Continental IO-520-F
80 aircraft on the U.S. register carry a Continental IO-520-F engine, rated at about 300 horsepower. The Cessna 207 Skywagon 207 is the model most often fitted with it (43 aircraft). The aircraft carrying it were built between 1965 and 1984.
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 IO-520-F. FAA spelling: IO-520-F.
Fitted to model families
Cessna 207 Skywagon 20743Cessna U206 Stationair32Cessna A185 Skywagon3Cessna 206 Stationair1Cessna T2071
Cessna 207 Skywagon 207 · Cessna U206 Stationair · Cessna A185 Skywagon · Cessna 206 Stationair · Cessna T207
Where they are owner's state
Alaska42Washington10Florida5Michigan3Delaware3Texas2Pennsylvania2Idaho2Wisconsin1Oklahoma1
Kind of aircraft
Piston singles67 (84%)Turboprops13 (16%)
When the aircraft were built by decade
What the FAA has certified, ordered and been told about the Continental IO-520-F the component layer
The design is held under 1 type certificate (E5CE, held by Continental Aerospace Technologies, INC.). The FAA has issued 32 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 751 failure reports with the FAA since 1995, 36 of them in the last ten years.
FAA orders 32 airworthiness directives · newest first
2023-10-262023-17-04 · Reciprocating Engine Oil System · engine
2023-03-152023-05-16 · Reciprocating Engine Power Section · engine
2023-02-232023-04-08 · Reciprocating Engine Power Section · engine
2023-02-172023-02-12 · Engine Air Intake System · engine
2022-08-152022-16-03 · Engine (RECIPROCATING) · engine
2016-09-152016-16-12 · Cylinder assemblies · engine
Failure reports 751 since · what operators and shops told the FAA
Parts most often reported as the reports name them
Cylinder77Cylinder Head61Alternator29Crankshaft25Crankcase18Bolt17Engine17Bracket16Fitting15Magneto15
Latest reports
2026-08-24Control Cable: misinstalled
2026-05-28Wire: broken
2025-05-21Muffler: leaking
2025-01-23Bulkhead: cracked
2025-01-18Muffler: cracked
Certificates and bulletins
E5CEType certificate held by Continental Aerospace Technologies, INC. · 18 models listed · revised March 8, 2022
Safety bulletins 10 · advice, not orders
2020-04-06NE-20-05 · POWERPLANT - Engine Camshaft Gear Tooth Fracture
2018-06-20NE-18-16 · POWERPLANT Alternator Drive Coupling
2017-05-10NE-17-11 · POWERPLANT Engine damage as a result of kickback
2016-03-08NE-16-13 · Powerplant - Prohibited use of sealant
2013-02-08NE-13-15 · Engine Controls: Continental Motors, Inc. (CMI) Throttle and Mixture Control Levers
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 207 Skywagon 207 43 with this engine series
- Cessna U206 Stationair 32 with this engine series
- Cessna A185 Skywagon 3 with this engine series
- Cessna 206 Stationair 1 with this engine series
- Cessna T207 1 with this engine series
Where they are
- Alaska 42 of these aircraft
- Washington 10 of these aircraft
- Florida 5 of these aircraft
- Michigan 3 of these aircraft
- Delaware 3 of these aircraft
Biggest operators
- Ryan Air INC 8 of these aircraft
- Grant Aviation INC 7 of these aircraft
- Yr-Aircraft Leasing LLC 5 of these aircraft
- Alaska Aircraft Leasing LLC 4 of these aircraft
- Fox Aircraft LLC 2 of these aircraft
Airworthiness
- FAA orders naming the Continental IO-520-F 32 airworthiness directives
- Failure reports on the Continental IO-520-F 751 reports since 1995
Analytics
These connections as data: /graph/engine/continental-io-520-f.json · about the eFlight graph.
Aircraft newest certificates first · 80
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N8474U | Cessna U206D |
Fixed-wing, single engine | Birdwin LLC Buras, Louisiana |
Standard | 2026-07-29 | ValidFAA registration status code V: Valid registration. All codes |
| N8253Q | Cessna U206F |
Fixed-wing, single engine | Togo Aviation Services LLC Palmer, Alaska |
Standard | 2026-06-08 | ValidFAA registration status code V: Valid registration. All codes |
| N120JH | Cessna U206G |
Fixed-wing, single engine | C&C Cessna LLC Baltimore, Maryland |
Standard | 2026-05-16 | ValidFAA registration status code V: Valid registration. All codes |
| N1450M | Cessna U206E |
Fixed-wing, single engine | Crescent Solutions Group LLC Camden, Delaware |
Standard | 2026-04-24 | ValidFAA registration status code V: Valid registration. All codes |
| N207CH | Cessna 207 |
Fixed-wing, single engine | Aviation Trust CO LLC Trustee Oklahoma City, Oklahoma |
Standard | 2025-10-08 | ValidFAA registration status code V: Valid registration. All codes |
| N472NM | Cessna 207A |
Fixed-wing, single engine | Mission Aviation Fellowship Nampa, Idaho |
Standard | 2025-09-10 | ValidFAA registration status code V: Valid registration. All codes |
| N8091Z | Cessna U206A |
Fixed-wing, single engine | Individual owner Washington |
Multiple | 2025-05-22 | ValidFAA registration status code V: Valid registration. All codes |
| N206LF | Cessna U206G |
Fixed-wing, single engine | Individual owner Connecticut |
Standard | 2024-11-22 | ValidFAA registration status code V: Valid registration. All codes |
| N2902 | Cessna U206G |
Fixed-wing, single engine | N2902 LLC Miami, Florida |
Standard | 2024-11-15 | ValidFAA registration status code V: Valid registration. All codes |
| N85JX | Cessna A185F |
Fixed-wing, single engine | Kahonees Air Service LLC Bozeman, Montana |
Standard | 2024-09-25 | ValidFAA registration status code V: Valid registration. All codes |
| N257SP | Cessna 207A |
Fixed-wing, single engine | Aviatzone LLC Fort Lauderdale, Florida |
Standard | 2024-05-28 | ValidFAA registration status code V: Valid registration. All codes |
| N800DF | Cessna 207A |
Fixed-wing, single engine | Fox Aircraft LLC Bethel, Alaska |
Standard | 2024-01-07 | ValidFAA registration status code V: Valid registration. All codes |
| N8747Z | Cessna A185F |
Fixed-wing, single engine | Mermaid Marine LLC Auburn, Washington |
Standard | 2023-11-19 | ValidFAA registration status code V: Valid registration. All codes |
| N206YA | Cessna 206 |
Fixed-wing, single engine | Co-owned owner Washington |
Standard | 2023-05-12 | ValidFAA registration status code V: Valid registration. All codes |
| N1120V | Cessna U206F |
Fixed-wing, single engine | Kodiak Marine Construction Oakley, Idaho |
Standard | 2023-02-13 | ValidFAA registration status code V: Valid registration. All codes |
| N454GG | Cessna U206G |
Fixed-wing, single engine | Ak Air Leasing LLC Homer, Alaska |
Standard | 2023-01-13 | ValidFAA registration status code V: Valid registration. All codes |
| N9829M | Cessna 207A |
Fixed-wing, single engine | Ryan Air INC Anchorage, Alaska |
Standard | 2022-12-19 | ValidFAA registration status code V: Valid registration. All codes |
| N206J | Cessna U206C |
Fixed-wing, single engine | J Bear Tours LLC Homer, Alaska |
Standard | 2022-10-20 | ValidFAA registration status code V: Valid registration. All codes |
| N33216 | Cessna U206F |
Fixed-wing, single engine | Avarts LLC New Castle, Delaware |
Standard | 2022-08-18 | ValidFAA registration status code V: Valid registration. All codes |
| N746KP | Cessna 207A |
Fixed-wing, single engine | Fox Aircraft LLC Wasilla, Alaska |
Standard | 2022-06-07 | ValidFAA registration status code V: Valid registration. All codes |
| N206FL | Cessna U206G |
Fixed-wing, single engine | Standard | 2022-04-25 | ValidFAA registration status code V: Valid registration. All codes | |
| N29127 | Cessna U206C |
Fixed-wing, single engine | Individual owner Washington |
Standard | 2021-08-13 | ValidFAA registration status code V: Valid registration. All codes |
| N2591T | Cessna U206F |
Fixed-wing, single engine | Individual owner Michigan |
Standard | 2021-07-14 | ValidFAA registration status code V: Valid registration. All codes |
| N206KW | Cessna U206G |
Fixed-wing, single engine | Coyote Air LLC Fairbanks, Alaska |
Standard | 2021-06-29 | ValidFAA registration status code V: Valid registration. All codes |
| N895AH | Cessna U206G |
Fixed-wing, single engine | Aerospace Asset Holdings LLC Wilmington, Delaware |
Standard | 2021-06-02 | ValidFAA registration status code V: Valid registration. All codes |
| N206K | Cessna U206D |
Fixed-wing, single engine | Air & Opportunity Aviation LLC Austin, Texas |
Standard | 2021-04-13 | ValidFAA registration status code V: Valid registration. All codes |
| N424AD | Cessna T207 |
Fixed-wing, single engine | Sky West Aviation INC Trustee Albuquerque, New Mexico |
Standard | 2020-11-18 | ValidFAA registration status code V: Valid registration. All codes |
| N9399M | Cessna 207A |
Fixed-wing, single engine | Grant Aviation INC Anchorage, Alaska |
Standard | 2020-10-19 | ValidFAA registration status code V: Valid registration. All codes |
| N9948M | Cessna 207A |
Fixed-wing, single engine | Grant Aviation INC Anchorage, Alaska |
Standard | 2020-10-19 | ValidFAA registration status code V: Valid registration. All codes |
| N5277J | Cessna 207A |
Fixed-wing, single engine | Yr-Aircraft Leasing LLC Bethel, Alaska |
Standard | 2020-10-01 | ValidFAA registration status code V: Valid registration. All codes |
| N747SQ | Cessna 207A |
Fixed-wing, single engine | Yr-Aircraft Leasing LLC Bethel, Alaska |
Standard | 2020-10-01 | ValidFAA registration status code V: Valid registration. All codes |
| N9794M | Cessna 207A |
Fixed-wing, single engine | Yr-Aircraft Leasing LLC Bethel, Alaska |
Standard | 2020-10-01 | ValidFAA registration status code V: Valid registration. All codes |
| N9869M | Cessna 207A |
Fixed-wing, single engine | Yr-Aircraft Leasing LLC Bethel, Alaska |
Standard | 2020-10-01 | ValidFAA registration status code V: Valid registration. All codes |
| N9996M | Cessna 207A |
Fixed-wing, single engine | Yr-Aircraft Leasing LLC Bethel, Alaska |
Standard | 2020-10-01 | ValidFAA registration status code V: Valid registration. All codes |
| N207YH | Cessna 207A |
Fixed-wing, single engine | Grant Aviation INC Anchorage, Alaska |
Standard | 2020-06-04 | ValidFAA registration status code V: Valid registration. All codes |
| N5370U | Cessna U206G |
Fixed-wing, single engine | Individual owner Alaska |
Standard | 2020-03-06 | ValidFAA registration status code V: Valid registration. All codes |
| N73266 | Cessna 207A |
Fixed-wing, single engine | Macair Aviation LLC Xenia, Ohio |
Standard | 2020-01-31 | ValidFAA registration status code V: Valid registration. All codes |
| N7367C | Cessna U206G |
Fixed-wing, single engine | Individual owner Alaska |
Restricted | 2020-01-16 | ValidFAA registration status code V: Valid registration. All codes |
| N6908M | Cessna 207A |
Fixed-wing, single engine | Grant Aviation INC Anchorage, Alaska |
Standard | 2020-01-09 | ValidFAA registration status code V: Valid registration. All codes |
| N9946M | Cessna 207A |
Fixed-wing, single engine | Grant Aviation INC Anchorage, Alaska |
Restricted | 2020-01-09 | ValidFAA registration status code V: Valid registration. All codes |
| N207FD | Cessna 207A |
Fixed-wing, single engine | Elevation Squad INC York, Pennsylvania |
Standard | 2019-11-06 | ValidFAA registration status code V: Valid registration. All codes |
| N495K | Cessna U206F |
Fixed-wing, single engine | Katmai Air LLC Anchorage, Alaska |
Multiple | 2019-06-17 | ValidFAA registration status code V: Valid registration. All codes |
| N1733R | Cessna U206F |
Fixed-wing, single engine | Northstar Holdings LLC Anchorage, Alaska |
Standard | 2019-06-03 | ValidFAA registration status code V: Valid registration. All codes |
| N723F | Cessna U206G |
Fixed-wing, single engine | Clear Skies LLC Stuart, Florida |
Standard | 2019-04-04 | ValidFAA registration status code V: Valid registration. All codes |
| N613YH | Cessna 207A |
Fixed-wing, single engine | Kuspuk School District Aniak, Alaska |
Standard | 2019-04-02 | ValidFAA registration status code V: Valid registration. All codes |
| N9563G | Cessna U206F |
Fixed-wing, single engine | Litzen Guide Service Kenai, Alaska |
Standard | 2018-11-20 | ValidFAA registration status code V: Valid registration. All codes |
| N9935M | Cessna 207A |
Fixed-wing, single engine | Freshwater Adventures INC Dillingham, Alaska |
Standard | 2018-04-26 | ValidFAA registration status code V: Valid registration. All codes |
| N39AK | Cessna 207A |
Fixed-wing, single engine | Individual owner Alaska |
Standard | 2018-04-02 | ValidFAA registration status code V: Valid registration. All codes |
| N7917N | Cessna U206G |
Fixed-wing, single engine | Wrangell Mountain Air INC Palmer, Alaska |
Multiple | 2018-02-20 | ValidFAA registration status code V: Valid registration. All codes |
| N96AK | Cessna 207A |
Fixed-wing, single engine | Individual owner Alaska |
Standard | 2018-02-05 | ValidFAA registration status code V: Valid registration. All codes |
| N9180S | Cessna U206G |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2018-01-23 | ValidFAA registration status code V: Valid registration. All codes |
| N207RB | Cessna 207A |
Fixed-wing, single engine | Sutton Aircraft Salvage LLC Palmer, Alaska |
Standard | 2017-10-05 | ValidFAA registration status code V: Valid registration. All codes |
| N206VT | Cessna U206C |
Fixed-wing, single engine | Send North Anchorage, Alaska |
Standard | 2017-04-24 | ValidFAA registration status code V: Valid registration. All codes |
| N391SC | Cessna U206D |
Fixed-wing, single engine | Skydive Pennsylvania INC Mercer, Pennsylvania |
Standard | 2017-04-21 | ValidFAA registration status code V: Valid registration. All codes |
| N9349M | Cessna 207A |
Fixed-wing, single engine | Double R Air LLC Miami, Florida |
Standard | 2016-05-05 | ValidFAA registration status code V: Valid registration. All codes |
| N7269N | Cessna U206G |
Fixed-wing, single engine | Ak Air Leasing LLC Homer, Alaska |
Standard | 2016-03-21 | ValidFAA registration status code V: Valid registration. All codes |
| N9957M | Cessna 207A |
Fixed-wing, single engine | Arctic Aviation Leasing LLC Anchorage, Alaska |
Standard | 2016-02-12 | ValidFAA registration status code V: Valid registration. All codes |
| N9943M | Cessna 207A |
Fixed-wing, single engine | Bristol Bay Air Service INC Dillingham, Alaska |
Standard | 2015-11-02 | ValidFAA registration status code V: Valid registration. All codes |
| N36MS | Cessna U206F |
Fixed-wing, single engine | Flying Medical Service INC Grosse Pointe, Michigan |
Special flight permit | 2014-10-06 | ValidFAA registration status code V: Valid registration. All codes |
| N30MS | Cessna U206F |
Fixed-wing, single engine | Flying Medical Service Grosse Pointe, Michigan |
Special flight permit | 2014-07-22 | ValidFAA registration status code V: Valid registration. All codes |
| N207HA | Cessna 207A |
Fixed-wing, single engine | P & C Leasing LLC Jupiter, Florida |
Standard | 2011-06-24 | ValidFAA registration status code V: Valid registration. All codes |
| N579JD | Cessna A185F |
Fixed-wing, single engine | Individual owner Minnesota |
Standard | 2010-01-12 | ValidFAA registration status code V: Valid registration. All codes |
| N670JH | Cessna U206G |
Fixed-wing, single engine | Natural Resources Engineering CO Pa Superior, Wisconsin |
Standard | 2009-03-19 | ValidFAA registration status code V: Valid registration. All codes |
| N624ER | Cessna 207A |
Fixed-wing, single engine | Ryan Air INC Anchorage, Alaska |
Standard | 2008-09-18 | ValidFAA registration status code V: Valid registration. All codes |
| N334W | Cessna U206F |
Fixed-wing, single engine | Centurion Investments INC DBA Chesterfield, Missouri |
Standard | 2007-08-28 | ValidFAA registration status code V: Valid registration. All codes |
| N73663 | Cessna 207A |
Fixed-wing, single engine | Summit Lake Aviation INC Olympia, Washington |
Standard | 2004-11-08 | ValidFAA registration status code V: Valid registration. All codes |
| N9953M | Cessna 207A |
Fixed-wing, single engine | Alaska Aircraft Leasing LLC Silverdale, Washington |
Standard | 2004-08-19 | ValidFAA registration status code V: Valid registration. All codes |
| N9933M | Cessna 207A |
Fixed-wing, single engine | Alaska Aircraft Leasing LLC Silverdale, Washington |
Standard | 2002-09-09 | ValidFAA registration status code V: Valid registration. All codes |
| N9941M | Cessna 207A |
Fixed-wing, single engine | Alaska Aircraft Leasing LLC Silverdale, Washington |
Standard | 2002-08-23 | ValidFAA registration status code V: Valid registration. All codes |
| N9942M | Cessna 207A |
Fixed-wing, single engine | Alaska Aircraft Leasing LLC Silverdale, Washington |
Standard | 2000-05-18 | ValidFAA registration status code V: Valid registration. All codes |
| N73733 | Cessna 207A |
Fixed-wing, single engine | Individual owner Washington |
Standard | 2000-03-07 | ValidFAA registration status code V: Valid registration. All codes |
| N9651M | Cessna 207A |
Fixed-wing, single engine | Grant Aviation INC Anchorage, Alaska |
Standard | 1999-08-19 | ValidFAA registration status code V: Valid registration. All codes |
| N9728M | Cessna 207A |
Fixed-wing, single engine | Grant Aviation INC Anchorage, Alaska |
Standard | 1997-08-09 | ValidFAA registration status code V: Valid registration. All codes |
| N26TA | Cessna 207A |
Fixed-wing, single engine | Ryan Air INC Anchorage, Alaska |
Standard | 1991-03-08 | ValidFAA registration status code V: Valid registration. All codes |
| N9475M | Cessna 207A |
Fixed-wing, single engine | Ryan Air INC Anchorage, Alaska |
Standard | 1985-09-27 | ValidFAA registration status code V: Valid registration. All codes |
| N9956M | Cessna 207A |
Fixed-wing, single engine | Ryan Air INC Anchorage, Alaska |
Standard | 1985-09-27 | ValidFAA registration status code V: Valid registration. All codes |
| N9736M | Cessna 207A |
Fixed-wing, single engine | Ryan Air INC Anchorage, Alaska |
Standard | 1984-11-09 | ValidFAA registration status code V: Valid registration. All codes |
| N73503 | Cessna 207A |
Fixed-wing, single engine | Ryan Air INC Anchorage, Alaska |
Standard | 1984-09-28 | ValidFAA registration status code V: Valid registration. All codes |
| N9720M | Cessna 207A |
Fixed-wing, single engine | Iliamna Air Taxi INC Iliamna, Alaska |
Standard | 1983-05-04 | ValidFAA registration status code V: Valid registration. All codes |
| N73217 | Cessna 207A |
Fixed-wing, single engine | Ryan Air INC Anchorage, Alaska |
Standard | 1981-10-14 | 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), October 5, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.