# STC SA929SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Automatic flight system AK270 consisting of Century III autopilot with optional automatic pitch trim radio and glide slope coupler.
- Status date: July 9, 1984
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 2A4](https://openairdocs.org/tcds/2A4)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/AE97F32E6CDB21B985256CC20058EAB3.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA929SW

## ADs that name it (0)

None.

## Approved models (1)

- Twin Commander Aircraft Corporation 680FL ([TCDS 2A4](https://openairdocs.org/tcds/2A4))

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