Allison (Rolls-Royce) 250-C20R/2
8 aircraft on the U.S. register carry an Allison (Rolls-Royce) 250-C20R/2 engine, rated at about 450 horsepower. The Mcdonnell Douglas Helicopter 369 is the model most often fitted with it (4 aircraft). The aircraft carrying it were built between 1977 and 1998.
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 Allison (Rolls-Royce) 250-C20R/2. FAA spelling: 250-C20R/2.
Fitted to model families
Model families, as a table
| aircraft | |
|---|---|
| Mcdonnell Douglas Helicopter 369 | 4 |
| Mcdonnell Douglas Helicopter 500 | 2 |
| Bell 206 JetRanger and LongRanger | 1 |
| Hughes Helicopters Inc HUGHES 369 | 1 |
Mcdonnell Douglas Helicopter 369 · Mcdonnell Douglas Helicopter 500 · Bell 206 JetRanger and LongRanger · Hughes Helicopters Inc HUGHES 369
Where they are owner's state
What the FAA has certified, ordered and been told about the Allison (Rolls-Royce) 250-C20R/2 the component layer
No FAA order in the current files names this engine series. Operators and repair shops have filed 66 failure reports with the FAA since 1995, 8 of them in the last ten years.
Failure reports 66 since · what operators and shops told the FAA
Failure reports by year, as a table
| reports | |
|---|---|
| 96 | 11 |
| 97 | 4 |
| 98 | 1 |
| 99 | 2 |
| 00 | 3 |
| 01 | 5 |
| 02 | 1 |
| 03 | 9 |
| 04 | 8 |
| 05 | 3 |
| 06 | 2 |
| 07 | 3 |
| 08 | 4 |
| 09 | 2 |
| 11 | 2 |
| 12 | 1 |
| 13 | 1 |
| 14 | 2 |
| 16 | 1 |
| 19 | 1 |
Parts most often reported as the reports name them
Parts most reported, as a table
| reports | |
|---|---|
| Bearing | 6 |
| Turbine | 6 |
| Nozzle | 5 |
| Blade | 3 |
| Governor | 3 |
| Case | 2 |
| Compressor | 2 |
| Fitting | 2 |
| Actuator | 1 |
| Arm | 1 |
Latest reports
Approved replacement parts 10 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: piston (1), nozzle (1), mfp (1), hydro mechanical (1), hpf (1), hp fuel (1), gasket (1), fuel pump (1), filter pump (1), bearing (1).
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
- Mcdonnell Douglas Helicopter 369 4 with this engine series
- Mcdonnell Douglas Helicopter 500 2 with this engine series
- Bell 206 JetRanger and LongRanger 1 with this engine series
- Hughes Helicopters Inc HUGHES 369 1 with this engine series
- Mid Pacific Aero Services LLC 1 of these aircraft
- Failure reports on the Allison (Rolls-Royce) 250-C20R/2 66 reports since 1995
The whole map of how records connect · these connections as data: /graph/engine/allison-rolls-royce-250-c20r-2.json.
Aircraft newest certificates first · 8
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N12EW | Bell 206L |
Rotorcraft | Jetcopters LLC Lewes, Delaware |
Standard | 2026-04-10 | ValidFAA registration status code V: Valid registration. All codes |
| N500BH | Mcdonnell Douglas Helicopter 369E |
Rotorcraft | Aircraft Guaranty CORP Trustee Oklahoma City, Oklahoma |
Standard | 2024-08-09 | ValidFAA registration status code V: Valid registration. All codes |
| N926DD | Mcdonnell Douglas Helicopter 369E |
Rotorcraft | Turbine Flying Penguins LLC Gardnerville, Nevada |
Standard | 2024-01-19 | ValidFAA registration status code V: Valid registration. All codes |
| N369FC | Hughes Helicopters Inc HUGHES 369D |
Rotorcraft | Ferguson and Sons Construction LLC Emmett, Idaho |
Experimental | 2022-10-15 | ValidFAA registration status code V: Valid registration. All codes |
| N915LY | Mcdonnell Douglas Helicopter 369E |
Rotorcraft | Lyons Aircraft Leasing LLC Hillsboro, Oregon |
Standard | 2022-10-11 | ValidFAA registration status code V: Valid registration. All codes |
| N510PJ | Mcdonnell Douglas Helicopter 500N |
Rotorcraft | Mid Pacific Aero Services LLC Honolulu, Hawaii |
Standard | 2020-07-31 | ValidFAA registration status code V: Valid registration. All codes |
| N311VT | Mcdonnell Douglas Helicopter 369E |
Rotorcraft | Geco INC Wilmington, Delaware |
Standard | 2020-02-20 | ValidFAA registration status code V: Valid registration. All codes |
| N520MG | Mcdonnell Douglas Helicopter 500N |
Rotorcraft | Hagedorn Aviation Columbus, Ohio |
Standard | 2007-12-13 | 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 9, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.