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
N764AF	Schweizer SGM2-37	Fixed-wing, single engine	Individual owner Michigan	Standard	2021-07-28	Valid
N2794M	Piper PA-12	Fixed-wing, single engine	Individual owner Alaska	Standard	2021-07-27	Valid
N5318H	Piper PA-16	Fixed-wing, single engine	Co-owned owner Washington	Standard	2021-07-27	Valid
N5382H	Piper PA-16	Fixed-wing, single engine	Co-owned owner Washington	Standard	2021-07-27	Valid
N9649S	Champion 7ECA	Fixed-wing, single engine	Individual owner Georgia	Standard	2021-07-27	Valid
N6347L	American Aviation AA-1A	Fixed-wing, single engine	Individual owner California	Standard	2021-07-26	Valid
N25998	Cessna 152	Fixed-wing, single engine	Co-owned owner Oklahoma	Standard	2021-07-24	Valid
N2318M	Piper PA-12	Fixed-wing, single engine	Individual owner Alaska	Standard	2021-07-21	Valid
N11667	Bellanca 7ECA	Fixed-wing, single engine	Individual owner Maine	Standard	2021-07-20	Valid
N12NC	Peck Jerome K LONG EZ	Fixed-wing, single engine	Individual owner Kansas	Experimental	2021-07-20	Valid
N2569C	Piper PA-38-112	Fixed-wing, single engine	Individual owner Michigan	Standard	2021-07-20	Valid
N333GH	Piper PA-18-105 SPECIAL	Fixed-wing, single engine	Co-owned owner Nevada	Standard	2021-07-20	Valid
N68234	Cessna 152	Fixed-wing, single engine	Individual owner North Carolina	Standard	2021-07-20	Valid
N946SF	Cessna 152	Fixed-wing, single engine	Snohomish Flying Service INC Snohomish, Washington	Standard	2021-07-15	Valid
N2913	Thalman Joseph B MURPHY REBEL	Fixed-wing, single engine	Brown Engineering Solutions Lafayette, Indiana	Experimental	2021-07-14	Valid
N4596A	Cessna A152	Fixed-wing, single engine	Mlfco LLC Wilmington, Delaware	Standard	2021-07-14	Valid
N9131L	Champion 7ECA	Fixed-wing, single engine	Aeronautical Technical Service INC Collierville, Tennessee	Standard	2021-07-12	Valid
N9277L	American Aviation AA-1A	Fixed-wing, single engine	Co-owned owner Texas	Standard	2021-07-10	Valid
N67701	Cessna 152	Fixed-wing, single engine	R&R Aero Services LLC Eden Prairie, Minnesota	Standard	2021-07-09	Valid
N9088L	Champion 7ECA	Fixed-wing, single engine	Legends LLC Willow, Alaska	Standard	2021-07-09	Valid
N228T	Piper PA-18 105	Fixed-wing, single engine	Wb Aviation LLC Saint Jo, Texas	Standard	2021-07-08	Valid
N2772M	Piper PA-12	Fixed-wing, single engine	Individual owner Florida	Standard	2021-07-08	Valid
N4121M	Piper PA-12	Fixed-wing, single engine	Individual owner Alaska	Standard	2021-07-08	Valid
N757BF	Cessna 152	Fixed-wing, single engine	Old Goat LLC Wilmington, Delaware	Standard	2021-07-08	Valid
N7348B	Cessna A152	Fixed-wing, single engine	Individual owner Arizona	Standard	2021-07-06	Valid
N4598Q	Cessna 152	Fixed-wing, single engine	Abanks Leasing LTD Wilmington, Delaware	Standard	2021-06-30	Valid
N613AM	Aircraft Mfg & Development Co CH 2000	Fixed-wing, single engine	W & A Flight LLC Greenville, South Carolina	Standard	2021-06-29	Valid
N757NG	Cessna 152	Fixed-wing, single engine	Individual owner Kentucky	Standard	2021-06-28	Valid
N2463L	Piper PA-38-112	Fixed-wing, single engine	Individual owner Washington	Standard	2021-06-26	Valid
N527DC	Gregory Donald K SUPER CUB	Fixed-wing, single engine	Individual owner Ohio	Experimental	2021-06-25	Valid
N6092M	Cessna 152	Fixed-wing, single engine	Individual owner Pennsylvania	Standard	2021-06-25	Valid
N2902M	Piper PA-12	Fixed-wing, single engine	Individual owner Idaho	Standard	2021-06-24	Valid
N89390	Cessna 152	Fixed-wing, single engine	Individual owner California	Standard	2021-06-24	Valid
N2426F	Piper PA-38-112	Fixed-wing, single engine	Individual owner Florida	Standard	2021-06-23	Valid
N7562H	Piper PA-12	Fixed-wing, single engine	Grigsby Guy P Glenburn, North Dakota	Standard	2021-06-23	Valid
N2512L	Piper PA-38-112	Fixed-wing, single engine	Individual owner Iowa	Standard	2021-06-17	Valid
N8997L	Grumman American Avn. Corp. AA-1B	Fixed-wing, single engine	Individual owner Illinois	Standard	2021-06-16	Valid
N2580B	Piper PA-38-112	Fixed-wing, single engine	Individual owner Texas	Standard	2021-06-15	Valid
N5736Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner Arizona	Standard	2021-06-14	Valid
N1831S	Beech 77	Fixed-wing, single engine	Individual owner Oregon	Standard	2021-06-11	Valid
N4628Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner Minnesota	Standard	2021-06-11	Valid
N49710	Cessna 152	Fixed-wing, single engine	Individual owner Texas	Standard	2021-06-10	Valid
N8779	Bellanca 7ECA	Fixed-wing, single engine	Co-owned owner Alaska	Standard	2021-06-10	Valid
N49654	Cessna 152	Fixed-wing, single engine	Individual owner Arizona	Standard	2021-06-09	Valid
N9416L	American Aviation AA-1A	Fixed-wing, single engine	Co-owned owner Texas	Standard	2021-06-09	Valid
N9430L	American Aviation AA-1A	Fixed-wing, single engine	Individual owner Oregon	Standard	2021-06-08	Valid
N61TP	Piper PA-22-108	Fixed-wing, single engine	Co-owned owner Tennessee	Standard	2021-06-07	Valid
N8390V	Champion 7ECA	Fixed-wing, single engine	Individual owner West Virginia	Standard	2021-06-07	Valid
N9489L	American Aviation AA-1A	Fixed-wing, single engine	Co-owned owner Oklahoma	Standard	2021-06-07	Valid
N115SC	Aeronca 11BC	Fixed-wing, single engine	Individual owner Texas	Standard	2021-06-05	Valid
N71625	Luscombe 8E	Fixed-wing, single engine	Individual owner Oregon	Standard	2021-06-04	Valid
N29TM	Montague Thomas W LONG EZ	Fixed-wing, single engine	Individual owner Michigan	Experimental	2021-06-03	Valid
N4597Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner Florida	Standard	2021-06-03	Valid
N6398P	Cessna 152	Fixed-wing, single engine	Co-owned owner Illinois	Standard	2021-06-03	Valid
N5809Z	Piper PA-22-108	Fixed-wing, single engine	Co-owned owner California	Standard	2021-06-02	Valid
N3784M	Piper PA-12	Fixed-wing, single engine	Gtf Aviation LLC Fryeburg, Maine	Standard	2021-06-01	Valid
N3972M	Piper PA-12	Fixed-wing, single engine	Intricate Bay Operating LLC Saylorsburg, Pennsylvania	Standard	2021-05-28	Valid
N70HA	Strauch H/Strauch A FUNEZE	Fixed-wing, single engine	Individual owner Oregon	Experimental	2021-05-27	Valid
N2450N	Piper PA-38-112	Fixed-wing, single engine	Co-owned owner Missouri	Standard	2021-05-26	Valid
N25567	Cessna 152	Fixed-wing, single engine	Individual owner Massachusetts	Standard	2021-05-26	Valid
N2288K	Steele-John 1/2 SCALE P-47	Fixed-wing, single engine	Individual owner Alabama	Experimental	2021-05-24	Valid
N25895	Piper PA-38-112	Fixed-wing, single engine	Withheld at owner's request	Standard	2021-05-24	Valid
N3809U	Beech 77	Fixed-wing, single engine	Individual owner Ohio	Standard	2021-05-24	Valid
N3537M	Piper PA-12	Fixed-wing, single engine	Individual owner Texas	Standard	2021-05-22	Valid
N3357M	Piper PA-12	Fixed-wing, single engine	Individual owner Alabama	Standard	2021-05-21	Valid
N4950A	Cessna A152	Fixed-wing, single engine	Individual owner Kentucky	Standard	2021-05-21	Valid
N6486L	Cessna 152	Fixed-wing, single engine	Individual owner Connecticut	Standard	2021-05-21	Valid
N2491F	Piper PA-38-112	Fixed-wing, single engine	Individual owner Hawaii	Standard	2021-05-20	Valid
N9097L	Champion 7ECA	Fixed-wing, single engine	Individual owner Alaska	Standard	2021-05-20	Valid
N511CE	Wendell Kirk Ellis KE SPECIAL SPARROW	Fixed-wing, single engine	Co-owned owner Alaska	Experimental	2021-05-19	Valid
N1448R	Grumman American Avn. Corp. AA-1B	Fixed-wing, single engine	Individual owner Arizona	Standard	2021-05-18	Valid
N3563M	Piper PA-12	Fixed-wing, single engine	International Air Services INC Trustee Carson City, Nevada	Standard	2021-05-17	Valid
N38062	Beech 77	Fixed-wing, single engine	Individual owner Nevada	Standard	2021-05-17	Valid
N5229B	Cessna 152	Fixed-wing, single engine	Individual owner Wisconsin	Standard	2021-05-17	Valid
N525HF	Cessna 152	Fixed-wing, single engine	Vintage Wings Aircraft LLC Center Point, Indiana	Standard	2021-05-17	Valid
N5317Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner Ohio	Standard	2021-05-15	Valid
N9559U	Grumman American Avn. Corp. AA-1C	Fixed-wing, single engine	Individual owner California	Standard	2021-05-14	Valid
N9884L	Grumman American Avn. Corp. AA-1B	Fixed-wing, single engine	Individual owner Florida	Standard	2021-05-13	Valid
N2772G	Champion 7ECA	Fixed-wing, single engine	Co-owned owner Louisiana	Standard	2021-05-12	Valid
N5587Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner Florida	Standard	2021-05-12	Valid
N2926W	Cessna 152	Fixed-wing, single engine	Individual owner North Carolina	Standard	2021-05-11	Valid
N2325M	Piper PA-12	Fixed-wing, single engine	Individual owner Florida	Standard	2021-05-10	Valid
N3316M	Piper PA-12	Fixed-wing, single engine	Hickey Aero Services LLC White Hills, Arizona	Standard	2021-05-10	Valid
N25514	Cessna 152	Fixed-wing, single engine	Individual owner North Dakota	Standard	2021-05-08	Valid
N2977G	Champion 7ECA	Fixed-wing, single engine	Five Aviators LLC Austin, Texas	Standard	2021-05-06	Valid
N6AD	Piper PA-12	Fixed-wing, single engine	Individual owner Texas	Standard	2021-05-06	Valid
N8503	Bellanca 7ECA	Fixed-wing, single engine	Co-owned owner Indiana	Standard	2021-05-05	Valid
N5238Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner Illinois	Standard	2021-05-04	Valid
N9976T	Piper PA-38-112	Fixed-wing, single engine	Individual owner Texas	Standard	2021-05-03	Valid
N50437	Bellanca 7ECA	Fixed-wing, single engine	Co-owned owner Oregon	Standard	2021-05-01	Valid
N7276K	Piper PA-18	Fixed-wing, single engine	Individual owner Texas	Multiple	2021-04-26	Valid
N3009M	Piper PA-12	Fixed-wing, single engine	Individual owner Minnesota	Standard	2021-04-24	Valid
N757FD	Cessna 152	Fixed-wing, single engine	R&R Aero Services LLC Eden Prairie, Minnesota	Standard	2021-04-24	Valid
N69045	Cessna 152	Fixed-wing, single engine	Eburg Aero LLC Ellensburg, Washington	Standard	2021-04-21	Valid
N4003M	Piper PA-12	Fixed-wing, single engine	Individual owner California	Standard	2021-04-19	Valid
N66971	Cessna 152	Fixed-wing, single engine	Meridian Airport Authority Meridian, Mississippi	Standard	2021-04-19	Valid
N7883T	Taylorcraft F22A	Fixed-wing, single engine	Marlu Enterprises INC Foristell, Missouri	Standard	2021-04-17	Valid
N92140	Cessna 152	Fixed-wing, single engine	Poplar Grove Airmotive INC Poplar Grove, Illinois	Standard	2021-04-17	Valid
N12VG	American Aviation AA-1A	Fixed-wing, single engine	Individual owner Maine	Standard	2021-04-16	Valid
N5981L	American AA-1	Fixed-wing, single engine	Individual owner Michigan	Standard	2021-04-16	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.