SA3093SW-D
Mitchell automatic flight system AK577 consisting of Century I auto-pilot with optional omni tracker. Held by Mitchell Industries, INC, which holds 31 approved modifications in all. Last revised December 30, 1975. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The New Piper Aircraft Inc.; The New Piper Aircraft Inc.
- Models
- PA-28R-180, PA-28R-200
- Type certificates
- 2A13, 2A13
- On this site
- Piper PA-28 Cherokee, Warrior, Archer and Arrow 18,636 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.