Pratt & Whitney Canada PT6T-6
5 aircraft on the U.S. register carry a Pratt & Whitney Canada PT6T-6 engine, rated at about 925 horsepower. The Sikorsky S-58 is the model most often fitted with it (5 aircraft). The aircraft carrying it were built between 1956 and 1962.
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 PT6T-6. FAA spelling: PT6T-6.
Fitted to model families
Model families, as a table
| aircraft | |
|---|---|
| Sikorsky S-58 | 5 |
Where they are owner's state
What the FAA has certified, ordered and been told about the Pratt & Whitney Canada PT6T-6 the component layer
The design is held under 1 type certificate (E22EA, held by Pratt & Whitney Canada CORP.). The FAA has issued 3 airworthiness directives (orders that owners must comply with) that name this engine series.
FAA orders 3 airworthiness directives · newest first
Certificates and bulletins
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
- Sikorsky S-58 5 with this engine series
- Texas 2 of these aircraft
- California 2 of these aircraft
- Kansas 1 of these aircraft
- FAA orders naming the Pratt & Whitney Canada PT6T-6 3 airworthiness directives
The whole map of how records connect · these connections as data: /graph/engine/pratt-whitney-canada-pt6t-6.json.
Aircraft newest certificates first · 5
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N129NH | Sikorsky S-58JT |
Rotorcraft | Sh1P Holdings LLC Wichita, Kansas |
Standard | 2026-05-23 | ValidFAA registration status code V: Valid registration. All codes |
| N1168U | Sikorsky S-58ET |
Rotorcraft | Heli-Flite INC Corona, California |
Standard | 2021-05-20 | ValidFAA registration status code V: Valid registration. All codes |
| N58AH | Sikorsky S-58ET |
Rotorcraft | B&B Helos LLC Perris, California |
Standard | 2012-05-01 | ValidFAA registration status code V: Valid registration. All codes |
| N4XY | Sikorsky S-58BT |
Rotorcraft | 5-State Helicopters INC Royse City, Texas |
Standard | 2004-04-16 | ValidFAA registration status code V: Valid registration. All codes |
| N6BL | Sikorsky S-58ET |
Rotorcraft | 5 State Helicopters INC Royse City, Texas |
Standard | 1998-07-07 | 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 8, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.