SA04398AT
Installation of a Manual Dump Gate Box. Held by Texas Transland LLC, which holds 26 approved modifications in all. Last revised August 28, 2017. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Air Tractor, Inc.; Air Tractor, Inc.; Thrush Aircraft, Inc.; Thrush Aircraft, Inc.; Thrush Aircraft, Inc.
- Models
- AT-602, AT-802A, S2R-G10, S2R-H80, S2R-T34
- Type certificates
- A19SW, A19SW, A19SW, A19SW, A19SW
- On this site
- Air Tractor Inc AT-602 245 registered
Air Tractor Inc AT-802 686 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.