SA1734SO
Installation of new design tail wheel. Held by Abi LLC, which holds 4 approved modifications in all. Last revised April 15, 2026. System: landing gear.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Thrush Aircraft LLC; Thrush Aircraft LLC; Thrush Aircraft LLC; Thrush Aircraft LLC; Thrush Aircraft LLC; Thrush Aircraft LLC; Thrush Aircraft LLC; Thrush Aircraft LLC; Thrush Aircraft LLC; Thrush Aircraft LLC; Thrush Aircraft LLC
- Models
- S2RHG-T34, S2R-T65, S2R-H80, S2RHG-T65, S2R-T11, S2R-R3S, S2R-T15, S2R, S2R-R1820, S2R-T34, S2R-R1340
- Type certificates
- A4SW, A4SW, A4SW, A4SW, A4SW, A4SW, A4SW, A4SW, A4SW, A4SW, A4SW
- On this site
- Ayres Corporation S-2 244 registered
Thrush Aircraft Inc S-2 102 registered
Thrush Aircraft Llc S2 55 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 7, 2026.