Continental IO-520 series
9,484 aircraft on the U.S. register carry a Continental IO-520 series engine, rated at about 285 horsepower. The Beechcraft V35 Bonanza is the model most often fitted with it (1,496 aircraft). The aircraft carrying it were built between 1963 and 2017.
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 series. FAA spelling: IO 520 SERIES.
Fitted to model families
Beechcraft V35 Bonanza1,496Beechcraft A36 Bonanza1,145Cessna A185 Skywagon1,143Beechcraft F33 Bonanza872Cessna 210 Centurion767Cessna U206 Stationair641Beechcraft 58 Baron466Bellanca 17 Viking456Beechcraft S35 Bonanza439Cessna 310303Cessna A188230Beechcraft E-55193
Beechcraft V35 Bonanza · Beechcraft A36 Bonanza · Cessna A185 Skywagon · Beechcraft F33 Bonanza · Cessna 210 Centurion · Cessna U206 Stationair · Beechcraft 58 Baron · Bellanca 17 Viking · Beechcraft S35 Bonanza · Cessna 310
Where they are owner's state
Texas1,047California791Alaska673Florida567Delaware326Arizona312Montana276Washington274Colorado265Georgia251
Kind of aircraft
Piston singles7,845 (83%)Piston twins1,371 (14%)Turboprops268 (3%)
When the aircraft were built by decade
What the FAA has certified, ordered and been told about the Continental IO-520 series the component layer
The design is held under 1 type certificate (E5CE, held by Continental Aerospace Technologies, INC.). The FAA has issued 30 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 465 failure reports with the FAA since 1995, 26 of them in the last ten years.
FAA orders 30 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
2022-03-292022-04-04 · Reciprocating Engine Oil System · engine
Failure reports 465 since · what operators and shops told the FAA
Parts most often reported as the reports name them
Cylinder26Cylinder Head25Relay20Hub14Circuit Breaker13Antenna12Line12Bolt10Bracket9Control Cable9
Latest reports
2024-04-06Engine: power loss
2024-04-06Engine: power loss
2022-01-21None: none
2020-07-10Rod: broken
2020-01-15Turnbuckle: corroded
Certificates and bulletins
E5CEType certificate held by Continental Aerospace Technologies, INC. · 18 models listed · revised March 8, 2022
Safety bulletins 11 · 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
- Beechcraft V35 Bonanza 1,496 with this engine series
- Beechcraft A36 Bonanza 1,145 with this engine series
- Cessna A185 Skywagon 1,143 with this engine series
- Beechcraft F33 Bonanza 872 with this engine series
- Cessna 210 Centurion 767 with this engine series
- Cessna U206 Stationair 641 with this engine series
- Beechcraft 58 Baron 466 with this engine series
- Bellanca 17 Viking 456 with this engine series
Where they are
- Texas 1,047 of these aircraft
- California 791 of these aircraft
- Alaska 673 of these aircraft
- Florida 567 of these aircraft
- Delaware 326 of these aircraft
Biggest operators
- Bas Part Sales LLC 27 of these aircraft
- International Air Services INC Trustee 12 of these aircraft
- Gta Air INC 12 of these aircraft
- Southern Aircraft Consultancy INC Trustee 11 of these aircraft
- United States Department Of Interior 10 of these aircraft
Airworthiness
- FAA orders naming the Continental IO-520 series 30 airworthiness directives
- Failure reports on the Continental IO-520 series 465 reports since 1995
Analytics
These connections as data: /graph/engine/continental-io-520-series.json · about the eFlight graph.
Aircraft newest certificates first · 9,484
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N8325N | Beech V35A |
Fixed-wing, single engine | Co-owned owner Wyoming |
Standard | 2024-07-06 | ValidFAA registration status code V: Valid registration. All codes |
| N8658Q | Beech S35 |
Fixed-wing, single engine | Individual owner Oklahoma |
Standard | 2024-07-06 | ValidFAA registration status code V: Valid registration. All codes |
| N8138Q | Cessna A185F |
Fixed-wing, single engine | Individual owner Alaska |
Restricted | 2024-07-05 | ValidFAA registration status code V: Valid registration. All codes |
| N9249R | Cessna A188B |
Fixed-wing, single engine | Great Plains Applications LLC Slayton, Minnesota |
Standard | 2024-07-04 | ValidFAA registration status code V: Valid registration. All codes |
| N798RD | Beech V35 |
Fixed-wing, single engine | Individual owner Florida |
Standard | 2024-07-03 | ValidFAA registration status code V: Valid registration. All codes |
| N2875W | Beech V35B |
Fixed-wing, single engine | Treadway AG Delaware LLC Lewes, Delaware |
Standard | 2024-07-02 | ValidFAA registration status code V: Valid registration. All codes |
| N4989M | Beech V35B |
Fixed-wing, single engine | Individual owner California |
Standard | 2024-07-02 | ValidFAA registration status code V: Valid registration. All codes |
| N93769 | Cessna A185F |
Fixed-wing, single engine | Sourdough Air Service INC Fairbanks, Alaska |
Restricted | 2024-07-02 | ValidFAA registration status code V: Valid registration. All codes |
| N4941A | Cessna 310R |
Fixed-wing, multi-engine | Individual owner Tennessee |
Standard | 2024-07-01 | ValidFAA registration status code V: Valid registration. All codes |
| N6542N | Cessna 210N |
Fixed-wing, single engine | Individual owner New Hampshire |
Standard | 2024-06-30 | ValidFAA registration status code V: Valid registration. All codes |
| N206JD | Cessna P206D |
Fixed-wing, single engine | Zulu Flight LLC Washougal, Washington |
Standard | 2024-06-29 | ValidFAA registration status code V: Valid registration. All codes |
| N8192R | Beech A36 |
Fixed-wing, single engine | Starr Aviation LLC Birmingham, Alabama |
Standard | 2024-06-28 | ValidFAA registration status code V: Valid registration. All codes |
| N155LC | Beech D55 |
Fixed-wing, multi-engine | Ale & Quail Club LLC Cheyenne, Wyoming |
Standard | 2024-06-26 | ValidFAA registration status code V: Valid registration. All codes |
| N2080L | Beech V35B |
Fixed-wing, single engine | Individual owner New York |
Standard | 2024-06-26 | ValidFAA registration status code V: Valid registration. All codes |
| N2528X | Cessna P206 |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2024-06-25 | ValidFAA registration status code V: Valid registration. All codes |
| N3765Q | Beech 35-C33A |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2024-06-25 | ValidFAA registration status code V: Valid registration. All codes |
| N5629S | Beech 35-C33A |
Fixed-wing, single engine | Individual owner California |
Standard | 2024-06-25 | ValidFAA registration status code V: Valid registration. All codes |
| N42800 | Beech V35B |
Fixed-wing, single engine | Co-owned owner California |
Standard | 2024-06-24 | ValidFAA registration status code V: Valid registration. All codes |
| N8091T | Beech F33A |
Fixed-wing, single engine | Individual owner California |
Standard | 2024-06-24 | ValidFAA registration status code V: Valid registration. All codes |
| N310CF | Cessna 310R |
Fixed-wing, multi-engine | Southern Illinois University DBA Murphysboro, Illinois |
Standard | 2024-06-22 | ValidFAA registration status code V: Valid registration. All codes |
| N8310Q | Cessna A185F |
Fixed-wing, single engine | Raven Girl LLC Eagle River, Alaska |
Restricted | 2024-06-21 | ValidFAA registration status code V: Valid registration. All codes |
| N185EC | Cessna A185F |
Fixed-wing, single engine | Individual owner Virginia |
Standard | 2024-06-20 | ValidFAA registration status code V: Valid registration. All codes |
| N414HT | Cessna 414 |
Fixed-wing, multi-engine | Patriot Environmental LLC Meeker, Oklahoma |
Standard | 2024-06-20 | ValidFAA registration status code V: Valid registration. All codes |
| N9807V | Cessna A188 |
Fixed-wing, single engine | Lazy T Aviation LLC Ashland, Nebraska |
Multiple | 2024-06-20 | ValidFAA registration status code V: Valid registration. All codes |
| N2908T | Aero Commander 200D |
Fixed-wing, single engine | Withheld at owner's request | Standard | 2024-06-18 | ValidFAA registration status code V: Valid registration. All codes |
| N300TH | Beech 58 |
Fixed-wing, multi-engine | Pacific Flight Academy LLC Honolulu, Hawaii |
Standard | 2024-06-18 | ValidFAA registration status code V: Valid registration. All codes |
| N357LC | Cessna A185F |
Fixed-wing, single engine | Skywagon Ventures LLC Anchorage, Alaska |
Standard | 2024-06-18 | ValidFAA registration status code V: Valid registration. All codes |
| N7900S | Beech S35 |
Fixed-wing, single engine | Panther City Air LLC Fort Worth, Texas |
Standard | 2024-06-18 | ValidFAA registration status code V: Valid registration. All codes |
| N3023W | Beech V35B |
Fixed-wing, single engine | Co-owned owner Washington |
Standard | 2024-06-17 | ValidFAA registration status code V: Valid registration. All codes |
| N4460S | Beech A36 |
Fixed-wing, single engine | 300 Dollar Burger LLC Elmhurst, Illinois |
Standard | 2024-06-17 | ValidFAA registration status code V: Valid registration. All codes |
| N655DD | Beech F33A |
Fixed-wing, single engine | Individual owner Washington |
Standard | 2024-06-15 | ValidFAA registration status code V: Valid registration. All codes |
| N68RT | Beech F33A |
Fixed-wing, single engine | Individual owner Kentucky |
Standard | 2024-06-15 | ValidFAA registration status code V: Valid registration. All codes |
| N753B | Beech 35-C33A |
Fixed-wing, single engine | Individual owner New Jersey |
Standard | 2024-06-15 | ValidFAA registration status code V: Valid registration. All codes |
| N9960N | Cessna A185F |
Fixed-wing, single engine | Individual owner California |
Standard | 2024-06-15 | ValidFAA registration status code V: Valid registration. All codes |
| N116AB | Beech E-55 |
Fixed-wing, multi-engine | Individual owner Arizona |
Standard | 2024-06-14 | ValidFAA registration status code V: Valid registration. All codes |
| N3053W | Beech F33A |
Fixed-wing, single engine | Victor Echo LLC Knoxville, Tennessee |
Standard | 2024-06-13 | ValidFAA registration status code V: Valid registration. All codes |
| N9925T | Beech 95-C55 |
Fixed-wing, multi-engine | Fly Bravo LLC Jasper, Texas |
Standard | 2024-06-13 | ValidFAA registration status code V: Valid registration. All codes |
| N6195F | Cessna 210J |
Fixed-wing, single engine | Withheld at owner's request | Standard | 2024-06-11 | ValidFAA registration status code V: Valid registration. All codes |
| N71VK | Beech 95-C55 |
Fixed-wing, multi-engine | V1 Real Estate LLC Pittsburg, Texas |
Standard | 2024-06-11 | ValidFAA registration status code V: Valid registration. All codes |
| N7283R | Beech A36 |
Fixed-wing, single engine | Ultra Motorsports II Boerne, Texas |
Standard | 2024-06-11 | ValidFAA registration status code V: Valid registration. All codes |
| N1833D | Beech F33A |
Fixed-wing, single engine | Co-owned owner Montana |
Standard | 2024-06-10 | ValidFAA registration status code V: Valid registration. All codes |
| N611VS | Beech E33A |
Fixed-wing, single engine | Individual owner North Carolina |
Standard | 2024-06-10 | ValidFAA registration status code V: Valid registration. All codes |
| N40KT | Beech V35A |
Fixed-wing, single engine | Individual owner North Carolina |
Standard | 2024-06-09 | ValidFAA registration status code V: Valid registration. All codes |
| N4685M | Beech V35B |
Fixed-wing, single engine | Cbh LLC Madison, Connecticut |
Standard | 2024-06-07 | ValidFAA registration status code V: Valid registration. All codes |
| N4956M | Beech F33A |
Fixed-wing, single engine | Individual owner Florida |
Standard | 2024-06-07 | ValidFAA registration status code V: Valid registration. All codes |
| N1849W | Beech A36 |
Fixed-wing, single engine | Carrow LLC Meredith, New Hampshire |
Standard | 2024-06-06 | ValidFAA registration status code V: Valid registration. All codes |
| N2117L | Beech V35B |
Fixed-wing, single engine | Cottage Grove LLC Oklahoma City, Oklahoma |
Standard | 2024-06-05 | ValidFAA registration status code V: Valid registration. All codes |
| N2151S | Cessna 210L |
Fixed-wing, single engine | Sd Aviation LLC Syracuse, Kansas |
Standard | 2024-06-05 | ValidFAA registration status code V: Valid registration. All codes |
| N29181 | Cessna U206C |
Fixed-wing, single engine | Wings of Faith Stevensville, Montana |
Standard | 2024-06-05 | ValidFAA registration status code V: Valid registration. All codes |
| N800FS | Cessna 401A |
Fixed-wing, multi-engine | Norads Aerial Services LLC Leesburg, Virginia |
Standard | 2024-06-05 | ValidFAA registration status code V: Valid registration. All codes |
| N36HB | Beech A36 |
Fixed-wing, single engine | N36Hb Healthcare LLC Austin, Texas |
Standard | 2024-06-04 | ValidFAA registration status code V: Valid registration. All codes |
| N185CV | Cessna A185F |
Fixed-wing, single engine | 185 LLC Anchorage, Alaska |
Standard | 2024-06-03 | ValidFAA registration status code V: Valid registration. All codes |
| N4703V | Bellanca 17-30 |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2024-06-01 | ValidFAA registration status code V: Valid registration. All codes |
| N6287X | Aero Commander 500-A |
Fixed-wing, multi-engine | Individual owner Tennessee |
Standard | 2024-06-01 | ValidFAA registration status code V: Valid registration. All codes |
| N21832 | Cessna A185F |
Fixed-wing, single engine | Co-owned owner Alaska |
Multiple | 2024-05-31 | ValidFAA registration status code V: Valid registration. All codes |
| N262DQ | Cessna U206G |
Fixed-wing, single engine | Individual owner Alaska |
Standard | 2024-05-31 | ValidFAA registration status code V: Valid registration. All codes |
| N4565S | Beech A36 |
Fixed-wing, single engine | Gl Aviation LLC Mcmurray, Pennsylvania |
Standard | 2024-05-31 | ValidFAA registration status code V: Valid registration. All codes |
| N461A | Beech V35 |
Fixed-wing, single engine | Individual owner South Carolina |
Standard | 2024-05-31 | ValidFAA registration status code V: Valid registration. All codes |
| N200D | Aero Commander 200D |
Fixed-wing, single engine | Flipper 1 LLC Fort Lauderdale, Florida |
Standard | 2024-05-30 | ValidFAA registration status code V: Valid registration. All codes |
| N255XM | Beech 95-C55 |
Fixed-wing, multi-engine | S-Tee CORP Mineri Wells, Texas |
Experimental | 2024-05-30 | ValidFAA registration status code V: Valid registration. All codes |
| N377RF | Beech F33C |
Fixed-wing, single engine | Global Flight Support and Sales INC Tampa, Florida |
Standard | 2024-05-29 | ValidFAA registration status code V: Valid registration. All codes |
| N23620 | Beech A36 |
Fixed-wing, single engine | Individual owner Nevada |
Standard | 2024-05-28 | ValidFAA registration status code V: Valid registration. All codes |
| N4991G | Cessna U206F |
Fixed-wing, single engine | Individual owner Florida |
Standard | 2024-05-27 | ValidFAA registration status code V: Valid registration. All codes |
| N440G | Beech V35B |
Fixed-wing, single engine | Co-owned owner Arizona |
Standard | 2024-05-26 | ValidFAA registration status code V: Valid registration. All codes |
| N1577W | Beech A36 |
Fixed-wing, single engine | Dshannon Products Ltdregistered Buffalo, Minnesota |
Standard | 2024-05-25 | ValidFAA registration status code V: Valid registration. All codes |
| N4644F | Cessna P206A |
Fixed-wing, single engine | Individual owner South Carolina |
Standard | 2024-05-25 | ValidFAA registration status code V: Valid registration. All codes |
| N555P | Beech 95-C55 |
Fixed-wing, multi-engine | Individual owner Michigan |
Standard | 2024-05-25 | ValidFAA registration status code V: Valid registration. All codes |
| N6650V | Bellanca 17-30 |
Fixed-wing, single engine | Individual owner Iowa |
Standard | 2024-05-23 | ValidFAA registration status code V: Valid registration. All codes |
| N66801 | Beech A36 |
Fixed-wing, single engine | Cirrus Management LLC Suwanee, Georgia |
Standard | 2024-05-23 | ValidFAA registration status code V: Valid registration. All codes |
| N9554G | Cessna U206F |
Fixed-wing, single engine | Individual owner Idaho |
Standard | 2024-05-23 | ValidFAA registration status code V: Valid registration. All codes |
| N7984K | Beech S35 |
Fixed-wing, single engine | Beech V-Tail LLC Aurora, Colorado |
Standard | 2024-05-22 | ValidFAA registration status code V: Valid registration. All codes |
| N4163S | Beech A36 |
Fixed-wing, single engine | Larson Family Farms LLC Haxtun, Colorado |
Standard | 2024-05-21 | ValidFAA registration status code V: Valid registration. All codes |
| N4613M | Beech A36 |
Fixed-wing, single engine | Individual owner Indiana |
Standard | 2024-05-21 | ValidFAA registration status code V: Valid registration. All codes |
| N6643V | Bellanca 17-30A |
Fixed-wing, single engine | Individual owner Kentucky |
Standard | 2024-05-21 | ValidFAA registration status code V: Valid registration. All codes |
| N210TF | Cessna 210A |
Fixed-wing, single engine | All About the Doodles INC Kirkland, Illinois |
Standard | 2024-05-17 | ValidFAA registration status code V: Valid registration. All codes |
| N23571 | Beech E-55 |
Fixed-wing, multi-engine | Dlat Holdings LLC Frisco, Texas |
Standard | 2024-05-17 | ValidFAA registration status code V: Valid registration. All codes |
| N6393S | Beech F33A |
Fixed-wing, single engine | Standard | 2024-05-17 | ValidFAA registration status code V: Valid registration. All codes | |
| N84777 | Cessna 210L |
Fixed-wing, single engine | Flight Path Partners LLC San Mateo, California |
Standard | 2024-05-16 | ValidFAA registration status code V: Valid registration. All codes |
| N4245A | Beech V35B |
Fixed-wing, single engine | Mac Flight LLC Conway, Arkansas |
Standard | 2024-05-15 | ValidFAA registration status code V: Valid registration. All codes |
| N4464Q | Cessna A188B |
Fixed-wing, single engine | Individual owner North Dakota |
Restricted | 2024-05-15 | ValidFAA registration status code V: Valid registration. All codes |
| N50939 | Cessna U206F |
Fixed-wing, single engine | Heart X Aviation LLC Salmon, Idaho |
Standard | 2024-05-15 | ValidFAA registration status code V: Valid registration. All codes |
| N714NT | Cessna A185F |
Fixed-wing, single engine | J&K Transportation LLC Tucson, Arizona |
Standard | 2024-05-15 | ValidFAA registration status code V: Valid registration. All codes |
| N8441N | Beech V35A |
Fixed-wing, single engine | Individual owner Georgia |
Standard | 2024-05-15 | ValidFAA registration status code V: Valid registration. All codes |
| N1454Q | Cessna U206F |
Fixed-wing, single engine | Individual owner Alaska |
Standard | 2024-05-14 | ValidFAA registration status code V: Valid registration. All codes |
| N758WP | Beech 58 |
Fixed-wing, multi-engine | Acr Aircraft LLC Dover, Delaware |
Standard | 2024-05-14 | ValidFAA registration status code V: Valid registration. All codes |
| N950D | Beech D55 |
Fixed-wing, multi-engine | Goodwill Aviation INC Dover, Delaware |
Standard | 2024-05-14 | ValidFAA registration status code V: Valid registration. All codes |
| N2107L | Beech A36 |
Fixed-wing, single engine | Co-owned owner Indiana |
Standard | 2024-05-12 | ValidFAA registration status code V: Valid registration. All codes |
| N741ES | Beech A36 |
Fixed-wing, single engine | Individual owner Louisiana |
Standard | 2024-05-12 | ValidFAA registration status code V: Valid registration. All codes |
| N121BE | Beech S35 |
Fixed-wing, single engine | Krdm LLC Fallon, Nevada |
Standard | 2024-05-11 | ValidFAA registration status code V: Valid registration. All codes |
| N4753M | Beech F33A |
Fixed-wing, single engine | Individual owner California |
Standard | 2024-05-11 | ValidFAA registration status code V: Valid registration. All codes |
| N518HJ | Cessna A185E |
Fixed-wing, single engine | Armstrong Consolidated LLC Anchorage, Alaska |
Standard | 2024-05-11 | ValidFAA registration status code V: Valid registration. All codes |
| N7159N | Beech V35A |
Fixed-wing, single engine | Romeo Bravo Aviation LLC Russellville, Kentucky |
Standard | 2024-05-11 | ValidFAA registration status code V: Valid registration. All codes |
| N72347 | Cessna U206D |
Fixed-wing, single engine | Hone Landscape Company LLC Carnation, Washington |
Standard | 2024-05-11 | ValidFAA registration status code V: Valid registration. All codes |
| N2717A | Beech V35A |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2024-05-10 | ValidFAA registration status code V: Valid registration. All codes |
| N6551C | Beech V35B |
Fixed-wing, single engine | Individual owner North Carolina |
Standard | 2024-05-10 | ValidFAA registration status code V: Valid registration. All codes |
| N23752 | Beech A36 |
Fixed-wing, single engine | Individual owner Mississippi |
Standard | 2024-05-08 | ValidFAA registration status code V: Valid registration. All codes |
| N2787A | Beech 36 |
Fixed-wing, single engine | Knudson Erik Chandler, Arizona |
Standard | 2024-05-08 | ValidFAA registration status code V: Valid registration. All codes |
| N3112X | Beech F33A |
Fixed-wing, single engine | Individual owner Massachusetts |
Standard | 2024-05-08 | ValidFAA registration status code V: Valid registration. All codes |
| N5832S | Beech S35 |
Fixed-wing, single engine | Individual owner Virginia |
Standard | 2024-05-08 | ValidFAA registration status code V: Valid registration. All codes |
| N8643Q | Beech S35 |
Fixed-wing, single engine | Firebird Aero LLC Phoenix, Arizona |
Standard | 2024-05-08 | 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 7, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.