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 |
|---|---|---|---|---|---|---|
| N55AE | Beech 95-C55 |
Fixed-wing, multi-engine | Individual owner Washington |
Standard | 2025-05-16 | ValidFAA registration status code V: Valid registration. All codes |
| N185TS | Cessna A185F |
Fixed-wing, single engine | Co-owned owner Missouri |
Standard | 2025-05-15 | ValidFAA registration status code V: Valid registration. All codes |
| N406T | Beech V35 |
Fixed-wing, single engine | Level Wings LLC Jefferson City, Missouri |
Standard | 2025-05-14 | ValidFAA registration status code V: Valid registration. All codes |
| N4823J | Beech V35 |
Fixed-wing, single engine | Individual owner Florida |
Standard | 2025-05-14 | ValidFAA registration status code V: Valid registration. All codes |
| N8222M | Cessna 210K |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2025-05-14 | ValidFAA registration status code V: Valid registration. All codes |
| N185TT | Cessna A185F |
Fixed-wing, single engine | Lucky Irishman LLC Pebble Beach, California |
Standard | 2025-05-13 | ValidFAA registration status code V: Valid registration. All codes |
| N783TM | Beech V35B |
Fixed-wing, single engine | Individual owner Mississippi |
Standard | 2025-05-13 | ValidFAA registration status code V: Valid registration. All codes |
| N4124S | Beech A36 |
Fixed-wing, single engine | Avondale Aviation LLC Park Ridge, Illinois |
Standard | 2025-05-12 | ValidFAA registration status code V: Valid registration. All codes |
| N8137L | Cessna 210L |
Fixed-wing, single engine | Individual owner Missouri |
Standard | 2025-05-12 | ValidFAA registration status code V: Valid registration. All codes |
| N3632A | Beech V35B |
Fixed-wing, single engine | Co-owned owner Michigan |
Standard | 2025-05-09 | ValidFAA registration status code V: Valid registration. All codes |
| N8213R | Bellanca 17-30A |
Fixed-wing, single engine | Individual owner North Carolina |
Standard | 2025-05-09 | ValidFAA registration status code V: Valid registration. All codes |
| N16CJ | Cessna U206F |
Fixed-wing, single engine | Royale Air Service INC Fort Myers, Florida |
Standard | 2025-05-08 | ValidFAA registration status code V: Valid registration. All codes |
| N17931 | Beech A36 |
Fixed-wing, single engine | Unlimited Sky LLC Swansboro, North Carolina |
Standard | 2025-05-08 | ValidFAA registration status code V: Valid registration. All codes |
| N2002W | Beech V35 |
Fixed-wing, single engine | Individual owner Oklahoma |
Standard | 2025-05-08 | ValidFAA registration status code V: Valid registration. All codes |
| N278CR | Beech F33A |
Fixed-wing, single engine | Individual owner Michigan |
Standard | 2025-05-08 | ValidFAA registration status code V: Valid registration. All codes |
| N34JP | Beech F33C |
Fixed-wing, single engine | Dakota Aircraft INC Pierre, South Dakota |
Standard | 2025-05-08 | ValidFAA registration status code V: Valid registration. All codes |
| N4194Q | Cessna TU206D |
Fixed-wing, single engine | Individual owner Alaska |
Standard | 2025-05-08 | ValidFAA registration status code V: Valid registration. All codes |
| N15DQ | Bellanca 17-30A |
Fixed-wing, single engine | Co-owned owner Colorado |
Standard | 2025-05-07 | ValidFAA registration status code V: Valid registration. All codes |
| N3925Y | Cessna 210D |
Fixed-wing, single engine | Individual owner Ohio |
Standard | 2025-05-07 | ValidFAA registration status code V: Valid registration. All codes |
| N93904 | Cessna A185F |
Fixed-wing, single engine | Wagon Air LLC Anchorage, Alaska |
Standard | 2025-05-07 | ValidFAA registration status code V: Valid registration. All codes |
| N40V | Beech E-55 |
Fixed-wing, multi-engine | Individual owner Georgia |
Standard | 2025-05-06 | ValidFAA registration status code V: Valid registration. All codes |
| N1604M | Beech 58 |
Fixed-wing, multi-engine | Individual owner Alabama |
Standard | 2025-05-05 | ValidFAA registration status code V: Valid registration. All codes |
| N8240T | Beech F33A |
Fixed-wing, single engine | Individual owner California |
Standard | 2025-05-05 | ValidFAA registration status code V: Valid registration. All codes |
| N222JP | Beech F33A |
Fixed-wing, single engine | I Am Aviation LLC Pagosa Springs, Colorado |
Standard | 2025-05-04 | ValidFAA registration status code V: Valid registration. All codes |
| N6DH | Beech F33A |
Fixed-wing, single engine | Individual owner California |
Standard | 2025-05-04 | ValidFAA registration status code V: Valid registration. All codes |
| N6861R | Cessna T210G |
Fixed-wing, single engine | Co-owned owner Montana |
Standard | 2025-05-03 | ValidFAA registration status code V: Valid registration. All codes |
| N111GM | Beech V35B |
Fixed-wing, single engine | Individual owner California |
Standard | 2025-05-02 | ValidFAA registration status code V: Valid registration. All codes |
| N197FM | Beech F33A |
Fixed-wing, single engine | Co-owned owner Texas |
Standard | 2025-05-02 | ValidFAA registration status code V: Valid registration. All codes |
| N2059W | Beech V35 |
Fixed-wing, single engine | Individual owner Florida |
Standard | 2025-05-02 | ValidFAA registration status code V: Valid registration. All codes |
| N514CS | Beech S35 |
Fixed-wing, single engine | Tomco Stores LTD Ruidoso, New Mexico |
Standard | 2025-05-02 | ValidFAA registration status code V: Valid registration. All codes |
| N5224U | Cessna 206 |
Fixed-wing, single engine | Neil Anthony Foster Holdings LLC Santa Rosa, California |
Standard | 2025-05-02 | ValidFAA registration status code V: Valid registration. All codes |
| N5255A | Cessna 210N |
Fixed-wing, single engine | Individual owner Ohio |
Standard | 2025-05-01 | ValidFAA registration status code V: Valid registration. All codes |
| N5835S | Beech S35 |
Fixed-wing, single engine | Individual owner Florida |
Standard | 2025-05-01 | ValidFAA registration status code V: Valid registration. All codes |
| N830CC | Beech 58 |
Fixed-wing, multi-engine | Individual owner Georgia |
Standard | 2025-05-01 | ValidFAA registration status code V: Valid registration. All codes |
| N7991M | Beech 35-C33A |
Fixed-wing, single engine | Co-owned owner Ohio |
Experimental | 2025-04-30 | ValidFAA registration status code V: Valid registration. All codes |
| N7946R | Beech D55 |
Fixed-wing, multi-engine | Iron Will Trucking LLC Lancaster, Kentucky |
Standard | 2025-04-29 | ValidFAA registration status code V: Valid registration. All codes |
| N1157W | Cessna U206E |
Fixed-wing, single engine | Co-owned owner Oregon |
Standard | 2025-04-28 | ValidFAA registration status code V: Valid registration. All codes |
| N93974 | Cessna 210L |
Fixed-wing, single engine | Just Plane Stupid LLC Loveland, Colorado |
Standard | 2025-04-28 | ValidFAA registration status code V: Valid registration. All codes |
| N32HG | Pilatus P3-05 |
Fixed-wing, single engine | Glauser Aviation LLC Houston, Texas |
Experimental | 2025-04-27 | ValidFAA registration status code V: Valid registration. All codes |
| N423WT | Beech S35 |
Fixed-wing, single engine | Individual owner North Carolina |
Standard | 2025-04-26 | ValidFAA registration status code V: Valid registration. All codes |
| N1999J | Beech 95-C55 |
Fixed-wing, multi-engine | Beech Boys LLC Peachtree City, Georgia |
Standard | 2025-04-22 | ValidFAA registration status code V: Valid registration. All codes |
| N28112 | Bellanca 17-30A |
Fixed-wing, single engine | 3B Aviation LLC Tyler, Texas |
Standard | 2025-04-22 | ValidFAA registration status code V: Valid registration. All codes |
| N351AT | Beech V35 |
Fixed-wing, single engine | Withheld at owner's request | Standard | 2025-04-22 | ValidFAA registration status code V: Valid registration. All codes |
| N6641M | Beech A36 |
Fixed-wing, single engine | Individual owner New Jersey |
Standard | 2025-04-22 | ValidFAA registration status code V: Valid registration. All codes |
| N8259C | Beech F33A |
Fixed-wing, single engine | Individual owner Ohio |
Standard | 2025-04-22 | ValidFAA registration status code V: Valid registration. All codes |
| N9203Q | Beech A36 |
Fixed-wing, single engine | Davis & Automotive Services INC Carlinville, Illinois |
Standard | 2025-04-21 | ValidFAA registration status code V: Valid registration. All codes |
| N61119 | Cessna A185F |
Fixed-wing, single engine | Small Aviation No 3 LLC Villa Rica, Georgia |
Standard | 2025-04-17 | ValidFAA registration status code V: Valid registration. All codes |
| N39841 | Bellanca 17-30A |
Fixed-wing, single engine | Riggin Flight Service INC Madison, South Dakota |
Standard | 2025-04-16 | ValidFAA registration status code V: Valid registration. All codes |
| N28NT | Cessna 310R |
Fixed-wing, multi-engine | Hammock Flying Service INC Black Rock, Arkansas |
Standard | 2025-04-15 | ValidFAA registration status code V: Valid registration. All codes |
| N2909T | Aero Commander 200D |
Fixed-wing, single engine | Individual owner Minnesota |
Standard | 2025-04-15 | ValidFAA registration status code V: Valid registration. All codes |
| N2975T | Aero Commander 200D |
Fixed-wing, single engine | Individual owner Minnesota |
Standard | 2025-04-15 | ValidFAA registration status code V: Valid registration. All codes |
| N5932S | Beech 95-C55 |
Fixed-wing, multi-engine | Individual owner Montana |
Standard | 2025-04-15 | ValidFAA registration status code V: Valid registration. All codes |
| N788K | Beech V35B |
Fixed-wing, single engine | Withheld at owner's request | Standard | 2025-04-15 | ValidFAA registration status code V: Valid registration. All codes |
| N857CG | Beech A36 |
Fixed-wing, single engine | Rbf Partners LLC Chattanooga, Tennessee |
Standard | 2025-04-15 | ValidFAA registration status code V: Valid registration. All codes |
| N2340B | Beech S35 |
Fixed-wing, single engine | Individual owner Georgia |
Standard | 2025-04-14 | ValidFAA registration status code V: Valid registration. All codes |
| N7845R | Beech V35A |
Fixed-wing, single engine | Individual owner California |
Standard | 2025-04-14 | ValidFAA registration status code V: Valid registration. All codes |
| N185ML | Cessna A185F |
Fixed-wing, single engine | Co-owned owner Montana |
Standard | 2025-04-13 | ValidFAA registration status code V: Valid registration. All codes |
| N819T | Beech V35B |
Fixed-wing, single engine | 3Rd Gen Aviation LLC Lisbon, North Dakota |
Standard | 2025-04-13 | ValidFAA registration status code V: Valid registration. All codes |
| N48061 | Cessna A185E |
Fixed-wing, single engine | Co-owned owner Alaska |
Standard | 2025-04-11 | ValidFAA registration status code V: Valid registration. All codes |
| N25612 | Beech E-55 |
Fixed-wing, multi-engine | Mad Scientist Aviation LLC Wilmington, Delaware |
Standard | 2025-04-08 | ValidFAA registration status code V: Valid registration. All codes |
| N571D | Beech E-55 |
Fixed-wing, multi-engine | Individual owner Arizona |
Standard | 2025-04-08 | ValidFAA registration status code V: Valid registration. All codes |
| N70594 | Cessna U206F |
Fixed-wing, single engine | Non-Typical Airplanes LLC Malad City, Idaho |
Standard | 2025-04-08 | ValidFAA registration status code V: Valid registration. All codes |
| N459TC | Beech V35B |
Fixed-wing, single engine | N459Tc LLC Wray, Colorado |
Standard | 2025-04-07 | ValidFAA registration status code V: Valid registration. All codes |
| N103FS | Cessna 310R |
Fixed-wing, multi-engine | Individual owner West Virginia |
Standard | 2025-04-06 | ValidFAA registration status code V: Valid registration. All codes |
| N28055 | Bellanca 17-30A |
Fixed-wing, single engine | Anthony Piccione LLC Belleview, Florida |
Standard | 2025-04-05 | ValidFAA registration status code V: Valid registration. All codes |
| N3399L | Cessna A185E |
Fixed-wing, single engine | Individual owner Montana |
Standard | 2025-04-05 | ValidFAA registration status code V: Valid registration. All codes |
| N121D | Beech F33A |
Fixed-wing, single engine | Songbird Aviation LLC Larkspur, California |
Standard | 2025-04-04 | ValidFAA registration status code V: Valid registration. All codes |
| N9494N | Cessna A185F |
Fixed-wing, single engine | Maine Department of Inland Fisheries and Wildlife Augusta, Maine |
Standard | 2025-04-04 | ValidFAA registration status code V: Valid registration. All codes |
| N18748 | Beech 58 |
Fixed-wing, multi-engine | Board of Trustees of Southern Illinois Univ Carbondale, Illinois |
Standard | 2025-04-03 | ValidFAA registration status code V: Valid registration. All codes |
| N2295A | Beech V35A |
Fixed-wing, single engine | Semper Primus LLC Las Vegas, Nevada |
Standard | 2025-04-03 | ValidFAA registration status code V: Valid registration. All codes |
| N5600K | Beech S35 |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2025-04-03 | ValidFAA registration status code V: Valid registration. All codes |
| N56425 | Beech F33A |
Fixed-wing, single engine | Co-owned owner California |
Standard | 2025-04-03 | ValidFAA registration status code V: Valid registration. All codes |
| N235RD | Beech V35B |
Fixed-wing, single engine | Grady Fun Flying LLC Grady, Oklahoma |
Standard | 2025-04-02 | ValidFAA registration status code V: Valid registration. All codes |
| N616CD | Beech F33A |
Fixed-wing, single engine | Innovative Aviation LLC Filer, Idaho |
Standard | 2025-04-02 | ValidFAA registration status code V: Valid registration. All codes |
| N64VB | Beech 58 |
Fixed-wing, multi-engine | Tamworth Aviation LLC Allen, Texas |
Standard | 2025-04-02 | ValidFAA registration status code V: Valid registration. All codes |
| N61885 | Cessna A185F |
Fixed-wing, single engine | Co-owned owner Alaska |
Standard | 2025-04-01 | ValidFAA registration status code V: Valid registration. All codes |
| N7777A | Cessna U206G |
Fixed-wing, single engine | Co-owned owner Alaska |
Standard | 2025-04-01 | ValidFAA registration status code V: Valid registration. All codes |
| N77HT | Beech A36 |
Fixed-wing, single engine | Lac Aero LLC Liberal, Kansas |
Standard | 2025-04-01 | ValidFAA registration status code V: Valid registration. All codes |
| N4364Q | Cessna A185F |
Fixed-wing, single engine | Stotts Boys Aviation LLC Corcoran, Minnesota |
Standard | 2025-03-31 | ValidFAA registration status code V: Valid registration. All codes |
| N9748E | Bellanca 17-30A |
Fixed-wing, single engine | Anderson Aviation LLC Fairfield, Iowa |
Standard | 2025-03-31 | ValidFAA registration status code V: Valid registration. All codes |
| N50LW | Beech E-55 |
Fixed-wing, multi-engine | Flyer One LLC Palm Harbor, Florida |
Standard | 2025-03-30 | ValidFAA registration status code V: Valid registration. All codes |
| N2233R | Cessna A185F |
Fixed-wing, single engine | Individual owner Alaska |
Standard | 2025-03-28 | ValidFAA registration status code V: Valid registration. All codes |
| N9094Q | Beech 58 |
Fixed-wing, multi-engine | Individual owner California |
Standard | 2025-03-28 | ValidFAA registration status code V: Valid registration. All codes |
| N9565Q | Beech V35 |
Fixed-wing, single engine | Bonanza II LLC Milton, Florida |
Standard | 2025-03-28 | ValidFAA registration status code V: Valid registration. All codes |
| N2022T | Beech 58 |
Fixed-wing, multi-engine | Aero-Marine LLC Miramar Beach, Florida |
Standard | 2025-03-27 | ValidFAA registration status code V: Valid registration. All codes |
| N28097 | Bellanca 17-30A |
Fixed-wing, single engine | Individual owner Indiana |
Standard | 2025-03-27 | ValidFAA registration status code V: Valid registration. All codes |
| N374TA | Cessna 310Q |
Fixed-wing, multi-engine | Vintage Aero INC Brandon, Florida |
Standard | 2025-03-27 | ValidFAA registration status code V: Valid registration. All codes |
| N66928 | Beech A36 |
Fixed-wing, single engine | International Air Services INC Trustee Carson City, Nevada |
Standard | 2025-03-27 | ValidFAA registration status code V: Valid registration. All codes |
| N979DM | Beech E-55 |
Fixed-wing, multi-engine | Individual owner South Carolina |
Standard | 2025-03-27 | ValidFAA registration status code V: Valid registration. All codes |
| N4801J | Beech 95-C55 |
Fixed-wing, multi-engine | Mcd55 LLC Lavon, Texas |
Standard | 2025-03-26 | ValidFAA registration status code V: Valid registration. All codes |
| N6049F | Beech S35 |
Fixed-wing, single engine | Brown Boot Aviation LLC Chesapeake, Virginia |
Standard | 2025-03-26 | ValidFAA registration status code V: Valid registration. All codes |
| N761UE | Cessna 210M |
Fixed-wing, single engine | Individual owner Indiana |
Standard | 2025-03-26 | ValidFAA registration status code V: Valid registration. All codes |
| N118ED | Beech E-55 |
Fixed-wing, multi-engine | South America Tactical & Airborne Cousulting CORP Wilmington, Delaware |
Standard | 2025-03-25 | ValidFAA registration status code V: Valid registration. All codes |
| N122F | Cessna 210H |
Fixed-wing, single engine | Siver Creek Capital LLC Emery, South Dakota |
Standard | 2025-03-25 | ValidFAA registration status code V: Valid registration. All codes |
| N1906F | Cessna P206E |
Fixed-wing, single engine | P206-1 LLC Carrollton, Georgia |
Standard | 2025-03-25 | ValidFAA registration status code V: Valid registration. All codes |
| N246TA | Bellanca 17-30A |
Fixed-wing, single engine | Co-owned owner Arizona |
Standard | 2025-03-25 | ValidFAA registration status code V: Valid registration. All codes |
| N28058 | Bellanca 17-30A |
Fixed-wing, single engine | Co-owned owner Missouri |
Standard | 2025-03-24 | ValidFAA registration status code V: Valid registration. All codes |
| N3853Y | Cessna 210D |
Fixed-wing, single engine | Rafter Bar B LLC Ashland City, Tennessee |
Standard | 2025-03-24 | ValidFAA registration status code V: Valid registration. All codes |
| N5720K | Beech S35 |
Fixed-wing, single engine | Individual owner Kansas |
Standard | 2025-03-24 | ValidFAA registration status code V: Valid registration. All codes |
| N9266Q | Beech E-55 |
Fixed-wing, multi-engine | Individual owner Massachusetts |
Standard | 2025-03-24 | 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.