# STC SA3305SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Mitchell automatic flight system AK775 consisting of Piper altimatic IIIC autopilot with optional radio and glide slope couplers.
- Status date: September 21, 1983
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A3SO](https://openairdocs.org/tcds/A3SO)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/41F92FF14619DDA485256CC2000A96A1.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3305SW-D

## ADs that name it (0)

None.

## Approved models (3)

- The New Piper Aircraft Inc. PA-32-300 ([TCDS A3SO](https://openairdocs.org/tcds/A3SO))
- The New Piper Aircraft Inc. PA-32-301 ([TCDS A3SO](https://openairdocs.org/tcds/A3SO))
- The New Piper Aircraft Inc. PA-32-301T ([TCDS A3SO](https://openairdocs.org/tcds/A3SO))

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