- Holder
- Pratt & Whitney Division
- Revision
- 0
- Revised
- April 15, 1975
- Status
- Current
- Product
- Engine
- Certification basis
- Part 1, Part 3, Part 33
- Models
- 4
The release keeps the latest revision of each data sheet. Model names are as the data sheet lists them.
On this page
Models · 4
| Model | Also known as | Note |
|---|---|---|
| PT6A-34 | Formerly United Aircraft Corp. | |
| PT6A-27 | Formerly United Aircraft Corp. | |
| PT6A-28 | Formerly United Aircraft Corp. | |
| PT6A-20A | Formerly United Aircraft Corp. |
Airworthiness directives · 0
ADs whose products are models on this data sheet, matched by model and maker.
No ADs matched this data sheet’s models
STCs approved under this data sheet · 6
STC SE02688NYThis modification would incorporate improved compressor components into the Pratt & Whitney PT6A-28 engine from the PT6A-135A engine.STC SE02273NYConversion of a Pratt & Whitney Canada PT6A-27 or PT6A-28 engine to operate as a PT6A-34 engine.STC SE539NEModification of compressor turbine sealing segments to incorporate honeycomb material on the inside diameter thereby providing an abradable surface for turbine blade contact.STC SE1269EAStripping and recoating of compressor turbine blades, P/N 3023401, with Walbar Metals, Inc.STC SE5601SWReplacement splined end and oil mist lubrication on accessory drive gearshaft.STC SE1165EAAssembly and installation of AW10262 wet spline starter gear seal.