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
N7452A Cessna
172
Fixed-wing, single engine Co-owned owner
Washington
Standard 2024-06-15 ValidFAA registration status code V: Valid registration. All codes
N7472A Cessna
172
Fixed-wing, single engine Individual owner
Oklahoma
Standard 2024-06-15 ValidFAA registration status code V: Valid registration. All codes
N3724F Cessna
172H
Fixed-wing, single engine Co-owned owner
Montana
Standard 2024-06-14 ValidFAA registration status code V: Valid registration. All codes
N3804L Cessna
172G
Fixed-wing, single engine Aeroelite Solutions LLC
Kalispell, Montana
Standard 2024-06-14 ValidFAA registration status code V: Valid registration. All codes
N3976V Cessna
170
Fixed-wing, single engine Individual owner
Florida
Standard 2024-06-13 ValidFAA registration status code V: Valid registration. All codes
N2790L Cessna
172H
Fixed-wing, single engine Wells Mark L
Eads, Tennessee
Standard 2024-06-11 ValidFAA registration status code V: Valid registration. All codes
N5445R Cessna
172F
Fixed-wing, single engine Co-owned owner
Georgia
Standard 2024-06-11 ValidFAA registration status code V: Valid registration. All codes
N6441B Cessna
172
Fixed-wing, single engine Sanpete Air LLC
Spring City, Utah
Standard 2024-06-08 ValidFAA registration status code V: Valid registration. All codes
N1676Y Cessna
172C
Fixed-wing, single engine Individual owner
Texas
Standard 2024-06-07 ValidFAA registration status code V: Valid registration. All codes
N5043A Cessna
172
Fixed-wing, single engine Individual owner
Alaska
Standard 2024-06-07 ValidFAA registration status code V: Valid registration. All codes
N3770L Cessna
172G
Fixed-wing, single engine J&C Aviation LLC
South Boston, Virginia
None on file 2024-06-06 ValidFAA registration status code V: Valid registration. All codes
N8362X Cessna
172C
Fixed-wing, single engine Individual owner
Mississippi
Standard 2024-06-06 ValidFAA registration status code V: Valid registration. All codes
N3568C Cessna
170B
Fixed-wing, single engine Individual owner
New York
Standard 2024-06-05 ValidFAA registration status code V: Valid registration. All codes
N5627R Cessna
172F
Fixed-wing, single engine Bitikofer Brent e
Kansas City, Kansas
Standard 2024-06-05 ValidFAA registration status code V: Valid registration. All codes
N672CC Cessna
172C
Fixed-wing, single engine Dmac Aircraft LLC
Savannah, Georgia
Standard 2024-06-05 ValidFAA registration status code V: Valid registration. All codes
N8710U Cessna
172F
Fixed-wing, single engine Dmac Aircraft LLC
Savannah, Georgia
Standard 2024-06-05 ValidFAA registration status code V: Valid registration. All codes
N8808U Cessna
172F
Fixed-wing, single engine Valiair Limited Company Trustee
Casper, Wyoming
Standard 2024-06-05 ValidFAA registration status code V: Valid registration. All codes
N172R Cessna
172A
Fixed-wing, single engine Individual owner
New York
Standard 2024-06-04 ValidFAA registration status code V: Valid registration. All codes
N1761F Cessna
172H
Fixed-wing, single engine Individual owner
Wisconsin
Standard 2024-06-03 ValidFAA registration status code V: Valid registration. All codes
N3542S Cessna
172E
Fixed-wing, single engine Individual owner
California
Standard 2024-06-03 ValidFAA registration status code V: Valid registration. All codes
N6034A Cessna
172
Fixed-wing, single engine Texas P M R INC
Converse, Texas
Standard 2024-06-01 ValidFAA registration status code V: Valid registration. All codes
N7211T Cessna
172
Fixed-wing, single engine Individual owner
Texas
Standard 2024-06-01 ValidFAA registration status code V: Valid registration. All codes
N8957B Cessna
172
Fixed-wing, single engine Individual owner
New Mexico
Standard 2024-06-01 ValidFAA registration status code V: Valid registration. All codes
N6472E Cessna
172
Fixed-wing, single engine Co-owned owner
Oregon
Standard 2024-05-31 ValidFAA registration status code V: Valid registration. All codes
N6872A Cessna
172
Fixed-wing, single engine Individual owner
California
Standard 2024-05-31 ValidFAA registration status code V: Valid registration. All codes
N9786T Cessna
172
Fixed-wing, single engine Hire Smart Folks LLC
Austell, Georgia
Standard 2024-05-31 ValidFAA registration status code V: Valid registration. All codes
N1656F Cessna
172H
Fixed-wing, single engine Paragon Aviation LLC
Reading, Pennsylvania
Standard 2024-05-30 ValidFAA registration status code V: Valid registration. All codes
N2534Y Cessna
172D
Fixed-wing, single engine Individual owner
Puerto Rico
Standard 2024-05-30 ValidFAA registration status code V: Valid registration. All codes
N3935S Cessna
172E
Fixed-wing, single engine Fallbrook Flight Academy LLC
Fallbrook, California
Standard 2024-05-30 ValidFAA registration status code V: Valid registration. All codes
N8247L Cessna
172H
Fixed-wing, single engine Individual owner
Indiana
Standard 2024-05-30 ValidFAA registration status code V: Valid registration. All codes
N3526S Cessna
172E
Fixed-wing, single engine Individual owner
Illinois
Standard 2024-05-28 ValidFAA registration status code V: Valid registration. All codes
N4499L Cessna
172G
Fixed-wing, single engine Kilo Charlie LLC
Lenexa, Kansas
Standard 2024-05-28 ValidFAA registration status code V: Valid registration. All codes
N2158Y Cessna
172D
Fixed-wing, single engine N2158Y LLC
Pottsboro, Texas
Standard 2024-05-27 ValidFAA registration status code V: Valid registration. All codes
N8280B Cessna
172
Fixed-wing, single engine Sea Coast Aviation LLC
Conway, South Carolina
Standard 2024-05-27 ValidFAA registration status code V: Valid registration. All codes
N1536Y Cessna
172C
Fixed-wing, single engine Ck Aviation LLC
Williamstown, New Jersey
Standard 2024-05-26 ValidFAA registration status code V: Valid registration. All codes
N3901R Cessna
172H
Fixed-wing, single engine Individual owner
Kentucky
Standard 2024-05-26 ValidFAA registration status code V: Valid registration. All codes
N5460R Cessna
172F
Fixed-wing, single engine Take Angels Aviation LLC
Watertown, New York
Standard 2024-05-26 ValidFAA registration status code V: Valid registration. All codes
N5727R Cessna
172G
Fixed-wing, single engine Individual owner
Florida
Standard 2024-05-26 ValidFAA registration status code V: Valid registration. All codes
N7466T Cessna
172A
Fixed-wing, single engine Aiken Auusta Aviation LLC
Aiken, South Carolina
Standard 2024-05-26 ValidFAA registration status code V: Valid registration. All codes
N1841Y Cessna
172C
Fixed-wing, single engine Individual owner
Washington
Standard 2024-05-25 ValidFAA registration status code V: Valid registration. All codes
N6831A Cessna
172
Fixed-wing, single engine Individual owner
Washington
Standard 2024-05-25 ValidFAA registration status code V: Valid registration. All codes
N8377B Cessna
172
Fixed-wing, single engine Little Eagle Valley LLC
Dover, Delaware
Standard 2024-05-25 ValidFAA registration status code V: Valid registration. All codes
N8219X Cessna
172B
Fixed-wing, single engine Individual owner
Oklahoma
Standard 2024-05-23 ValidFAA registration status code V: Valid registration. All codes
N175DH Cessna
175
Fixed-wing, single engine Co-owned owner
Texas
Standard 2024-05-22 ValidFAA registration status code V: Valid registration. All codes
N5080A Cessna
172
Fixed-wing, single engine Co-owned owner
Montana
Standard 2024-05-22 ValidFAA registration status code V: Valid registration. All codes
N6313E Cessna
172
Fixed-wing, single engine Individual owner
Washington
Standard 2024-05-22 ValidFAA registration status code V: Valid registration. All codes
N5930R Cessna
172G
Fixed-wing, single engine Downwind CORP
Brush Prairie, Washington
Standard 2024-05-21 ValidFAA registration status code V: Valid registration. All codes
N8233L Cessna
172H
Fixed-wing, single engine Individual owner
Illinois
Standard 2024-05-21 ValidFAA registration status code V: Valid registration. All codes
N8524U Cessna
172F
Fixed-wing, single engine Individual owner
Alaska
Standard 2024-05-20 ValidFAA registration status code V: Valid registration. All codes
N4231F Cessna
172
Fixed-wing, single engine Co-owned owner
Alaska
Standard 2024-05-18 ValidFAA registration status code V: Valid registration. All codes
N1160F Cessna
172G
Fixed-wing, single engine Ocala Aviation Services INC
Ocala, Florida
Standard 2024-05-16 ValidFAA registration status code V: Valid registration. All codes
N6604A Cessna
172
Fixed-wing, single engine Flight Club LLC
Dover, Delaware
Standard 2024-05-16 ValidFAA registration status code V: Valid registration. All codes
N1860Y Cessna
172C
Fixed-wing, single engine Peterson Jerad
Oshkosh, Nebraska
Standard 2024-05-15 ValidFAA registration status code V: Valid registration. All codes
N2160Y Cessna
172D
Fixed-wing, single engine Ocala Aviation Services INC
Ocala, Florida
Standard 2024-05-15 ValidFAA registration status code V: Valid registration. All codes
N3966S Cessna
172E
Fixed-wing, single engine Individual owner
Texas
Standard 2024-05-15 ValidFAA registration status code V: Valid registration. All codes
N5422T Cessna
172E
Fixed-wing, single engine Individual owner
California
Standard 2024-05-15 ValidFAA registration status code V: Valid registration. All codes
N1626Y Cessna
172C
Fixed-wing, single engine Individual owner
Maine
Standard 2024-05-11 ValidFAA registration status code V: Valid registration. All codes
N7828X Cessna
172B
Fixed-wing, single engine Aero Smart LLC
Preston, Idaho
Standard 2024-05-11 ValidFAA registration status code V: Valid registration. All codes
N2086Y Cessna
172
Fixed-wing, single engine Co-owned owner
Missouri
Standard 2024-05-09 ValidFAA registration status code V: Valid registration. All codes
N4045F Cessna
172
Fixed-wing, single engine Individual owner
Michigan
Standard 2024-05-08 ValidFAA registration status code V: Valid registration. All codes
N4166L Cessna
172G
Fixed-wing, single engine Warbelows Air Ventures
Fairbanks, Alaska
Standard 2024-05-08 ValidFAA registration status code V: Valid registration. All codes
N5474T Cessna
172E
Fixed-wing, single engine Co-owned owner
Delaware
Standard 2024-05-08 ValidFAA registration status code V: Valid registration. All codes
N7377A Cessna
172
Fixed-wing, single engine Rfk Aerospace LLC
Clayton, North Carolina
Standard 2024-05-08 ValidFAA registration status code V: Valid registration. All codes
N7908U Cessna
172F
Fixed-wing, single engine Individual owner
Ohio
Standard 2024-05-08 ValidFAA registration status code V: Valid registration. All codes
N8481X Cessna
172C
Fixed-wing, single engine N8481X LLC
Canyon, Texas
Standard 2024-05-08 ValidFAA registration status code V: Valid registration. All codes
N9830T Cessna
172A
Fixed-wing, single engine Individual owner
Missouri
Standard 2024-05-08 ValidFAA registration status code V: Valid registration. All codes
N3860L Cessna
172G
Fixed-wing, single engine Lake Area Technical College
Watertown, South Dakota
Standard 2024-05-07 ValidFAA registration status code V: Valid registration. All codes
N7513X Cessna
172B
Fixed-wing, single engine N7513X LLC
Cottonwood, California
Standard 2024-05-06 ValidFAA registration status code V: Valid registration. All codes
N8262L Cessna
172H
Fixed-wing, single engine Co-owned owner
Texas
Standard 2024-05-06 ValidFAA registration status code V: Valid registration. All codes
N2133Y Cessna
172D
Fixed-wing, single engine Individual owner
Indiana
Standard 2024-05-04 ValidFAA registration status code V: Valid registration. All codes
N7481T Cessna
172A
Fixed-wing, single engine Co-owned owner
Washington
Standard 2024-05-04 ValidFAA registration status code V: Valid registration. All codes
N673X Cessna
172B
Fixed-wing, single engine Busy Bee Ventures INC
Cherokee, North Carolina
Standard 2024-05-03 ValidFAA registration status code V: Valid registration. All codes
N7803U Cessna
172E
Fixed-wing, single engine Individual owner
Arizona
Standard 2024-05-03 ValidFAA registration status code V: Valid registration. All codes
N4340B Cessna
170B
Fixed-wing, single engine Individual owner
New York
Standard 2024-05-02 ValidFAA registration status code V: Valid registration. All codes
N1439Y Cessna
172C
Fixed-wing, single engine Grace Aviation LLC
Fort Myers, Florida
Standard 2024-05-01 ValidFAA registration status code V: Valid registration. All codes
N3229L Cessna
172H
Fixed-wing, single engine Individual owner
Washington
Standard 2024-05-01 ValidFAA registration status code V: Valid registration. All codes
N3768R Cessna
172H
Fixed-wing, single engine Co-owned owner
Missouri
Standard 2024-05-01 ValidFAA registration status code V: Valid registration. All codes
N4156F Cessna
172
Fixed-wing, single engine Co-owned owner
Washington
Standard 2024-05-01 ValidFAA registration status code V: Valid registration. All codes
N7885U Cessna
172F
Fixed-wing, single engine Individual owner
Nebraska
Standard 2024-05-01 ValidFAA registration status code V: Valid registration. All codes
N1650Y Cessna
172C
Fixed-wing, single engine Airria Holdings LLC
Berlin,
Standard 2024-04-30 ValidFAA registration status code V: Valid registration. All codes
N5630A Cessna
172
Fixed-wing, single engine Individual owner
Illinois
Standard 2024-04-30 ValidFAA registration status code V: Valid registration. All codes
N5420R Cessna
172F
Fixed-wing, single engine Individual owner
Florida
Standard 2024-04-29 ValidFAA registration status code V: Valid registration. All codes
N2196Y Cessna
172D
Fixed-wing, single engine Koelbl Aviation LLC
Whitesboro, Texas
Standard 2024-04-28 ValidFAA registration status code V: Valid registration. All codes
N2495U Cessna
172D
Fixed-wing, single engine Koelbl Aviation LLC
Whitesboro, Texas
Standard 2024-04-28 ValidFAA registration status code V: Valid registration. All codes
N3748F Cessna
172H
Fixed-wing, single engine Individual owner
Minnesota
Standard 2024-04-27 ValidFAA registration status code V: Valid registration. All codes
N8161L Cessna
172H
Fixed-wing, single engine Nexten Flight Academy
Riverside, California
Standard 2024-04-27 ValidFAA registration status code V: Valid registration. All codes
N8283L Cessna
172H
Fixed-wing, single engine Individual owner
Connecticut
Standard 2024-04-27 ValidFAA registration status code V: Valid registration. All codes
N1619F Cessna
172H
Fixed-wing, single engine Individual owner
North Dakota
Standard 2024-04-26 ValidFAA registration status code V: Valid registration. All codes
N447A Werhan-Wilson
WITTMAN TAILWIND
Fixed-wing, single engine Individual owner
Colorado
Experimental 2024-04-26 ValidFAA registration status code V: Valid registration. All codes
N7920B Cessna
172
Fixed-wing, single engine Individual owner
Oregon
Standard 2024-04-25 ValidFAA registration status code V: Valid registration. All codes
N8661B Cessna
172
Fixed-wing, single engine Individual owner
Illinois
Standard 2024-04-25 ValidFAA registration status code V: Valid registration. All codes
N3965F Cessna
172
Fixed-wing, single engine Overton Asset Group LLC
St Marys, Iowa
Standard 2024-04-24 ValidFAA registration status code V: Valid registration. All codes
N3731L Cessna
172G
Fixed-wing, single engine Co-owned owner
Missouri
Standard 2024-04-23 ValidFAA registration status code V: Valid registration. All codes
N6718A Cessna
172
Fixed-wing, single engine Individual owner
Arizona
Standard 2024-04-22 ValidFAA registration status code V: Valid registration. All codes
N4243F Cessna
172
Fixed-wing, single engine Eagle Glen Veterinary Services INC
Corona, California
Standard 2024-04-21 ValidFAA registration status code V: Valid registration. All codes
N8732U Cessna
172F
Fixed-wing, single engine Individual owner
Oklahoma
Standard 2024-04-21 ValidFAA registration status code V: Valid registration. All codes
N9862T Cessna
172A
Fixed-wing, single engine Individual owner
Utah
Standard 2024-04-21 ValidFAA registration status code V: Valid registration. All codes
N4148F Cessna
172
Fixed-wing, single engine Individual owner
Kentucky
Standard 2024-04-19 ValidFAA registration status code V: Valid registration. All codes
N4295L Cessna
172G
Fixed-wing, single engine Bravo Aviation LLC
Rexburg, Idaho
Standard 2024-04-19 ValidFAA registration status code V: Valid registration. All codes
N7229T Cessna
172A
Fixed-wing, single engine Co-owned owner
Oklahoma
Standard 2024-04-18 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.