SA1073SO
Installation of a 500 gallon hopper vent blister kit. (S2R-T34 NORMAL CATEGORY, S2R-T15 RESTRICTED CATEGORY). Held by Texas Transland LLC, which holds 26 approved modifications in all. Last revised March 19, 2025. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Thrush Aircraft LLC; Thrush Aircraft LLC; Thrush Aircraft LLC; Thrush Aircraft LLC
- Models
- S2R-T34, S2R-T15, S2R-T15, S2R-T34
- Type certificates
- A4SW, A4SW, A3SW, A3SW
- On this site
- Ayres Corporation S-2 244 registered
Thrush Aircraft Llc S2 52 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.