fixed-wing, single engine	Individual owner Oregon	Standard	2017-01-11	Valid
N8337V	Champion 7ECA	Fixed-wing, single engine	Individual owner Arizona	Standard	2017-01-11	Valid
N9191L	Bellanca 7ECA	Fixed-wing, single engine	Individual owner Tennessee	Standard	2017-01-11	Valid
N3311M	Piper PA-12	Fixed-wing, single engine	Individual owner Washington	Standard	2017-01-10	Valid
N6709L	Beech 77	Fixed-wing, single engine	Co-owned owner New Mexico	Standard	2017-01-10	Valid
N757TL	Cessna 152	Fixed-wing, single engine	Sky Candy LLC Scottsdale, Arizona	Standard	2017-01-10	Valid
N9737T	Piper PA-38-112	Fixed-wing, single engine	Bayview Flying Club LLC Milwaukee, Wisconsin	Standard	2017-01-04	Valid
N242EE	Piper PA-38-112	Fixed-wing, single engine	Individual owner North Carolina	Standard	2017-01-03	Valid
N65583	Cessna 152	Fixed-wing, single engine	Meridian Airport Authority Meridian, Mississippi	Standard	2017-01-03	Valid
N24714	Cessna 152	Fixed-wing, single engine	Individual owner Washington	Standard	2016-12-29	Valid
N135WA	Cessna 152	Fixed-wing, single engine	Individual owner Texas	Standard	2016-12-23	Valid
N757AD	Cessna 152	Fixed-wing, single engine	Long Island Aviators LLC Seaford, New York	Standard	2016-12-23	Valid
N3469M	Piper PA-12	Fixed-wing, single engine	Co-owned owner Colorado	Standard	2016-12-21	Valid
N5038C	Bellanca 7ECA	Fixed-wing, single engine	Co-owned owner Georgia	Standard	2016-12-21	Valid
N4767Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner North Dakota	Multiple	2016-12-19	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.