SE4570SW
Revise accessory drive spline, P/N 3008181. Held by Aviall of Texas, INC, which holds 6 approved modifications in all. Last revised February 4, 1982. System: engine.
What it applies to
- Kind of product
- Engine
- Design holder
- Pratt & Whitney Canada Inc.; Pratt & Whitney Canada Inc.; Pratt & Whitney Canada Inc.; Pratt & Whitney Canada Inc.; Pratt & Whitney Canada Inc.; Pratt & Whitney Canada Inc.; Pratt & Whitney Canada Inc.; Pratt & Whitney Canada Inc.; Pratt & Whitney Canada Inc.; Pratt & Whitney Canada Inc.; Pratt & Whitney Canada Inc.; Pratt & Whitney Canada Inc.
- Models
- PT6A-38, PT6A-34, PT6A-27, PT6A-41, PT6A-25, PT6A-42, PT6A-135, PT6A-36, PT6A-28, PT6A-20, PT6A-6, PT6A-21
- Type certificates
- E4EA, E4EA, E4EA, E4EA, E4EA, E4EA, E4EA, E4EA, E4EA, E4EA, E4EA, E4EA
- 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 5, 2026.