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
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 1,046 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
- 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 |
|---|---|---|---|---|---|---|
| N13WW | Cessna A185F |
Fixed-wing, single engine | Individual owner Maine |
Standard | 2025-03-23 | ValidFAA registration status code V: Valid registration. All codes |
| N4143S | Beech V35B |
Fixed-wing, single engine | Co-owned owner California |
Standard | 2025-03-23 | ValidFAA registration status code V: Valid registration. All codes |
| N1016W | Beech V35B |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2025-03-22 | ValidFAA registration status code V: Valid registration. All codes |
| N3759Y | Cessna 210D |
Fixed-wing, single engine | Management Support Services LLC Naturita, Colorado |
Standard | 2025-03-22 | ValidFAA registration status code V: Valid registration. All codes |
| N15DT | Beech V35A |
Fixed-wing, single engine | Individual owner California |
Standard | 2025-03-21 | ValidFAA registration status code V: Valid registration. All codes |
| N28WB | Beech V35A |
Fixed-wing, single engine | Mulder Air INC Renville, Minnesota |
Standard | 2025-03-21 | ValidFAA registration status code V: Valid registration. All codes |
| N6034X | Beech A36 |
Fixed-wing, single engine | Hill Farms D&K LLC Condon, Oregon |
Standard | 2025-03-21 | ValidFAA registration status code V: Valid registration. All codes |
| N6039R | Beech A36 |
Fixed-wing, single engine | Withheld at owner's request | Standard | 2025-03-20 | ValidFAA registration status code V: Valid registration. All codes |
| N2943T | Aero Commander 200D |
Fixed-wing, single engine | N2943T LLC Fort Myers, Florida |
Standard | 2025-03-19 | ValidFAA registration status code V: Valid registration. All codes |
| N123TW | Beech A36 |
Fixed-wing, single engine | Individual owner Wyoming |
Standard | 2025-03-18 | ValidFAA registration status code V: Valid registration. All codes |
| N494A | Beech 95-C55 |
Fixed-wing, multi-engine | Individual owner Illinois |
Standard | 2025-03-18 | ValidFAA registration status code V: Valid registration. All codes |
| N81RJ | Beech A36 |
Fixed-wing, single engine | Individual owner Louisiana |
Standard | 2025-03-18 | ValidFAA registration status code V: Valid registration. All codes |
| N841ZS | Beech F33A |
Fixed-wing, single engine | Individual owner Ohio |
Standard | 2025-03-18 | ValidFAA registration status code V: Valid registration. All codes |
| N3070L | Cessna 310J |
Fixed-wing, multi-engine | Individual owner Arizona |
Standard | 2025-03-17 | ValidFAA registration status code V: Valid registration. All codes |
| N62LE | Beech A36 |
Fixed-wing, single engine | Mayfield Aviation LLC Salem, Utah |
Standard | 2025-03-17 | ValidFAA registration status code V: Valid registration. All codes |
| N9022S | Beech S35 |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2025-03-17 | ValidFAA registration status code V: Valid registration. All codes |
| N98LK | Beech V35B |
Fixed-wing, single engine | Mb Duncan INC Bakersfield, California |
Standard | 2025-03-17 | ValidFAA registration status code V: Valid registration. All codes |
| N3083J | Beech F33A |
Fixed-wing, single engine | Private Jet Solutions LLC Prior Lake, Minnesota |
Standard | 2025-03-15 | ValidFAA registration status code V: Valid registration. All codes |
| N41EC | Beech 58 |
Fixed-wing, multi-engine | Treeline Helicopters INC Bristol, Tennessee |
Standard | 2025-03-13 | ValidFAA registration status code V: Valid registration. All codes |
| N4904Q | Cessna A188B |
Fixed-wing, single engine | Foxtrot Air LLC Highmore, South Dakota |
Restricted | 2025-03-13 | ValidFAA registration status code V: Valid registration. All codes |
| N8000L | Beech V35 |
Fixed-wing, single engine | Individual owner Missouri |
Standard | 2025-03-13 | ValidFAA registration status code V: Valid registration. All codes |
| N8360N | Beech V35A |
Fixed-wing, single engine | Co-owned owner South Dakota |
Standard | 2025-03-13 | ValidFAA registration status code V: Valid registration. All codes |
| N2775T | Beech V35 |
Fixed-wing, single engine | Individual owner California |
Standard | 2025-03-12 | ValidFAA registration status code V: Valid registration. All codes |
| N4271S | Beech A36 |
Fixed-wing, single engine | Vk Aviation LLC Jennings, Louisiana |
Standard | 2025-03-12 | ValidFAA registration status code V: Valid registration. All codes |
| N93052 | Cessna 210L |
Fixed-wing, single engine | Pfm 2025 LLC Lake Forest, Illinois |
Standard | 2025-03-12 | ValidFAA registration status code V: Valid registration. All codes |
| N807T | Beech S35 |
Fixed-wing, single engine | Co-owned owner Arizona |
Standard | 2025-03-11 | ValidFAA registration status code V: Valid registration. All codes |
| N6165F | Cessna 210J |
Fixed-wing, single engine | Mainely Lobsters Gulf Breeze, Florida |
Standard | 2025-03-10 | ValidFAA registration status code V: Valid registration. All codes |
| N2059X | Beech 58 |
Fixed-wing, multi-engine | K Wings LLC Golden Valley, Minnesota |
Standard | 2025-03-09 | ValidFAA registration status code V: Valid registration. All codes |
| N1503U | Cessna U206F |
Fixed-wing, single engine | American Jet Center INC Chino, California |
Standard | 2025-03-08 | ValidFAA registration status code V: Valid registration. All codes |
| N29DA | Beech 58 |
Fixed-wing, multi-engine | Individual owner Pennsylvania |
Standard | 2025-03-08 | ValidFAA registration status code V: Valid registration. All codes |
| N3407L | Cessna U206B |
Fixed-wing, single engine | Individual owner Montana |
Standard | 2025-03-08 | ValidFAA registration status code V: Valid registration. All codes |
| N9179Q | Beech F33A |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2025-03-08 | ValidFAA registration status code V: Valid registration. All codes |
| N4726M | Beech F33A |
Fixed-wing, single engine | Individual owner Mississippi |
Standard | 2025-03-07 | ValidFAA registration status code V: Valid registration. All codes |
| N59299 | Cessna 210L |
Fixed-wing, single engine | Aircraft Guaranty CORP Trustee Oklahoma City, Oklahoma |
Standard | 2025-03-07 | ValidFAA registration status code V: Valid registration. All codes |
| N6261V | Beech V35 |
Fixed-wing, single engine | Sundance Air Service INC Alameda, California |
Standard | 2025-03-07 | ValidFAA registration status code V: Valid registration. All codes |
| N2126L | Beech V35B |
Fixed-wing, single engine | Individual owner Michigan |
Standard | 2025-03-06 | ValidFAA registration status code V: Valid registration. All codes |
| N761AQ | Cessna 210M |
Fixed-wing, single engine | Orangesocks Aviation LLC Chesterland, Ohio |
Standard | 2025-03-06 | ValidFAA registration status code V: Valid registration. All codes |
| N8073H | Beech F33A |
Fixed-wing, single engine | Individual owner Louisiana |
Standard | 2025-03-06 | ValidFAA registration status code V: Valid registration. All codes |
| N310VR | Cessna 310R |
Fixed-wing, multi-engine | Wg Aircraft Holding CORP Daytona Beach, Florida |
Standard | 2025-03-05 | ValidFAA registration status code V: Valid registration. All codes |
| N4756E | Cessna A185F |
Fixed-wing, single engine | Aero Missions INC Sylacauga, Alabama |
Standard | 2025-03-05 | ValidFAA registration status code V: Valid registration. All codes |
| N38DV | Beech 36 |
Fixed-wing, single engine | Medic Choppers LLC Springdale, Arkansas |
Standard | 2025-03-04 | ValidFAA registration status code V: Valid registration. All codes |
| N7691D | Cessna U206C |
Fixed-wing, single engine | Scout Aviation LLC Homer, Alaska |
Restricted | 2025-03-04 | ValidFAA registration status code V: Valid registration. All codes |
| N818SD | Beech S35 |
Fixed-wing, single engine | Individual owner California |
Standard | 2025-03-04 | ValidFAA registration status code V: Valid registration. All codes |
| N93518 | Bellanca 17-30A |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2025-03-04 | ValidFAA registration status code V: Valid registration. All codes |
| N241R | Beech F33A |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2025-03-03 | ValidFAA registration status code V: Valid registration. All codes |
| N3426L | Cessna U206B |
Fixed-wing, single engine | Co-owned owner Alaska |
Standard | 2025-03-03 | ValidFAA registration status code V: Valid registration. All codes |
| N4896R | Cessna A188B |
Fixed-wing, single engine | B&R Aerial Crop Care INC Connell, Washington |
Restricted | 2025-03-03 | ValidFAA registration status code V: Valid registration. All codes |
| N731MJ | Cessna U206F |
Fixed-wing, single engine | Lake Chelan Helicopters LLC Manson, Washington |
Standard | 2025-03-03 | ValidFAA registration status code V: Valid registration. All codes |
| N86440 | Cessna A188B |
Fixed-wing, single engine | Wilde Air Service-Huron LLC Volga, South Dakota |
Restricted | 2025-03-03 | ValidFAA registration status code V: Valid registration. All codes |
| N97NA | Navion NAVION H |
Fixed-wing, single engine | Individual owner Florida |
Standard | 2025-03-01 | ValidFAA registration status code V: Valid registration. All codes |
| N18381 | Beech F33A |
Fixed-wing, single engine | Texas Aero Services 1 LLC Frisco, Texas |
Standard | 2025-02-28 | ValidFAA registration status code V: Valid registration. All codes |
| N318NR | Cessna A185F |
Fixed-wing, single engine | Northern Arizona Investment Group LLC Prescott, Arizona |
Standard | 2025-02-28 | ValidFAA registration status code V: Valid registration. All codes |
| N3759Q | Beech V35 |
Fixed-wing, single engine | J & C Companies LLC Mesa, Arizona |
Standard | 2025-02-28 | ValidFAA registration status code V: Valid registration. All codes |
| N6106V | Beech S35 |
Fixed-wing, single engine | Individual owner New Mexico |
Standard | 2025-02-28 | ValidFAA registration status code V: Valid registration. All codes |
| N5421F | Cessna 421C |
Fixed-wing, multi-engine | Co-owned owner Indiana |
Standard | 2025-02-27 | ValidFAA registration status code V: Valid registration. All codes |
| N61PZ | Beech 58 |
Fixed-wing, multi-engine | Roughneck Supply LLC Muskogee, Oklahoma |
Standard | 2025-02-27 | ValidFAA registration status code V: Valid registration. All codes |
| N8735Z | Cessna P206D |
Fixed-wing, single engine | Individual owner Arkansas |
Standard | 2025-02-27 | ValidFAA registration status code V: Valid registration. All codes |
| N18998 | Beech V35B |
Fixed-wing, single engine | Duffer Management LLC Carlsbad, California |
Standard | 2025-02-26 | ValidFAA registration status code V: Valid registration. All codes |
| N19DJ | Cessna 310R |
Fixed-wing, multi-engine | Individual owner North Dakota |
Standard | 2025-02-26 | ValidFAA registration status code V: Valid registration. All codes |
| N23714 | Beech A36 |
Fixed-wing, single engine | Dyk Aviation LLC Williston, North Dakota |
Standard | 2025-02-26 | ValidFAA registration status code V: Valid registration. All codes |
| N215J | Cessna 210K |
Fixed-wing, single engine | Innovative Aerodynamic Technologies Yorktown, Virginia |
Experimental | 2025-02-25 | ValidFAA registration status code V: Valid registration. All codes |
| N67353 | Beech A36 |
Fixed-wing, single engine | Standard | 2025-02-25 | ValidFAA registration status code V: Valid registration. All codes | |
| N202MD | Beech 95-C55 |
Fixed-wing, multi-engine | Hay Pile Aviation LLC Gilbert, Arizona |
Standard | 2025-02-24 | ValidFAA registration status code V: Valid registration. All codes |
| N58SS | Beech A36 |
Fixed-wing, single engine | Individual owner Florida |
Standard | 2025-02-22 | ValidFAA registration status code V: Valid registration. All codes |
| N5982F | Cessna 210H |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2025-02-22 | ValidFAA registration status code V: Valid registration. All codes |
| N7246A | Beech F33A |
Fixed-wing, single engine | Individual owner California |
Standard | 2025-02-22 | ValidFAA registration status code V: Valid registration. All codes |
| N767U | Beech V35A |
Fixed-wing, single engine | Withheld at owner's request | Standard | 2025-02-21 | ValidFAA registration status code V: Valid registration. All codes |
| N100WS | Beech F33A |
Fixed-wing, single engine | Qualitair LLC Trustee Michelstadt, |
Standard | 2025-02-20 | ValidFAA registration status code V: Valid registration. All codes |
| N707ER | Cessna 210M |
Fixed-wing, single engine | Crossbrook LLC Willoughby, Ohio |
Standard | 2025-02-20 | ValidFAA registration status code V: Valid registration. All codes |
| N6728L | Beech 58 |
Fixed-wing, multi-engine | Hancock Aircraft Sales LLC Baton Rouge, Louisiana |
Standard | 2025-02-19 | ValidFAA registration status code V: Valid registration. All codes |
| N3830Y | Cessna 210D |
Fixed-wing, single engine | Individual owner Colorado |
Standard | 2025-02-18 | ValidFAA registration status code V: Valid registration. All codes |
| N3970G | Cessna U206C |
Fixed-wing, single engine | Back Country Flying Experience INC Kalispell, Montana |
Standard | 2025-02-18 | ValidFAA registration status code V: Valid registration. All codes |
| N5447U | Beech 35-C33A |
Fixed-wing, single engine | Fly Boston Bailey LLC Gilbert, Arizona |
Standard | 2025-02-18 | ValidFAA registration status code V: Valid registration. All codes |
| N8592Q | Cessna U206F |
Fixed-wing, single engine | Skyview Aviation Holdings LLC The Hills, Texas |
Standard | 2025-02-18 | ValidFAA registration status code V: Valid registration. All codes |
| N136KC | Beech A36 |
Fixed-wing, single engine | Prescribed Agriculture Services INC Bakersfield, California |
Standard | 2025-02-17 | ValidFAA registration status code V: Valid registration. All codes |
| N2195F | Cessna U206 |
Fixed-wing, single engine | Individual owner Oregon |
Standard | 2025-02-17 | ValidFAA registration status code V: Valid registration. All codes |
| N7974K | Beech S35 |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2025-02-17 | ValidFAA registration status code V: Valid registration. All codes |
| N288F | Beech S35 |
Fixed-wing, single engine | Groove LLC Afton, Virginia |
Standard | 2025-02-15 | ValidFAA registration status code V: Valid registration. All codes |
| N5633S | Beech V35 |
Fixed-wing, single engine | Qualitair LLC Michelstadt, |
Standard | 2025-02-15 | ValidFAA registration status code V: Valid registration. All codes |
| N5826K | Beech S35 |
Fixed-wing, single engine | Obiewan Air Services LLC Manvel, Texas |
Standard | 2025-02-15 | ValidFAA registration status code V: Valid registration. All codes |
| N5887S | Beech S35 |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2025-02-15 | ValidFAA registration status code V: Valid registration. All codes |
| N500SB | Beech A36 |
Fixed-wing, single engine | Individual owner Michigan |
Standard | 2025-02-14 | ValidFAA registration status code V: Valid registration. All codes |
| N4316W | Beech F33A |
Fixed-wing, single engine | Individual owner New York |
Standard | 2025-02-13 | ValidFAA registration status code V: Valid registration. All codes |
| N8375Q | Cessna A185F |
Fixed-wing, single engine | Individual owner Nevada |
Standard | 2025-02-12 | ValidFAA registration status code V: Valid registration. All codes |
| N1864F | Cessna 210F |
Fixed-wing, single engine | Co-owned owner Nevada |
Standard | 2025-02-10 | ValidFAA registration status code V: Valid registration. All codes |
| N40NY | Cessna 414 |
Fixed-wing, multi-engine | Johnson Elite International LLC Tucson, Arizona |
Standard | 2025-02-10 | ValidFAA registration status code V: Valid registration. All codes |
| N7565H | Cessna A185F |
Fixed-wing, single engine | Individual owner Alaska |
Standard | 2025-02-10 | ValidFAA registration status code V: Valid registration. All codes |
| N6125F | Cessna 210H |
Fixed-wing, single engine | Individual owner Illinois |
Standard | 2025-02-09 | ValidFAA registration status code V: Valid registration. All codes |
| N6769R | Cessna T210F |
Fixed-wing, single engine | Individual owner Alabama |
Standard | 2025-02-09 | ValidFAA registration status code V: Valid registration. All codes |
| N2901L | Beech 58 |
Fixed-wing, multi-engine | Straight & Level Aviation LLC Bradenton, Florida |
Standard | 2025-02-07 | ValidFAA registration status code V: Valid registration. All codes |
| N3XT | Beech V35B |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2025-02-07 | ValidFAA registration status code V: Valid registration. All codes |
| N775P | Cessna TU206B |
Fixed-wing, single engine | Skydive Seneca Lake LLC Ovid, New York |
Standard | 2025-02-07 | ValidFAA registration status code V: Valid registration. All codes |
| N10L | Beech A36 |
Fixed-wing, single engine | Five States Holdings LLC Helena, Montana |
Standard | 2025-02-06 | ValidFAA registration status code V: Valid registration. All codes |
| N2255A | Beech E33A |
Fixed-wing, single engine | Individual owner Missouri |
Standard | 2025-02-06 | ValidFAA registration status code V: Valid registration. All codes |
| N93622 | Bellanca 17-30A |
Fixed-wing, single engine | Co-owned owner South Dakota |
Standard | 2025-02-06 | ValidFAA registration status code V: Valid registration. All codes |
| N9048S | Beech V35 |
Fixed-wing, single engine | Co-owned owner Texas |
Standard | 2025-02-05 | ValidFAA registration status code V: Valid registration. All codes |
| N9653E | Bellanca 17-30A |
Fixed-wing, single engine | Spruce Goose Aircraft LLC Blaine, Minnesota |
Standard | 2025-02-05 | ValidFAA registration status code V: Valid registration. All codes |
| N19SL | Beech V35B |
Fixed-wing, single engine | Mifflin Enterprises LLC Mansfield, Ohio |
Standard | 2025-02-04 | ValidFAA registration status code V: Valid registration. All codes |
| N2392F | Cessna 210E |
Fixed-wing, single engine | Dingo Aviation LLC Kalispell, Montana |
Standard | 2025-02-04 | ValidFAA registration status code V: Valid registration. All codes |
| N6298V | Beech V35A |
Fixed-wing, single engine | Withheld at owner's request | Standard | 2025-02-04 | 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.