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

Continental O-300 series

6,623 aircraft on the U.S. register carry a Continental O-300 series engine, rated at about 145 horsepower. The Cessna 172 Skyhawk is the model most often fitted with it (6,073 aircraft). The aircraft carrying it were built between 1949 and 2021.

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 Continental O-300 series. FAA spelling: 0-300 SER.

When the aircraft were built by decade

By decade built, as a table
aircraft
194062
19501,889
19603,524
197014
19803
19902
20003
20201

What the FAA has certified, ordered and been told about the Continental O-300 series the component layer

The design is held under 1 type certificate (E-253, held by Continental Aerospace Technologies, INC.). The FAA has issued 7 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 38 failure reports with the FAA since 1995, 5 of them in the last ten years.

FAA orders 7 airworthiness directives · newest first

2023-10-262023-17-04 · Reciprocating Engine Oil System · engine
2022-03-292022-04-04 · Reciprocating Engine Oil System · engine
2012-01-242011-26-07 · Engine · engine
2002-07-122002-13-04 · Magneto impulse coupling stop pin · engine
1996-02-1394-05-05 R1 · Cylinder Rocker · engine
1993-08-1293-10-02 · Missing Cylinder Valve Retainer Key · engine

All orders naming the Continental O-300 series

Failure reports 38 since · what operators and shops told the FAA

025810960511219
Failure reports by year, as a table
reports
961
013
024
0310
043
052
062
075
082
091
111
121
131
192

Parts most often reported as the reports name them

Baffle4Cylinder3Bulkhead2Connecting Rod2Stringer2Wheel2Adapter1Axle1Battery1Bearing Cage1
Parts most reported, as a table
reports
Baffle4
Cylinder3
Bulkhead2
Connecting Rod2
Stringer2
Wheel2
Adapter1
Axle1
Battery1
Bearing Cage1

Latest reports

2019-11-19Line: broken
2019-05-10Cylinder: cracked
2013-02-22Counterweight: loose
2012-07-10Cylinder: cracked
2011-08-08Cylinder: broken

Certificates and bulletins

E-253Type certificate held by Continental Aerospace Technologies, INC. · 8 models listed · revised September 19, 2022

Safety bulletins 3 · advice, not orders

2018-09-10NE-18-27 · POWERPLANT Rocker Shaft Boss Inspection
2016-03-08NE-16-13 · Powerplant - Prohibited use of sealant
2012-10-31NE-13-04 · Continental Motors, Inc. (CMI) Connecting Rod Piston Pin Bushing Inspection

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/continental-o-300-series.json.

Aircraft newest certificates first · 6,623

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N7593X Cessna
172B
Fixed-wing, single engine Individual owner
Ohio
Standard 2018-12-04 ValidFAA registration status code V: Valid registration. All codes
N8396X Cessna
172C
Fixed-wing, single engine Co-owned owner
Washington
Standard 2018-12-04 ValidFAA registration status code V: Valid registration. All codes
N1644Y Cessna
172C
Fixed-wing, single engine Individual owner
Wisconsin
Standard 2018-12-03 ValidFAA registration status code V: Valid registration. All codes
N8626U Cessna
172F
Fixed-wing, single engine Co-owned owner
California
Standard 2018-12-03 ValidFAA registration status code V: Valid registration. All codes
N5714A Cessna
172
Fixed-wing, single engine Individual owner
New Mexico
Standard 2018-12-01 ValidFAA registration status code V: Valid registration. All codes
N8635B Cessna
172
Fixed-wing, single engine Co-owned owner
Nevada
Standard 2018-12-01 ValidFAA registration status code V: Valid registration. All codes
N3093U Cessna
172E
Fixed-wing, single engine Individual owner
Idaho
Standard 2018-11-29 ValidFAA registration status code V: Valid registration. All codes
N4260F Cessna
172
Fixed-wing, single engine Individual owner
Washington
Standard 2018-11-27 ValidFAA registration status code V: Valid registration. All codes
N7469T Cessna
172A
Fixed-wing, single engine Individual owner
Washington
Standard 2018-11-27 ValidFAA registration status code V: Valid registration. All codes
N8816U Cessna
172F
Fixed-wing, single engine Hocus Holdings LLC
Carrollton, Ohio
Standard 2018-11-26 ValidFAA registration status code V: Valid registration. All codes
N2013Y Cessna
172C
Fixed-wing, single engine Co-owned owner
Texas
Standard 2018-11-20 ValidFAA registration status code V: Valid registration. All codes
N3713R Cessna
172H
Fixed-wing, single engine Co-owned owner
Illinois
Multiple 2018-11-20 ValidFAA registration status code V: Valid registration. All codes
N6985A Cessna
172
Fixed-wing, single engine Individual owner
Ohio
Standard 2018-11-20 ValidFAA registration status code V: Valid registration. All codes
N2966D Cessna
170B
Fixed-wing, single engine Individual owner
Georgia
Standard 2018-11-19 ValidFAA registration status code V: Valid registration. All codes
N3565C Cessna
170B
Fixed-wing, single engine Individual owner
Michigan
Standard 2018-11-19 ValidFAA registration status code V: Valid registration. All codes
N5866A Cessna
172
Fixed-wing, single engine Individual owner
Indiana
Standard 2018-11-17 ValidFAA registration status code V: Valid registration. All codes
N6717A Cessna
172
Fixed-wing, single engine Individual owner
Minnesota
Standard 2018-11-17 ValidFAA registration status code V: Valid registration. All codes
N7194A Cessna
172
Fixed-wing, single engine Individual owner
Texas
Standard 2018-11-16 ValidFAA registration status code V: Valid registration. All codes
N1881Y Cessna
172C
Fixed-wing, single engine Sutton Aircraft Salvage LLC
Palmer, Alaska
Standard 2018-11-13 ValidFAA registration status code V: Valid registration. All codes
N1708F Cessna
172H
Fixed-wing, single engine Individual owner
Michigan
Standard 2018-11-07 ValidFAA registration status code V: Valid registration. All codes
N3999L Cessna
172G
Fixed-wing, single engine Individual owner
Wisconsin
Standard 2018-11-06 ValidFAA registration status code V: Valid registration. All codes
N8361U Cessna
172F
Fixed-wing, single engine Individual owner
Kentucky
Standard 2018-11-05 ValidFAA registration status code V: Valid registration. All codes
N8408U Cessna
172F
Fixed-wing, single engine Individual owner
Minnesota
Standard 2018-11-05 ValidFAA registration status code V: Valid registration. All codes
N3932L Cessna
172G
Fixed-wing, single engine Co-owned owner
Alabama
Standard 2018-11-03 ValidFAA registration status code V: Valid registration. All codes
N3967L Cessna
172G
Fixed-wing, single engine Co-owned owner
Iowa
Standard 2018-11-03 ValidFAA registration status code V: Valid registration. All codes
N520RG Cessna
172D
Fixed-wing, single engine Individual owner
Georgia
Standard 2018-11-03 ValidFAA registration status code V: Valid registration. All codes
N7505X Cessna
172B
Fixed-wing, single engine Co-owned owner
Virginia
Standard 2018-11-03 ValidFAA registration status code V: Valid registration. All codes
N3852L Cessna
172G
Fixed-wing, single engine Mountain Wings LLC
Salem, West Virginia
Standard 2018-11-02 ValidFAA registration status code V: Valid registration. All codes
N4176F Cessna
172
Fixed-wing, single engine Co-owned owner
California
Standard 2018-11-02 ValidFAA registration status code V: Valid registration. All codes
N8801U Cessna
172F
Fixed-wing, single engine Individual owner
Texas
Standard 2018-11-02 ValidFAA registration status code V: Valid registration. All codes
N3850S Cessna
172E
Fixed-wing, single engine Co-owned owner
Wyoming
Standard 2018-10-29 ValidFAA registration status code V: Valid registration. All codes
N8377H Cessna
172
Fixed-wing, single engine Individual owner
Washington
Standard 2018-10-29 ValidFAA registration status code V: Valid registration. All codes
N4222F Cessna
172
Fixed-wing, single engine Individual owner
Illinois
Standard 2018-10-26 ValidFAA registration status code V: Valid registration. All codes
N8598U Cessna
172F
Fixed-wing, single engine Individual owner
Oregon
Standard 2018-10-26 ValidFAA registration status code V: Valid registration. All codes
N7941X Cessna
172B
Fixed-wing, single engine Dixie Aerial Surveillance & Photography LLC
Heflin, Louisiana
Standard 2018-10-25 ValidFAA registration status code V: Valid registration. All codes
N9828T Cessna
172A
Fixed-wing, single engine Individual owner
California
Standard 2018-10-25 ValidFAA registration status code V: Valid registration. All codes
N1148F Cessna
172G
Fixed-wing, single engine Individual owner
Kentucky
Standard 2018-10-24 ValidFAA registration status code V: Valid registration. All codes
N3752F Cessna
172H
Fixed-wing, single engine Copper River Airmotive LLC
Copper Center, Alaska
Standard 2018-10-24 ValidFAA registration status code V: Valid registration. All codes
N8323U Cessna
172F
Fixed-wing, single engine Individual owner
Minnesota
Standard 2018-10-23 ValidFAA registration status code V: Valid registration. All codes
N9829T Cessna
172A
Fixed-wing, single engine Individual owner
Minnesota
Standard 2018-10-23 ValidFAA registration status code V: Valid registration. All codes
N2770U Cessna
172D
Fixed-wing, single engine Standard Equipment Leasing and Sales LLC
Wilmington, Delaware
Standard 2018-10-18 ValidFAA registration status code V: Valid registration. All codes
N5512R Cessna
172F
Fixed-wing, single engine Premier Aircraft Sales LLC
Fort Wayne, Indiana
Standard 2018-10-18 ValidFAA registration status code V: Valid registration. All codes
N4061F Cessna
172
Fixed-wing, single engine Huston Aviation LLC
Fort Worth, Texas
Standard 2018-10-17 ValidFAA registration status code V: Valid registration. All codes
N4495L Cessna
172G
Fixed-wing, single engine Blue Wings LLC
Brecksville, Ohio
Standard 2018-10-15 ValidFAA registration status code V: Valid registration. All codes
N3313K Globe
GC-1B
Fixed-wing, single engine Individual owner
Montana
Standard 2018-10-10 ValidFAA registration status code V: Valid registration. All codes
N6120E Cessna
172
Fixed-wing, single engine Firestone Johnnie e
Portales, New Mexico
Standard 2018-10-10 ValidFAA registration status code V: Valid registration. All codes
N2327U Cessna
172D
Fixed-wing, single engine Individual owner
Oregon
Standard 2018-10-05 ValidFAA registration status code V: Valid registration. All codes
N5629T Cessna
172E
Fixed-wing, single engine 5629T LLC
Denison, Texas
Standard 2018-10-05 ValidFAA registration status code V: Valid registration. All codes
N7468X Cessna
172B
Fixed-wing, single engine Individual owner
Texas
Standard 2018-10-01 ValidFAA registration status code V: Valid registration. All codes
N8149B Cessna
172
Fixed-wing, single engine Individual owner
Washington
Standard 2018-09-28 ValidFAA registration status code V: Valid registration. All codes
N625RD Cessna
172
Fixed-wing, single engine Loup City Airservice
Lincoln, Nebraska
Standard 2018-09-25 ValidFAA registration status code V: Valid registration. All codes
N4338L Cessna
172G
Fixed-wing, single engine Co-owned owner
Tennessee
Standard 2018-09-24 ValidFAA registration status code V: Valid registration. All codes
N7006A Cessna
172
Fixed-wing, single engine Individual owner
Mississippi
Standard 2018-09-24 ValidFAA registration status code V: Valid registration. All codes
N5331R Cessna
172F
Fixed-wing, single engine Individual owner
Maine
Standard 2018-09-20 ValidFAA registration status code V: Valid registration. All codes
N7514T Cessna
172A
Fixed-wing, single engine Individual owner
Texas
Standard 2018-09-20 ValidFAA registration status code V: Valid registration. All codes
N4282F Cessna
172
Fixed-wing, single engine Individual owner
California
Standard 2018-09-18 ValidFAA registration status code V: Valid registration. All codes
N7194T Cessna
172A
Fixed-wing, single engine Individual owner
Washington
Standard 2018-09-18 ValidFAA registration status code V: Valid registration. All codes
N7750X Cessna
172B
Fixed-wing, single engine Individual owner
Minnesota
Standard 2018-09-18 ValidFAA registration status code V: Valid registration. All codes
N3811S Cessna
172E
Fixed-wing, single engine Individual owner
Florida
Standard 2018-09-17 ValidFAA registration status code V: Valid registration. All codes
N4075F Cessna
172
Fixed-wing, single engine Individual owner
California
Standard 2018-09-17 ValidFAA registration status code V: Valid registration. All codes
N5184F Cessna
172F
Fixed-wing, single engine Individual owner
Washington
Standard 2018-09-17 ValidFAA registration status code V: Valid registration. All codes
N8173B Cessna
172
Fixed-wing, single engine Better Air Service LLC
Dailey, West Virginia
Standard 2018-09-17 ValidFAA registration status code V: Valid registration. All codes
N5166F Cessna
172F
Fixed-wing, single engine Individual owner
New York
Standard 2018-09-14 ValidFAA registration status code V: Valid registration. All codes
N6122E Cessna
172
Fixed-wing, single engine Individual owner
Washington
Standard 2018-09-14 ValidFAA registration status code V: Valid registration. All codes
N7486M Cessna
175
Fixed-wing, single engine Individual owner
Michigan
Standard 2018-09-14 ValidFAA registration status code V: Valid registration. All codes
N3950R Cessna
172A
Fixed-wing, single engine Individual owner
Alaska
Standard 2018-09-12 ValidFAA registration status code V: Valid registration. All codes
N5816A Cessna
172
Fixed-wing, single engine Individual owner
Washington
Standard 2018-09-12 ValidFAA registration status code V: Valid registration. All codes
N933P Cessna
172F
Fixed-wing, single engine Aerowood Aviation LLC
Monroe, North Carolina
Standard 2018-09-11 ValidFAA registration status code V: Valid registration. All codes
N5805A Cessna
172
Fixed-wing, single engine Victory Aero Tech INC
Camarillo, California
Standard 2018-09-08 ValidFAA registration status code V: Valid registration. All codes
N2421U Cessna
172D
Fixed-wing, single engine Individual owner
Indiana
Standard 2018-09-07 ValidFAA registration status code V: Valid registration. All codes
N2686U Cessna
172D
Fixed-wing, single engine Individual owner
New Jersey
Standard 2018-09-06 ValidFAA registration status code V: Valid registration. All codes
N6088A Cessna
172
Fixed-wing, single engine Individual owner
Texas
Standard 2018-09-06 ValidFAA registration status code V: Valid registration. All codes
N8198U Cessna
172F
Fixed-wing, single engine Individual owner
Oklahoma
Standard 2018-09-06 ValidFAA registration status code V: Valid registration. All codes
N4427L Cessna
172G
Fixed-wing, single engine Individual owner
Oklahoma
Standard 2018-09-05 ValidFAA registration status code V: Valid registration. All codes
N4626L Cessna
172G
Fixed-wing, single engine Individual owner
Tennessee
Standard 2018-09-05 ValidFAA registration status code V: Valid registration. All codes
N5521R Cessna
172F
Fixed-wing, single engine Rpm Commander Holdings INC
Deerfield Beach, Florida
Standard 2018-09-05 ValidFAA registration status code V: Valid registration. All codes
N170DP Cessna
170B
Fixed-wing, single engine Individual owner
Washington
Standard 2018-08-30 ValidFAA registration status code V: Valid registration. All codes
N3222L Cessna
172H
Fixed-wing, single engine Individual owner
Kansas
Standard 2018-08-30 ValidFAA registration status code V: Valid registration. All codes
N8350U Cessna
172F
Fixed-wing, single engine Individual owner
New York
Standard 2018-08-30 ValidFAA registration status code V: Valid registration. All codes
N8372A Cessna
172C
Fixed-wing, single engine Individual owner
Washington
Standard 2018-08-29 ValidFAA registration status code V: Valid registration. All codes
N7265T Cessna
172A
Fixed-wing, single engine Kor Aviation LLC
Piedmont, South Dakota
Standard 2018-08-28 ValidFAA registration status code V: Valid registration. All codes
N8815Z Cessna
172H
Fixed-wing, single engine Aerowood Aviation LLC
Monroe, North Carolina
Standard 2018-08-22 ValidFAA registration status code V: Valid registration. All codes
N5406R Cessna
172F
Fixed-wing, single engine Mmm Enterprises LLC
Aurora, Indiana
Standard 2018-08-21 ValidFAA registration status code V: Valid registration. All codes
N2931U Cessna
172D
Fixed-wing, single engine Co-owned owner
California
Standard 2018-08-20 ValidFAA registration status code V: Valid registration. All codes
N7063A Cessna
172
Fixed-wing, single engine Co-owned owner
Oregon
Standard 2018-08-18 ValidFAA registration status code V: Valid registration. All codes
N5515T Cessna
172E
Fixed-wing, single engine Individual owner
Florida
Standard 2018-08-17 ValidFAA registration status code V: Valid registration. All codes
N5611T Cessna
172E
Fixed-wing, single engine Individual owner
Kansas
Standard 2018-08-17 ValidFAA registration status code V: Valid registration. All codes
N8222L Cessna
172H
Fixed-wing, single engine Co-owned owner
South Carolina
Standard 2018-08-17 ValidFAA registration status code V: Valid registration. All codes
N3283L Cessna
172H
Fixed-wing, single engine Individual owner
Oklahoma
Standard 2018-08-16 ValidFAA registration status code V: Valid registration. All codes
N4315L Cessna
172G
Fixed-wing, single engine Individual owner
Alaska
Standard 2018-08-16 ValidFAA registration status code V: Valid registration. All codes
N4602T Maule
M-4
Fixed-wing, single engine Individual owner
Michigan
Standard 2018-08-16 ValidFAA registration status code V: Valid registration. All codes
N7742X Cessna
172B
Fixed-wing, single engine Individual owner
Minnesota
Standard 2018-08-16 ValidFAA registration status code V: Valid registration. All codes
N7429X Cessna
172B
Fixed-wing, single engine Individual owner
Virginia
Standard 2018-08-15 ValidFAA registration status code V: Valid registration. All codes
N8361A Cessna
170B
Fixed-wing, single engine Individual owner
Kansas
Standard 2018-08-15 ValidFAA registration status code V: Valid registration. All codes
N8763B Cessna
172
Fixed-wing, single engine Individual owner
Oregon
Standard 2018-08-15 ValidFAA registration status code V: Valid registration. All codes
N4694L Cessna
172G
Fixed-wing, single engine Sky Tours LLC
Port Clinton, Ohio
Standard 2018-08-13 ValidFAA registration status code V: Valid registration. All codes
N5FB Cessna
172H
Fixed-wing, single engine Individual owner
Colorado
Standard 2018-08-13 ValidFAA registration status code V: Valid registration. All codes
N7417T Cessna
172A
Fixed-wing, single engine Individual owner
Massachusetts
Standard 2018-08-13 ValidFAA registration status code V: Valid registration. All codes
N5942R Cessna
172G
Fixed-wing, single engine L&L LTD
Shoreview, Minnesota
Standard 2018-08-08 ValidFAA registration status code V: Valid registration. All codes
N1623F Cessna
172H
Fixed-wing, single engine Individual owner
Ohio
Standard 2018-08-07 ValidFAA registration status code V: Valid registration. All codes
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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.