SA2309NY
Install Pratt & Whitney, Canada (P&WC) PT6A-135A engines (modified with a dual line start fuel system ) in place of PT6A-135 engine. Held by Standard Aero INC, which holds 8 approved modifications in all. Last revised November 1, 2006. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Piper Aircraft Inc.
- Models
- PA-31T2
- Type certificate
- A8EA
- On this site
- Piper PA-31 Navajo and Chieftain 935 registered
- The FAA's record
- On the FAA's site
What an approved modification is
A supplemental type certificate is the FAA's approval of a change to a certified design: a new engine or propeller, avionics, an autopilot, floats, a parachute, a larger fuel tank, an ice-protection kit. The company holding it may sell the kit and the paperwork to owners of the listed models; the modification then becomes part of that aircraft's record. The FAA's list says what was approved and for which models, not how many aircraft carry it.
Source: FAA supplemental type certificates (Dynamic Regulatory System). Register counts from the FAA register of October 20, 2026.