SA3106SW-D
Installation of Mitchell Automatic Flight System Model AK544 consisting of a Century III Autopilot with Optional Radio Coupler and Glide Slope Coupler. Held by Century Flight Systems INC, which holds 765 approved modifications in all. Last revised May 24, 1984. System: flight controls.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Beechcraft Corporation; Beechcraft Corporation
- Models
- B24R, C24R
- Type certificates
- A1CE, A1CE
- On this site
- Beechcraft B24 117 registered
Beechcraft C24 176 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.