Continental IO-520-K
8 aircraft on the U.S. register carry a Continental IO-520-K engine, rated at about 300 horsepower. The Bellanca 17 Viking is the model most often fitted with it (8 aircraft). The aircraft carrying it were built between 1970 and 1976.
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-K. FAA spelling: IO-520-K.
Fuel: 100LL avgas.
Fitted to model families
Model families, as a table
| aircraft | |
|---|---|
| Bellanca 17 Viking | 8 |
Where they are owner's state
What the FAA has certified, ordered and been told about the Continental IO-520-K the component layer
The design is held under 1 type certificate (E5CE, held by Continental Aerospace Technologies, INC.). The FAA has issued 31 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 14 failure reports with the FAA since 1995, 5 of them in the last ten years.
FAA orders 31 airworthiness directives · newest first
Failure reports 14 since · what operators and shops told the FAA
Failure reports by year, as a table
| reports | |
|---|---|
| 97 | 1 |
| 98 | 2 |
| 99 | 1 |
| 00 | 4 |
| 04 | 1 |
| 06 | 1 |
| 07 | 1 |
| 10 | 1 |
| 15 | 2 |
Parts most often reported as the reports name them
Parts most reported, as a table
| reports | |
|---|---|
| Guide | 2 |
| Chain | 1 |
| Crankshaft | 1 |
| Cylinder | 1 |
| Cylinder Head | 1 |
| Exhaust Valve | 1 |
| Leg Assy | 1 |
| Magneto | 1 |
| Rod End | 1 |
| Shuttle Valve | 1 |
Latest reports
Approved replacement parts 39 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: magneto (10), harness (8), engine oil (7), valve cover (3), stud (3), cover (2), tach breaker (1), ring (1), gear (1), clamp (1).
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
- Bellanca 17 Viking 8 with this engine series
- Pennsylvania 1 of these aircraft
- Oklahoma 1 of these aircraft
- Maryland 1 of these aircraft
- Louisiana 1 of these aircraft
- Georgia 1 of these aircraft
- FAA orders naming the Continental IO-520-K 31 airworthiness directives
- Failure reports on the Continental IO-520-K 14 reports since 1995
The whole map of how records connect · these connections as data: /graph/engine/continental-io-520-k.json.
Aircraft newest certificates first · 8
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N868CT | Bellanca 17-30A |
Fixed-wing, single engine | Co-owned owner Colorado |
Standard | 2025-05-07 | ValidFAA registration status code V: Valid registration. All codes |
| N9606E | Bellanca 17-30A |
Fixed-wing, single engine | Neighborhood Helping Hands LLC Mesa, Arizona |
Standard | 2024-09-19 | ValidFAA registration status code V: Valid registration. All codes |
| N376CW | Bellanca 17-30A |
Fixed-wing, single engine | Weavers Enterprises LLC Annville, Pennsylvania |
Standard | 2022-12-09 | ValidFAA registration status code V: Valid registration. All codes |
| N14764 | Bellanca 17-30A |
Fixed-wing, single engine | Bl14764 LLC Homer, Louisiana |
Standard | 2022-03-10 | ValidFAA registration status code V: Valid registration. All codes |
| N575JH | Bellanca 17-30A |
Fixed-wing, single engine | Co-owned owner Oklahoma |
Standard | 2018-01-18 | ValidFAA registration status code V: Valid registration. All codes |
| N14732 | Bellanca 17-30A |
Fixed-wing, single engine | Individual owner Georgia |
Standard | 2017-05-19 | ValidFAA registration status code V: Valid registration. All codes |
| N9521E | Bellanca 17-30A |
Fixed-wing, single engine | Individual owner Maryland |
Standard | 2016-08-04 | ValidFAA registration status code V: Valid registration. All codes |
| N6601V | Bellanca 17-30A |
Fixed-wing, single engine | Jofredo CORP Zephyrhills, Florida |
Standard | 2011-07-28 | 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 10, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.