SA02632SE
Installation of a Pratt and Whitney PT6A-35 engine flat rated to existing horsepower of the original Pratt and Whitney PT6A-28 and associated instrument marking changes. Held by Teufel Nursery INC, which holds 4 approved modifications in all. Last revised December 12, 2018. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Atlantic Coast Seaplanes LLC
- Models
- G-21G
- Type certificate
- 4A24
- 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.