Pratt & Whitney Canada PT6A-25
4 aircraft on the U.S. register carry a Pratt & Whitney Canada PT6A-25 engine, rated at about 550 horsepower. The Beechcraft T-34 is the model most often fitted with it (2 aircraft). The aircraft carrying it were built between 1978 and 1984.
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 PT6A-25 (2 codes). FAA spellings: PT6A-25 · PT6A-25.
Fitted to model families
Beechcraft T-34 · Beechcraft C-99 · Ndn Aircraft Ltd NDN-1T FIRECRACKER
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 PT6A-25 the component layer
The design is held under 1 type certificate (E4EA, held by Pratt & Whitney Canada CORP.). The FAA has issued 4 airworthiness directives (orders that owners must comply with) that name this engine series.
FAA orders 4 airworthiness directives · newest first
Certificates and bulletins
Safety bulletins 1 · 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 T-34 2 with this engine series
- Beechcraft C-99 1 with this engine series
- California 2 of these aircraft
- Washington 1 of these aircraft
- Minnesota 1 of these aircraft
- National Test Pilot School 2 of these aircraft
- Tumbleweed Leasing LLC 1 of these aircraft
- Bemidji Aviation Services INC 1 of these aircraft
- FAA orders naming the Pratt & Whitney Canada PT6A-25 4 airworthiness directives
These connections as data: /graph/engine/pratt-whitney-canada-pt6a-25.json · about the eFlight graph.
Aircraft newest certificates first · 4
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N4872M | Beech T-34C-1 |
Fixed-wing, single engine | Tumbleweed Leasing LLC Tacoma, Washington |
Standard | 2026-04-23 | ValidFAA registration status code V: Valid registration. All codes |
| N2157C | Ndn Aircraft Ltd NDN-1T FIRECRACKER |
Fixed-wing, single engine | National Test Pilot School Mojave, California |
Experimental | 2023-05-25 | ValidFAA registration status code V: Valid registration. All codes |
| N87GR | Beech T-34C-1 |
Fixed-wing, single engine | National Test Pilot School Mojave, California |
Standard | 2023-05-25 | ValidFAA registration status code V: Valid registration. All codes |
| N172EE | Beech C-99 |
Fixed-wing, multi-engine | Bemidji Aviation Services INC Bemidji, Minnesota |
Standard | 2004-09-21 | 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.