SA3080SW-D
Mitchell automatic flight system AK551 consisting of Century I autopilot with optional omni tracker. Held by Century Flight Systems INC, which holds 765 approved modifications in all. Last revised June 19, 1984. System: flight controls.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Aermacchi S.p.A.; Aermacchi S.p.A.; Aermacchi S.p.A.
- Models
- S.205-20/R, S.205-22/R, S.205-18/R
- Type certificates
- A9EU, A9EU, A9EU
- On this site
- Siai-Marchetti S.205/22R 22 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.