SA1555CE-D
Installation of King Model KAS 297 altitude selector option in airplanes equipped with KFC 200 Flight Control System with Flight Director. Held by Honeywell International INC, which holds 599 approved modifications in all. Last revised March 25, 2020. System: flight controls.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.
- Models
- 310P, 310Q, 310R, T310P, T310Q, T310R
- Type certificates
- 3A10, 3A10, 3A10, 3A10, 3A10, 3A10
- On this site
- Cessna T-310 207 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 20, 2026.