Pratt & Whitney Canada PW121
14 aircraft on the U.S. register carry a Pratt & Whitney Canada PW121 engine, rated at about 1950 horsepower. The Dehavilland DHC-8 is the model most often fitted with it (5 aircraft). The aircraft carrying it were built between 1988 and 1997.
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 Pratt & Whitney Canada PW121. FAA spelling: PW121.
Fitted to model families
Dehavilland DHC-8 · Aerospatiale/Aeritalia ATR 42 · Aerospatiale/Alenia ATR 42-320 · Boeing Of Canada/Dehav Div DHC-8 · Atr-Gie Avions De Trnsp Rgnl ATR 42-300
Where they are owner's state
Kind of aircraft
When the aircraft were built by decade
What the FAA has certified, ordered and been told about the Pratt & Whitney Canada PW121 the component layer
No FAA order in the current files names this engine series. Operators and repair shops have filed 444 failure reports with the FAA since 1995, 159 of them in the last ten years.
Failure reports 444 since · what operators and shops told the FAA
Parts most often reported as the reports name them
Latest reports
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
- Dehavilland DHC-8 5 with this engine series
- Aerospatiale/Aeritalia ATR 42 4 with this engine series
- Boeing Of Canada/Dehav Div DHC-8 2 with this engine series
- Federal Express CORP 4 of these aircraft
- Big Horn Airways INC 3 of these aircraft
- Tvpx Ars INC Trustee 2 of these aircraft
- Southwest Aviation Enterprises 1 of these aircraft
- Northrop Grumman Systems CORP 1 of these aircraft
- Failure reports on the Pratt & Whitney Canada PW121 444 reports since 1995
These connections as data: /graph/engine/pratt-whitney-canada-pw121.json · about the eFlight graph.
Aircraft newest certificates first · 14
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N884EA | Dehavilland DHC-8-106 |
Fixed-wing, multi-engine | Tvpx Ars INC Trustee North Salt Lake, Utah |
Standard | 2026-03-02 | ValidFAA registration status code V: Valid registration. All codes |
| N891EA | Dehavilland DHC-8-106 |
Fixed-wing, multi-engine | Tvpx Ars INC Trustee North Salt Lake, Utah |
Standard | 2026-03-02 | ValidFAA registration status code V: Valid registration. All codes |
| N597SB | Atr-Gie Avions De Trnsp Rgnl ATR 42-300 |
Fixed-wing, multi-engine | International Air Services INC Trustee Carson City, Nevada |
Standard | 2025-04-30 | ValidFAA registration status code V: Valid registration. All codes |
| N798CR | Aerospatiale/Alenia ATR 42-320 |
Fixed-wing, multi-engine | Southwest Aviation Enterprises Haslet, Texas |
Standard | 2025-03-05 | ValidFAA registration status code V: Valid registration. All codes |
| N992BH | Boeing Of Canada/Dehav Div DHC-8-106 |
Fixed-wing, multi-engine | Big Horn Airways INC Sheridan, Wyoming |
Multiple | 2021-09-21 | ValidFAA registration status code V: Valid registration. All codes |
| N991BH | Dehavilland DHC-8-106 |
Fixed-wing, multi-engine | Big Horn Airways INC Sheridan, Wyoming |
Multiple | 2021-09-02 | ValidFAA registration status code V: Valid registration. All codes |
| N990AV | Dehavilland DHC-8-103 |
Fixed-wing, multi-engine | Bank of Utah Trustee Salt Lake City, Utah |
Standard | 2020-11-02 | ValidFAA registration status code V: Valid registration. All codes |
| N228DG | Aerospatiale/Alenia ATR 42-320 |
Fixed-wing, multi-engine | Konair US LLC Miami, Florida |
Standard | 2020-02-21 | ValidFAA registration status code V: Valid registration. All codes |
| N990BH | Boeing Of Canada/Dehav Div DHC-8-106 |
Fixed-wing, multi-engine | Big Horn Airways INC Sheridan, Wyoming |
Standard | 2018-11-03 | ValidFAA registration status code V: Valid registration. All codes |
| N984HA | Dehavilland DHC-8-106 |
Fixed-wing, multi-engine | Northrop Grumman Systems CORP El Segundo, California |
Experimental | 2012-01-05 | ValidFAA registration status code V: Valid registration. All codes |
| N903FX | Aerospatiale/Aeritalia ATR 42-320 |
Fixed-wing, multi-engine | Federal Express CORP Memphis, Tennessee |
Standard | 2003-03-27 | ValidFAA registration status code V: Valid registration. All codes |
| N907FX | Aerospatiale/Aeritalia ATR 42-320 |
Fixed-wing, multi-engine | Federal Express CORP Memphis, Tennessee |
Standard | 2003-03-24 | ValidFAA registration status code V: Valid registration. All codes |
| N901FX | Aerospatiale/Aeritalia ATR 42-320 |
Fixed-wing, multi-engine | Federal Express CORP Memphis, Tennessee |
Standard | 2003-02-20 | ValidFAA registration status code V: Valid registration. All codes |
| N906FX | Aerospatiale/Aeritalia ATR 42-320 |
Fixed-wing, multi-engine | Federal Express CORP Memphis, Tennessee |
Standard | 2003-02-06 | 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.