# STC SA3330SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Mitchell automatic flight system AK753, consisting of Century III autopilot with optional radio and glide slope couplers.
- Status date: September 21, 1983
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A15](https://openairdocs.org/tcds/3A15)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4E2968234A7DED9685256CC2000A96F9.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3330SW-D

## ADs that name it (0)

None.

## Approved models (1)

- Raytheon Aircraft Company A36TC ([TCDS 3A15](https://openairdocs.org/tcds/3A15))

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.