SA01540WI
Installation of hydraulically operated hopper loading door and associated control system (ground use only). Held by Texas Transland LLC, which holds 26 approved modifications in all. Last revised February 1, 2024. System: airframe structure.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.
- Models
- S2R-G10, S2R-G6, S2R-T34, S2R-T45, S2R-T660
- Type certificates
- A4SW, A4SW, A4SW, A4SW, A4SW
- On this site
- 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 20, 2026.