SA02752AT
Installation of the E-Tec ET-107 System that uses a sequential 24V to 48V Fast Start in order to reduce turbine exhaust gas temperatures (EGT) during engine starts. Held by Air Repair INC, which holds 15 approved modifications in all. Last revised May 4, 2012. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Air Tractor Inc.; Air Tractor Inc.; Air Tractor Inc.; Air Tractor Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.
- Models
- AT-402, AT-502, AT-602, AT-802, S2R-G1, S2R-G10, S2R-G6, S2R-T11, S2R-T15, S2R-T34, S2R-T45, S2R-T65, S2R-T660
- Type certificates
- A17SW, A17SW, A19SW, A19SW, A4SW, A4SW, A4SW, A4SW, A4SW, A4SW, A4SW, A4SW, A4SW
- On this site
- Air Tractor Inc AT-402 160 registered
Air Tractor Inc AT-502 501 registered
Air Tractor Inc AT-602 245 registered
Air Tractor Inc AT-802 686 registered
Ayres Corporation S-2 244 registered
Thrush Aircraft Inc S-2 102 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 21, 2026.