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
N424RB	Bernhardt Ralph K KIS KIT 018	Fixed-wing, single engine	Individual owner Texas	Experimental	2014-07-07	Valid
N924C	Harrison Charles D K1S-1	Fixed-wing, single engine	Co-owned owner Oklahoma	Experimental	2014-07-03	Valid
N2020B	Luscombe 8E	Fixed-wing, single engine	Individual owner Pennsylvania	Standard	2014-07-01	Valid
N4296M	Piper PA-12	Fixed-wing, single engine	Individual owner Idaho	Standard	2014-07-01	Valid
N198RS	Smith Ronald J WAG-A-BOND	Fixed-wing, single engine	Individual owner Washington	Experimental	2014-06-26	Valid
N5433Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner Texas	Standard	2014-06-25	Valid
N7636S	Bellanca 7ECA	Fixed-wing, single engine	Prt Aviation LLC Port Orange, Florida	Standard	2014-06-23	Valid
N7218K	Piper PA-18-105 SPECIAL	Fixed-wing, single engine	Individual owner Connecticut	Standard	2014-06-19	Valid
N4652Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner Illinois	Standard	2014-06-18	Valid
N68334	Cessna 152	Fixed-wing, single engine	University of Michigan Flyers Ann Arbor, Michigan	Standard	2014-06-16	Valid
N7622H	Piper PA-12	Fixed-wing, single engine	Individual owner Michigan	Standard	2014-06-11	Valid
N2397M	Piper PA-12	Fixed-wing, single engine	Barnstormers Aerial Advertising LLC North Myrtle Beach, South Carolina	Standard	2014-06-09	Valid
N9025L	Champion 7ECA	Fixed-wing, single engine	Mcmillan Custom Service INC Ulmer, South Carolina	Standard	2014-06-05	Valid
N5859Z	Piper PA-22-108	Fixed-wing, single engine	International Air Services INC Trustee Carson City, Nevada	Standard	2014-06-04	Valid
N9974T	Piper PA-38-112	Fixed-wing, single engine	Argos Retail LLC Mcallen, Texas	Standard	2014-06-03	Valid
N757KF	Cessna 152	Fixed-wing, single engine	Bob Hoover Academy Salinas, California	Multiple	2014-05-30	Valid
N88914	Spencer BAKENG DUCE	Fixed-wing, single engine	Individual owner Florida	Experimental	2014-05-30	Valid
N127GS	Piper PA-12	Fixed-wing, single engine	Individual owner Alaska	Standard	2014-05-29	Valid
N10VF	Cessna 152	Fixed-wing, single engine	Ace Aircraft Leasing INC Nazareth, Pennsylvania	Standard	2014-05-28	Valid
N25899	Cessna 152	Fixed-wing, single engine	Ace Aircraft Leasing INC Nazareth, Pennsylvania	Standard	2014-05-28	Valid
N757MG	Cessna 152	Fixed-wing, single engine	Ohio Gypsum Floors LLC Westerville, Ohio	Standard	2014-05-28	Valid
N7583F	Champion 7ECA	Fixed-wing, single engine	Individual owner Illinois	Standard	2014-05-27	Valid
N12GK	Kelley John W SPACEWALKER II	Fixed-wing, single engine	Spacewalker 2 LLC Ocala, Florida	Experimental	2014-05-23	Valid
N4947Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner North Dakota	Standard	2014-05-23	Valid
N2853M	Piper PA-12	Fixed-wing, single engine	H&M Aviation Hazelton, North Dakota	Standard	2014-05-22	Valid
N3213N	Piper J-3	Fixed-wing, single engine	Withheld at owner's request	Standard	2014-05-21	Valid
N1648R	Grumman American Avn. Corp. AA-1B	Fixed-wing, single engine	Individual owner Georgia	Standard	2014-05-19	Valid
N331CM	Mersky Milton BREEZY	Fixed-wing, single engine	Individual owner Texas	Experimental	2014-05-19	Valid
N5770H	Piper PA-16	Fixed-wing, single engine	Individual owner Colorado	Standard	2014-05-19	Valid
N3818Z	Beech 77	Fixed-wing, single engine	Individual owner Oklahoma	Standard	2014-05-16	Valid
N6136L	American AA-1	Fixed-wing, single engine	Individual owner South Carolina	Standard	2014-05-14	Valid
N7748H	Piper PA-12	Fixed-wing, single engine	Individual owner New York	Standard	2014-05-13	Valid
N206T	Piper PA-18-105 SPECIAL	Fixed-wing, single engine	Individual owner Oklahoma	Standard	2014-05-12	Valid
N5418Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner Texas	Standard	2014-05-06	Valid
N622J	Cougar JH-1	Fixed-wing, single engine	Individual owner California	Experimental	2014-05-06	Valid
N8306V	Champion 7ECA	Fixed-wing, single engine	Individual owner Wyoming	Standard	2014-05-06	Valid
N5266L	Cessna 152	Fixed-wing, single engine	Co-owned owner California	Standard	2014-04-28	Valid
N1179E	Bellanca 7ECA	Fixed-wing, single engine	Plane Air LLC Paducah, Kentucky	Standard	2014-04-24	Valid
N2836M	Piper PA-12	Fixed-wing, single engine	Individual owner Oregon	Standard	2014-04-24	Valid
N6139M	Cessna 152	Fixed-wing, single engine	Individual owner Washington	Standard	2014-04-22	Valid
N349B	Bozell KELERHER LARK JK-1B	Fixed-wing, single engine	Individual owner Indiana	Experimental	2014-04-15	Valid
N2903M	Piper PA-12	Fixed-wing, single engine	Co-owned owner Wisconsin	Standard	2014-04-10	Valid
N4611Z	Piper PA-22-108	Fixed-wing, single engine	Richard Waldren LLC Newberg, Oregon	Standard	2014-04-10	Valid
N94532	Cessna 152	Fixed-wing, single engine	Oklahoma State University Stillwater, Oklahoma	Standard	2014-04-10	Valid
N89661	Cessna 152	Fixed-wing, single engine	Individual owner Oregon	Standard	2014-04-09	Valid
N93166	Cessna 152	Fixed-wing, single engine	Individual owner Oregon	Standard	2014-04-09	Valid
N9494G	Cessna 152	Fixed-wing, single engine	Individual owner Oregon	Standard	2014-04-09	Valid
N24884	Cessna 152	Fixed-wing, single engine	Bravo Victor LLC Afton, Wyoming	Standard	2014-04-08	Valid
N7614H	Piper PA-12	Fixed-wing, single engine	Command Aire LLC Sitka, Alaska	Standard	2014-04-08	Valid
N119PB	Barney Robert H EAA BIPLANE P-1	Fixed-wing, single engine	Individual owner Washington	Experimental	2014-04-07	Valid
N413RB	Dunaway Richard M REBEL	Fixed-wing, single engine	Individual owner Alaska	Experimental	2014-04-04	Valid
N4288M	Piper PA-12	Fixed-wing, single engine	My Holdings INC Anchorage, Alaska	Standard	2014-04-04	Valid
N11695	Bellanca 7ECA	Fixed-wing, single engine	Rvi Aviation LLC Clay Center, Kansas	Standard	2014-04-03	Valid
N78828	Piper PA-11	Fixed-wing, single engine	Individual owner Alaska	Standard	2014-04-02	Valid
N4765Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner South Dakota	Standard	2014-04-01	Valid
N4951B	Cessna 152	Fixed-wing, single engine	Individual owner Pennsylvania	Standard	2014-04-01	Valid
N20UC	Ostrem Frederick S LANCAIR 235	Fixed-wing, single engine	Individual owner Arkansas	Experimental	2014-03-31	Valid
N3809Y	Beech 77	Fixed-wing, single engine	Co-owned owner Texas	Standard	2014-03-31	Valid
N592RJ	Champion 7ECA	Fixed-wing, single engine	Individual owner North Carolina	Standard	2014-03-28	Valid
N48068	Cessna 152	Fixed-wing, single engine	Ikarus Aviation LLC Salt Lake City, Utah	Standard	2014-03-27	Valid
N3782M	Piper PA-12	Fixed-wing, single engine	Mills Air Service INC Marstons Mills, Massachusetts	Standard	2014-03-26	Valid
N5119T	Champion 7ECA	Fixed-wing, single engine	Amelia Reid Aviation LLC San Jose, California	Standard	2014-03-26	Valid
N6425Q	Cessna 152	Fixed-wing, single engine	Sun Aircraft Management LLC Ormond Beach, Florida	Standard	2014-03-25	Valid
N39038	Grumman American Avn. Corp. AA-1C	Fixed-wing, single engine	Co-owned owner Missouri	Standard	2014-03-24	Valid
N2547M	Piper PA-12	Fixed-wing, single engine	Co-owned owner Delaware	Standard	2014-03-19	Valid
N9022L	Champion 7ECA	Fixed-wing, single engine	Individual owner New Jersey	Standard	2014-03-19	Valid
N27RB	Bassett Ronald E EMERAUDE CP-310	Fixed-wing, single engine	Individual owner Indiana	Experimental	2014-03-17	Valid
N35374	Piper J5A	Fixed-wing, single engine	Individual owner Oregon	Standard	2014-03-17	Valid
N2489M	Piper PA-12	Fixed-wing, single engine	Individual owner Massachusetts	Standard	2014-03-14	Valid
N4182M	Piper PA-12	Fixed-wing, single engine	Individual owner Alaska	Standard	2014-03-14	Valid
N540GT	Grumman American Avn. Corp. AA-1B	Fixed-wing, single engine	Individual owner New York	Standard	2014-03-13	Valid
N5572Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner Alabama	Standard	2014-03-13	Valid
N9246L	American Aviation AA-1A	Fixed-wing, single engine	Individual owner Florida	Standard	2014-03-13	Valid
N714WE	Cessna 152	Fixed-wing, single engine	Cirrus INC Wilmington, Delaware	Standard	2014-03-12	Valid
N9369T	Piper PA-38-112	Fixed-wing, single engine	Individual owner Arizona	Standard	2014-03-12	Valid
N3394M	Piper PA-12	Fixed-wing, single engine	Co-owned owner New Mexico	Standard	2014-03-06	Valid
N90915	Bellanca 7ECA	Fixed-wing, single engine	Cnj Flying INC Flossmoor, Illinois	Standard	2014-02-28	Valid
N95639	Cessna 152	Fixed-wing, single engine	Individual owner Ohio	Standard	2014-02-27	Valid
N67383	Cessna 152	Fixed-wing, single engine	Individual owner North Carolina	Standard	2014-02-26	Valid
N7508K	Piper PA-18	Fixed-wing, single engine	Withheld at owner's request	Standard	2014-02-25	Valid
N6115L	American AA-1	Fixed-wing, single engine	Individual owner Tennessee	Standard	2014-02-21	Valid
N4027H	Piper PA-12	Fixed-wing, single engine	Individual owner South Dakota	Standard	2014-02-20	Valid
N4435M	Piper PA-12	Fixed-wing, single engine	Individual owner North Carolina	Standard	2014-02-18	Valid
N5521Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner Virginia	Multiple	2014-02-18	Valid
N5919L	American AA-1	Fixed-wing, single engine	Individual owner Tennessee	Standard	2014-02-18	Valid
N9645U	Grumman American Avn. Corp. AA-1C	Fixed-wing, single engine	Individual owner Minnesota	Standard	2014-02-14	Valid
N4995Z	Piper PA-22-108	Fixed-wing, single engine	Individual owner Ohio	Standard	2014-02-13	Valid
N221Y	American AA-1	Fixed-wing, single engine	Individual owner Washington	Standard	2014-02-12	Valid
N3730S	Beech 77	Fixed-wing, single engine	Individual owner Arkansas	Standard	2014-02-12	Valid
N5177X	Champion 7ECA	Fixed-wing, single engine	Individual owner Illinois	Standard	2014-02-11	Valid
N6205L	American AA-1B	Fixed-wing, single engine	Co-owned owner Massachusetts	Standard	2014-02-10	Valid
N7140B	Cessna A152	Fixed-wing, single engine	Individual owner Ohio	Standard	2014-02-04	Valid
N9427L	American Aviation AA-1A	Fixed-wing, single engine	Individual owner Florida	Standard	2014-02-04	Valid
N3171M	Piper PA-12	Fixed-wing, single engine	Individual owner California	Standard	2014-02-03	Valid
N89090	Cessna 152	Fixed-wing, single engine	Individual owner Texas	Standard	2014-01-30	Valid
N9437L	American Aviation AA-1A	Fixed-wing, single engine	Individual owner Arizona	Standard	2014-01-23	Valid
N98927	Piper PA-12	Fixed-wing, single engine	Individual owner Florida	Standard	2014-01-21	Valid
N218MA	Anderson Merle M.A. 18	Fixed-wing, single engine	Individual owner Pennsylvania	Experimental	2014-01-16	Valid
N3748M	Piper PA-12	Fixed-wing, single engine	Individual owner North Dakota	Standard	2014-01-16	Valid
N1421R	Grumman American Avn. Corp. AA-1B	Fixed-wing, single engine	Co-owned owner California	Standard	2014-01-14	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.