SA777SW
Installation of ALCOR Model 250 turbosupercharger. Serial Number 1850032 only. Held by Alcor LLC, which holds 13 approved modifications in all. Last revised May 27, 2025. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Textron Aviation Inc.
- Models
- 185
- Type certificate
- 3A24
- 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 5, 2026.