Continental O-300-C
4 aircraft on the U.S. register carry a Continental O-300-C engine, rated at about 145 horsepower. The Cessna 172 Skyhawk is the model most often fitted with it (3 aircraft). The aircraft carrying it were built between 1960 and 1964.
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-C. FAA spelling: 0-300-C.
Fuel: 100LL avgas.
Fitted to model families
Model families, as a table
| aircraft | |
|---|---|
| Cessna 172 Skyhawk | 3 |
| Stewart Michael W CH-200-LS | 1 |
Cessna 172 Skyhawk · Stewart Michael W CH-200-LS
Where they are owner's state
What the FAA has certified, ordered and been told about the Continental O-300-C the component layer
The design is held under 1 type certificate (E-253, held by Continental Aerospace Technologies, INC.). The FAA has issued 8 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 40 failure reports with the FAA since 1995, 8 of them in the last ten years.
FAA orders 8 airworthiness directives · newest first
Failure reports 40 since · what operators and shops told the FAA
Failure reports by year, as a table
| reports | |
|---|---|
| 95 | 2 |
| 96 | 6 |
| 97 | 7 |
| 98 | 4 |
| 99 | 3 |
| 00 | 2 |
| 01 | 4 |
| 02 | 3 |
| 03 | 1 |
| 04 | 1 |
| 05 | 3 |
| 06 | 1 |
| 08 | 1 |
| 09 | 1 |
| 13 | 1 |
Parts most often reported as the reports name them
Parts most reported, as a table
| reports | |
|---|---|
| Block | 3 |
| Bracket | 3 |
| Piston | 3 |
| Spar | 3 |
| Carburetor | 2 |
| Seat Belt | 2 |
| Wheel | 2 |
| Control Cable | 1 |
| Crankcase | 1 |
| Crankshaft | 1 |
Latest reports
Approved replacement parts 30 parts manufacturer approvals
Parts a company other than the maker may make for this engine and sell as FAA-approved. The companies holding the most:
Most often: alternator (6), harness (5), stud (3), ring (3), pushrod tube (3), valve cover (2), engine preheat (2), rotor gear (1), magneto (1), machining (1).
Certificates and bulletins
Safety bulletins 3 · advice, not orders
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
- Cessna 172 Skyhawk 3 with this engine series
- Texas 1 of these aircraft
- Tennessee 1 of these aircraft
- Nevada 1 of these aircraft
- California 1 of these aircraft
- FAA orders naming the Continental O-300-C 8 airworthiness directives
- Failure reports on the Continental O-300-C 40 reports since 1995
The whole map of how records connect · these connections as data: /graph/engine/continental-o-300-c.json.
Aircraft newest certificates first · 4
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N901MS | Stewart Michael W CH-200-LS |
Fixed-wing, single engine | Individual owner Texas |
Experimental | 2026-11-04 | ValidFAA registration status code V: Valid registration. All codes |
| N8818T | Cessna 172E |
Fixed-wing, single engine | Individual owner California |
Standard | 2023-07-09 | ValidFAA registration status code V: Valid registration. All codes |
| N718DF | Cessna 172E |
Fixed-wing, single engine | Turning Point @ Sonrise INC Hartsville, Tennessee |
Standard | 2023-05-10 | ValidFAA registration status code V: Valid registration. All codes |
| N7821T | Cessna 172A |
Fixed-wing, single engine | Individual owner Nevada |
Standard | 2016-12-29 | ValidFAA registration status code V: Valid registration. All codes |
Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), November 10, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.