SA1773SO
Installation of a third stand-by attitude gyro and dedicated power supply AIM P/N PE 24-1RM. Held by Summit Aviation INC, which holds 23 approved modifications in all. Last revised July 14, 2023. System: instruments and avionics.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.
- Models
- 500, 550, S550
- Type certificates
- A22CE, A22CE, A22CE
- On this site
- Cessna S550 94 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 5, 2026.