Continental IO-520-B
16 aircraft on the U.S. register carry a Continental IO-520-B engine, rated at about 285 horsepower. The Beechcraft A36 Bonanza is the model most often fitted with it (3 aircraft). The aircraft carrying it were built between 1965 and 2007.
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-B. FAA spelling: IO-520-B.
Fuel: 100LL avgas.
Fitted to model families
Model families, as a table
Beechcraft A36 Bonanza · Beechcraft V35 Bonanza · Navion NAVION G · Beechcraft 35 Bonanza and Debonair · Beechcraft 36 Bonanza · Beechcraft 95 Travel Air and Baron 55 · Beechcraft E33 · Beechcraft F33 Bonanza · Beechcraft S35 Bonanza · Beechcraft G36 Bonanza
Where they are owner's state
Kind of aircraft
By kind, as a table
| aircraft | share | |
|---|---|---|
| Piston singles | 15 | 94% |
| Piston twins | 1 | 6% |
What the FAA has certified, ordered and been told about the Continental IO-520-B the component layer
The design is held under 1 type certificate (E5CE, held by Continental Aerospace Technologies, INC.). The FAA has issued 34 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 76 failure reports with the FAA since 1995, 5 of them in the last ten years.
FAA orders 34 airworthiness directives · newest first
Failure reports 76 since · what operators and shops told the FAA
Failure reports by year, as a table
| reports | |
|---|---|
| 95 | 1 |
| 96 | 6 |
| 97 | 7 |
| 98 | 4 |
| 99 | 8 |
| 00 | 9 |
| 01 | 18 |
| 02 | 5 |
| 03 | 7 |
| 04 | 2 |
| 05 | 2 |
| 06 | 2 |
| 07 | 1 |
| 11 | 1 |
| 12 | 1 |
| 13 | 1 |
| 16 | 1 |
Parts most often reported as the reports name them
Parts most reported, as a table
| reports | |
|---|---|
| Distributor Blk | 13 |
| Cylinder | 5 |
| Crankcase | 4 |
| Spar | 4 |
| Alternator | 3 |
| Bracket | 3 |
| Bolt | 2 |
| Control Cable | 2 |
| Distributor | 2 |
| Fitting | 2 |
Latest reports
Approved replacement parts 332 parts manufacturer approvals
Parts a company other than the maker may make for this engine and sell as FAA-approved. The companies holding the most:
Most often: stud (76), ignition harness (27), bearing (21), alternator (21), installation of (18), magneto (15), gear (14), gasket (13), bolt (10), harness (9).
Certificates and bulletins
Safety bulletins 10 · advice, not orders
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
- Beechcraft A36 Bonanza 3 with this engine series
- Beechcraft V35 Bonanza 3 with this engine series
- Navion NAVION G 2 with this engine series
- Beechcraft 35 Bonanza and Debonair 1 with this engine series
- Beechcraft 36 Bonanza 1 with this engine series
- Beechcraft 95 Travel Air and Baron 55 1 with this engine series
- Beechcraft E33 1 with this engine series
- Beechcraft F33 Bonanza 1 with this engine series
- Texas 3 of these aircraft
- California 3 of these aircraft
- Virginia 2 of these aircraft
- Tennessee 2 of these aircraft
- Wyoming 1 of these aircraft
- L A M Capital Management LLC 1 of these aircraft
- FAA orders naming the Continental IO-520-B 34 airworthiness directives
- Failure reports on the Continental IO-520-B 76 reports since 1995
The whole map of how records connect · these connections as data: /graph/engine/continental-io-520-b.json.
Aircraft newest certificates first · 16
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N167TF | Beech V35 |
Fixed-wing, single engine | Co-owned owner Tennessee |
Standard | 2025-10-14 | ValidFAA registration status code V: Valid registration. All codes |
| N336NA | Beech A36 |
Fixed-wing, single engine | Individual owner California |
Standard | 2025-09-26 | ValidFAA registration status code V: Valid registration. All codes |
| N8921U | Beech S35 |
Fixed-wing, single engine | Individual owner California |
Standard | 2025-02-06 | ValidFAA registration status code V: Valid registration. All codes |
| N2521T | Navion NAVION H |
Fixed-wing, single engine | Individual owner Virginia |
Standard | 2024-07-09 | ValidFAA registration status code V: Valid registration. All codes |
| N843CM | Beech A36 |
Fixed-wing, single engine | Lamar Lending LLC League City, Texas |
Standard | 2023-08-24 | ValidFAA registration status code V: Valid registration. All codes |
| N7610N | Beech 95-B55 (T42A) |
Fixed-wing, multi-engine | Individual owner Tennessee |
Standard | 2023-07-18 | ValidFAA registration status code V: Valid registration. All codes |
| N2433T | Navion NAVION G |
Fixed-wing, single engine | NW Aircraft Sales & Lesing LLC Scappoose, Oregon |
Standard | 2023-06-22 | ValidFAA registration status code V: Valid registration. All codes |
| N2497T | Navion NAVION G |
Fixed-wing, single engine | Individual owner Virginia |
Standard | 2023-02-16 | ValidFAA registration status code V: Valid registration. All codes |
| N2054W | Beech V35 |
Fixed-wing, single engine | Individual owner Michigan |
Standard | 2023-01-05 | ValidFAA registration status code V: Valid registration. All codes |
| N6655G | Beech 36 |
Fixed-wing, single engine | Right Wing Left Wing Flyers LLC Cleveland, Georgia |
Standard | 2022-08-04 | ValidFAA registration status code V: Valid registration. All codes |
| N858AL | Beech A36 |
Fixed-wing, single engine | Individual owner California |
Standard | 2021-11-27 | ValidFAA registration status code V: Valid registration. All codes |
| N1259M | Beech 35-C33A |
Fixed-wing, single engine | L A M Capital Management LLC Sheridan, Wyoming |
Standard | 2019-06-21 | ValidFAA registration status code V: Valid registration. All codes |
| N10CA | Hawker Beechcraft Corp G36 |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2018-10-26 | ValidFAA registration status code V: Valid registration. All codes |
| N277F | Beech E33C |
Fixed-wing, single engine | Co-owned owner Texas |
Standard | 2017-02-14 | ValidFAA registration status code V: Valid registration. All codes |
| N95WD | Beech F33A |
Fixed-wing, single engine | Individual owner South Carolina |
Standard | 2016-12-28 | ValidFAA registration status code V: Valid registration. All codes |
| N4856J | Beech V35 |
Fixed-wing, single engine | N4856J LLC Boulder, Colorado |
Standard | 2015-09-02 | 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), November 9, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.