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
Texas1,046California792Alaska673Florida566Delaware326Arizona312Montana276Washington274Colorado265Georgia250
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
No FAA order in the current files names 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.
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
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 1,046 of these aircraft
- California 792 of these aircraft
- Alaska 673 of these aircraft
- Florida 566 of these aircraft
- Delaware 326 of these aircraft
Biggest operators
- Bas Part Sales LLC 27 of these aircraft
- Southern Aircraft Consultancy INC Trustee 12 of these aircraft
- Gta Air INC 12 of these aircraft
- International Air Services INC Trustee 11 of these aircraft
- United States Department Of Interior 10 of these aircraft
Airworthiness
- 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 |
|---|---|---|---|---|---|---|
| N575NV | Beech D55 |
Fixed-wing, multi-engine | Southern Aircraft Consultancy INC Trustee Casper, Wyoming |
Standard | 2026-02-14 | ValidFAA registration status code V: Valid registration. All codes |
| N1535W | Beech F33A |
Fixed-wing, single engine | Individual owner California |
Standard | 2026-02-13 | ValidFAA registration status code V: Valid registration. All codes |
| N1770X | Cessna 210L |
Fixed-wing, single engine | Park Avenue Group INC Stuart, Florida |
Standard | 2026-02-12 | ValidFAA registration status code V: Valid registration. All codes |
| N554CL | Beech 95-C55 |
Fixed-wing, multi-engine | Co-owned owner California |
Standard | 2026-02-12 | ValidFAA registration status code V: Valid registration. All codes |
| N210NM | Cessna 210K |
Fixed-wing, single engine | Southern Aircraft Consultancy INC Trustee Casper, Wyoming |
Standard | 2026-02-11 | ValidFAA registration status code V: Valid registration. All codes |
| N2YE | Cessna 310R |
Fixed-wing, multi-engine | Allied Moulded Products INC Bryan, Ohio |
Standard | 2026-02-11 | ValidFAA registration status code V: Valid registration. All codes |
| N458K | Beech 58 |
Fixed-wing, multi-engine | August Aero LLC Kalispell, Montana |
Standard | 2026-02-10 | ValidFAA registration status code V: Valid registration. All codes |
| N1971V | Bellanca 17-30A |
Fixed-wing, single engine | Individual owner Washington |
Standard | 2026-02-09 | ValidFAA registration status code V: Valid registration. All codes |
| N40TE | Beech F33A |
Fixed-wing, single engine | Wild Warbirds LLC Uvalde, Texas |
Standard | 2026-02-09 | ValidFAA registration status code V: Valid registration. All codes |
| N4549F | Cessna A185E |
Fixed-wing, single engine | Metroaire LLC Mc Kees Rocks, Pennsylvania |
Standard | 2026-02-09 | ValidFAA registration status code V: Valid registration. All codes |
| N6682Z | Beech A36 |
Fixed-wing, single engine | Individual owner Missouri |
Standard | 2026-02-09 | ValidFAA registration status code V: Valid registration. All codes |
| N9276Q | Beech F33A |
Fixed-wing, single engine | Sunrise Aeronautics LLC Punta Gorda, Florida |
Standard | 2026-02-09 | ValidFAA registration status code V: Valid registration. All codes |
| N8246V | Beech F33A |
Fixed-wing, single engine | Caliber Construction INC Columbia, Kentucky |
Standard | 2026-02-08 | ValidFAA registration status code V: Valid registration. All codes |
| N3772Y | Cessna 210D |
Fixed-wing, single engine | Individual owner California |
Standard | 2026-02-07 | ValidFAA registration status code V: Valid registration. All codes |
| N46DM | Beech 58 |
Fixed-wing, multi-engine | Sky and CO Holdings LLC Wilmington, North Carolina |
Standard | 2026-02-07 | ValidFAA registration status code V: Valid registration. All codes |
| N7905M | Beech 95-C55 |
Fixed-wing, multi-engine | Individual owner Pennsylvania |
Standard | 2026-02-07 | ValidFAA registration status code V: Valid registration. All codes |
| N18475 | Beech 58 |
Fixed-wing, multi-engine | Gerlach and Associates LLC Valparaiso, Indiana |
Standard | 2026-02-06 | ValidFAA registration status code V: Valid registration. All codes |
| N185JH | Cessna A185F |
Fixed-wing, single engine | Southern Aircraft Consultancy INC Trustee Casper, Wyoming |
Standard | 2026-02-06 | ValidFAA registration status code V: Valid registration. All codes |
| N185MW | Cessna A185F |
Fixed-wing, single engine | Southern Aircraft Consultancy INC Trustee Casper, Wyoming |
Standard | 2026-02-06 | ValidFAA registration status code V: Valid registration. All codes |
| N249SP | Cessna 210L |
Fixed-wing, single engine | Southern Aircraft Consultancy INC Trustee Casper, Wyoming |
Standard | 2026-02-06 | ValidFAA registration status code V: Valid registration. All codes |
| N6497E | Cessna A185F |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2026-02-06 | ValidFAA registration status code V: Valid registration. All codes |
| N99DA | Beech 58 |
Fixed-wing, multi-engine | Auburn Aero Holdings LLC Auburn, Indiana |
Standard | 2026-02-06 | ValidFAA registration status code V: Valid registration. All codes |
| N2299L | Beech F33A |
Fixed-wing, single engine | Southern Aircraft Consultancy INC Trustee Casper, Wyoming |
Standard | 2026-02-05 | ValidFAA registration status code V: Valid registration. All codes |
| N647DK | Beech V35 |
Fixed-wing, single engine | Sch Aviation INC Trustee Sporle Kings Lynn, |
Standard | 2026-02-05 | ValidFAA registration status code V: Valid registration. All codes |
| N1592W | Beech F33A |
Fixed-wing, single engine | Debonair Flying Club INC Medon, Tennessee |
Standard | 2026-02-04 | ValidFAA registration status code V: Valid registration. All codes |
| N6695H | Beech V35B |
Fixed-wing, single engine | Megan Anderson Nursing Services INC Yucaipa, California |
Standard | 2026-02-04 | ValidFAA registration status code V: Valid registration. All codes |
| N3743Y | Cessna 210D |
Fixed-wing, single engine | Co-owned owner Washington |
Standard | 2026-02-03 | ValidFAA registration status code V: Valid registration. All codes |
| N4515S | Beech A36 |
Fixed-wing, single engine | Harris Aviation LLC Texarkana, Texas |
Standard | 2026-02-03 | ValidFAA registration status code V: Valid registration. All codes |
| N827V | Beech A36 |
Fixed-wing, single engine | Moore Plane Fun LLC Toledo, Ohio |
Standard | 2026-02-03 | ValidFAA registration status code V: Valid registration. All codes |
| N206RH | Cessna 206 |
Fixed-wing, single engine | Pure Sports INC Tavares, Florida |
Standard | 2026-02-02 | ValidFAA registration status code V: Valid registration. All codes |
| N5727N | Cessna A185F |
Fixed-wing, single engine | Qualitair LLC Micheistadt, |
Standard | 2026-02-02 | ValidFAA registration status code V: Valid registration. All codes |
| N1807N | Beech 58 |
Fixed-wing, multi-engine | Double Barrel Aviation LLC Fort Valley, Georgia |
Standard | 2026-02-01 | ValidFAA registration status code V: Valid registration. All codes |
| N179R | Beech V35B |
Fixed-wing, single engine | Myers Aviation INC Oshkosh, Wisconsin |
Standard | 2026-01-30 | ValidFAA registration status code V: Valid registration. All codes |
| N2668A | Cessna 421C |
Fixed-wing, multi-engine | Southern Aircraft Consultancy INC Trustee Casper, Wyoming |
Standard | 2026-01-29 | ValidFAA registration status code V: Valid registration. All codes |
| N533S | Beech V35 |
Fixed-wing, single engine | Co-owned owner Missouri |
Standard | 2026-01-29 | ValidFAA registration status code V: Valid registration. All codes |
| N28191 | Bellanca 17-30A |
Fixed-wing, single engine | Individual owner Wyoming |
Standard | 2026-01-28 | ValidFAA registration status code V: Valid registration. All codes |
| N3BR | Beech V35B |
Fixed-wing, single engine | Southern Aircraft Consultancy INC Trustee Casper, Wyoming |
Standard | 2026-01-28 | ValidFAA registration status code V: Valid registration. All codes |
| N4104S | Beech F33A |
Fixed-wing, single engine | Sky West Aviation INC Trustee Albuquerque, New Mexico |
Standard | 2026-01-28 | ValidFAA registration status code V: Valid registration. All codes |
| N721RS | Beech V35 |
Fixed-wing, single engine | Individual owner California |
Standard | 2026-01-28 | ValidFAA registration status code V: Valid registration. All codes |
| N5245J | Cessna 310R |
Fixed-wing, multi-engine | Individual owner Georgia |
Standard | 2026-01-26 | ValidFAA registration status code V: Valid registration. All codes |
| N60526 | Beech E-55 |
Fixed-wing, multi-engine | Sch Aviation INC Owner Trustee Sporle Kings Lynn, |
Standard | 2026-01-26 | ValidFAA registration status code V: Valid registration. All codes |
| N3900G | Cessna U206B |
Fixed-wing, single engine | Co-owned owner Arkansas |
Standard | 2026-01-23 | ValidFAA registration status code V: Valid registration. All codes |
| N1023F | Cessna A185F |
Fixed-wing, single engine | Individual owner Arizona |
Standard | 2026-01-22 | ValidFAA registration status code V: Valid registration. All codes |
| N1280G | Cessna 310R |
Fixed-wing, multi-engine | Sky Aviation and Consulting Panorama City, California |
Standard | 2026-01-22 | ValidFAA registration status code V: Valid registration. All codes |
| N4563S | Beech F33A |
Fixed-wing, single engine | Individual owner Nevada |
Standard | 2026-01-22 | ValidFAA registration status code V: Valid registration. All codes |
| N15PM | Beech A36 |
Fixed-wing, single engine | Dodson International Parts INC Rantoul, Kansas |
Standard | 2026-01-21 | ValidFAA registration status code V: Valid registration. All codes |
| N2383A | Beech V35A |
Fixed-wing, single engine | Aero Traveler LTD Warminster, Pennsylvania |
Standard | 2026-01-20 | ValidFAA registration status code V: Valid registration. All codes |
| N4808J | Beech V35 |
Fixed-wing, single engine | Jm Beech V LLC Winchester, Tennessee |
Standard | 2026-01-20 | ValidFAA registration status code V: Valid registration. All codes |
| N213JD | Cessna 310R |
Fixed-wing, multi-engine | S&C Vending LLC Scottsbluff, Nebraska |
Standard | 2026-01-18 | ValidFAA registration status code V: Valid registration. All codes |
| N87464 | Cessna 310R |
Fixed-wing, multi-engine | Wells Legacy Consultants LLC Hickory Creek, Texas |
Standard | 2026-01-18 | ValidFAA registration status code V: Valid registration. All codes |
| N12BU | Beech D55 |
Fixed-wing, multi-engine | Co-owned owner South Carolina |
Standard | 2026-01-17 | ValidFAA registration status code V: Valid registration. All codes |
| N362A | Beech A36 |
Fixed-wing, single engine | Standard | 2026-01-17 | ValidFAA registration status code V: Valid registration. All codes | |
| N5876J | Beech S35 |
Fixed-wing, single engine | 76Juliet Aviation LLC Firth, Nebraska |
Standard | 2026-01-17 | ValidFAA registration status code V: Valid registration. All codes |
| N969V | Beech V35A |
Fixed-wing, single engine | International Air Services INC Trustee Carson City, Nevada |
Standard | 2026-01-14 | ValidFAA registration status code V: Valid registration. All codes |
| N1235C | Beech F33A |
Fixed-wing, single engine | Individual owner Georgia |
Standard | 2026-01-13 | ValidFAA registration status code V: Valid registration. All codes |
| N264SB | Beech E-55 |
Fixed-wing, multi-engine | Ckw Aviation LLC Dalhart, Texas |
Standard | 2026-01-13 | ValidFAA registration status code V: Valid registration. All codes |
| N6397E | Cessna A185F |
Fixed-wing, single engine | North Country Aviation Aircraft Leasing LLC Bingham, Maine |
Standard | 2026-01-13 | ValidFAA registration status code V: Valid registration. All codes |
| N9126Q | Beech V35B |
Fixed-wing, single engine | Sks Aviation LLC Sherman, Texas |
Standard | 2026-01-13 | ValidFAA registration status code V: Valid registration. All codes |
| N1190Q | Cessna 210L |
Fixed-wing, single engine | Individual owner New Hampshire |
Standard | 2026-01-12 | ValidFAA registration status code V: Valid registration. All codes |
| N9022Q | Beech F33A |
Fixed-wing, single engine | Heading 360 LLC Safford, Arizona |
Standard | 2026-01-12 | ValidFAA registration status code V: Valid registration. All codes |
| N33247 | Cessna U206F |
Fixed-wing, single engine | R House Leasing LLC Stormville, New York |
Standard | 2026-01-11 | ValidFAA registration status code V: Valid registration. All codes |
| N1821F | Cessna 210F |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2026-01-09 | ValidFAA registration status code V: Valid registration. All codes |
| N6705H | Cessna A185F |
Fixed-wing, single engine | Kobuk Valley Outfitters CO Kiana, Alaska |
Standard | 2026-01-09 | ValidFAA registration status code V: Valid registration. All codes |
| N44Y | Beech A45 |
Fixed-wing, single engine | Co-owned owner California |
Standard | 2026-01-08 | ValidFAA registration status code V: Valid registration. All codes |
| N612TT | Beech 35-C33A |
Fixed-wing, single engine | Individual owner California |
Standard | 2026-01-08 | ValidFAA registration status code V: Valid registration. All codes |
| N674T | Beech V35A |
Fixed-wing, single engine | Tumbling Mirth Mt LLC Cody, Wyoming |
Standard | 2026-01-08 | ValidFAA registration status code V: Valid registration. All codes |
| N70194 | Cessna A185E |
Fixed-wing, single engine | Individual owner Colorado |
Standard | 2026-01-08 | ValidFAA registration status code V: Valid registration. All codes |
| N4795Q | Cessna A188B |
Fixed-wing, single engine | Hinkle Airspray INC Cavalier, North Dakota |
Restricted | 2026-01-07 | ValidFAA registration status code V: Valid registration. All codes |
| N67DR | Beech V35B |
Fixed-wing, single engine | Co-owned owner South Dakota |
Standard | 2026-01-07 | ValidFAA registration status code V: Valid registration. All codes |
| N1024T | Beech V35B |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2026-01-06 | ValidFAA registration status code V: Valid registration. All codes |
| N15VM | Beech V35B |
Fixed-wing, single engine | Individual owner Tennessee |
Standard | 2026-01-06 | ValidFAA registration status code V: Valid registration. All codes |
| N8703Z | Cessna P206C |
Fixed-wing, single engine | Co-owned owner Texas |
Standard | 2026-01-06 | ValidFAA registration status code V: Valid registration. All codes |
| N99NT | Beech V35 |
Fixed-wing, single engine | Co-owned owner Missouri |
Standard | 2026-01-06 | ValidFAA registration status code V: Valid registration. All codes |
| N1555W | Beech F33A |
Fixed-wing, single engine | Individual owner Florida |
Standard | 2026-01-05 | ValidFAA registration status code V: Valid registration. All codes |
| N9282Q | Beech E-55 |
Fixed-wing, multi-engine | Msxpert LLC Sheridan, Wyoming |
Standard | 2026-01-05 | ValidFAA registration status code V: Valid registration. All codes |
| N81HW | Cessna A185F |
Fixed-wing, single engine | Individual owner Louisiana |
Standard | 2026-01-04 | ValidFAA registration status code V: Valid registration. All codes |
| N3969Y | Cessna 210D |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2026-01-03 | ValidFAA registration status code V: Valid registration. All codes |
| N1184J | Beech A36 |
Fixed-wing, single engine | D&D Chessies LLC Wilmington, Delaware |
Standard | 2026-01-01 | ValidFAA registration status code V: Valid registration. All codes |
| N45TA | Beech V35 |
Fixed-wing, single engine | Michalek Construction INC Keosauqua, Iowa |
Standard | 2026-01-01 | ValidFAA registration status code V: Valid registration. All codes |
| N3097W | Beech F33A |
Fixed-wing, single engine | Co-owned owner New Mexico |
Standard | 2025-12-30 | ValidFAA registration status code V: Valid registration. All codes |
| N3797Y | Cessna 210D |
Fixed-wing, single engine | Individual owner Maryland |
Standard | 2025-12-30 | ValidFAA registration status code V: Valid registration. All codes |
| N46MB | Piper PA-46-310P |
Fixed-wing, single engine | Aig Aeronautics LLC Guaynabo, Puerto Rico |
Standard | 2025-12-30 | ValidFAA registration status code V: Valid registration. All codes |
| N7MV | Meyers Industries Inc 200C |
Fixed-wing, single engine | Smooth Landing LLC Dallas, Texas |
Standard | 2025-12-30 | ValidFAA registration status code V: Valid registration. All codes |
| N3739B | Beech 58 |
Fixed-wing, multi-engine | Clipper Air LLC Cresson, Texas |
Standard | 2025-12-27 | ValidFAA registration status code V: Valid registration. All codes |
| N6234Z | Beech A36 |
Fixed-wing, single engine | Co-owned owner North Carolina |
Standard | 2025-12-27 | ValidFAA registration status code V: Valid registration. All codes |
| N1671W | Beech V35B |
Fixed-wing, single engine | Aviatech INC Tamarac, Florida |
Standard | 2025-12-26 | ValidFAA registration status code V: Valid registration. All codes |
| N6054D | Beech F33A |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2025-12-26 | ValidFAA registration status code V: Valid registration. All codes |
| N6566V | Bellanca 17-30 |
Fixed-wing, single engine | Individual owner Minnesota |
Standard | 2025-12-26 | ValidFAA registration status code V: Valid registration. All codes |
| N7735R | Beech E33C |
Fixed-wing, single engine | Javelin Banana LLC Erda, Utah |
Standard | 2025-12-26 | ValidFAA registration status code V: Valid registration. All codes |
| N92SE | Beech F33A |
Fixed-wing, single engine | N92Se LLC Santa Barbara, California |
Standard | 2025-12-26 | ValidFAA registration status code V: Valid registration. All codes |
| N58DL | Beech 58 |
Fixed-wing, multi-engine | Individual owner Tennessee |
Standard | 2025-12-25 | ValidFAA registration status code V: Valid registration. All codes |
| N2YR | Cessna U206F |
Fixed-wing, single engine | Overland Missions INC Cocoa, Florida |
Standard | 2025-12-23 | ValidFAA registration status code V: Valid registration. All codes |
| N184MB | Beech E-55 |
Fixed-wing, multi-engine | Baker Aviation Consulting LLC Summerland Key, Florida |
Standard | 2025-12-22 | ValidFAA registration status code V: Valid registration. All codes |
| N4958Q | Cessna A188B |
Fixed-wing, single engine | Individual owner Montana |
Restricted | 2025-12-22 | ValidFAA registration status code V: Valid registration. All codes |
| N20234 | Beech F33A |
Fixed-wing, single engine | Emaw Properties LLC Ketchum, Oklahoma |
Standard | 2025-12-21 | ValidFAA registration status code V: Valid registration. All codes |
| N2028W | Beech 95-C55 |
Fixed-wing, multi-engine | N2028W LLC Oakdale, California |
Standard | 2025-12-21 | ValidFAA registration status code V: Valid registration. All codes |
| N35NB | Beech V35B |
Fixed-wing, single engine | Individual owner Florida |
Standard | 2025-12-18 | ValidFAA registration status code V: Valid registration. All codes |
| N59AJ | Cessna A185F |
Fixed-wing, single engine | Bird Dog Aircraft LLC Billings, Montana |
Experimental | 2025-12-18 | ValidFAA registration status code V: Valid registration. All codes |
| N7958P | Beech F33A |
Fixed-wing, single engine | Individual owner South Carolina |
Standard | 2025-12-18 | ValidFAA registration status code V: Valid registration. All codes |
| N2557T | Navion NAVION H |
Fixed-wing, single engine | Southwest Aircraft LLC Fairacres, New Mexico |
Standard | 2025-12-17 | 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.