SA3048SWD
Mitchell automatic flight system AK476 consisting of Century IIB autopilot with optional radio coupler. Held by Century Flight Systems INC, which holds 765 approved modifications in all. Last revised August 16, 1984. System: flight controls.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Mooney Aircraft Corporation; Mooney Aircraft Corporation; Mooney Aircraft Corporation; Mooney Aircraft Corporation; Mooney Aircraft Corporation
- Models
- M20J, M20F, M20E, M20D, M20C
- Type certificates
- 2A3, 2A3, 2A3, 2A3, 2A3
- On this site
- Mooney M-20 6,247 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 19, 2026.