SA5590SW
Frakes engine cowling, air inlet and filtration system and engine bleed air cockpit heater. Held by Turbine Conversions LTD, which holds 33 approved modifications in all. Last revised May 10, 2011. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Ayres Corporation; Ayres Corporation
- Models
- S2R-T34, S2R-T34
- Type certificates
- A3SW, A4SW
- On this site
- Ayres Corporation S-2 244 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.