# STC SA921SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc
- Description: Mitchell automatic flight system AK242 consisting of Century III autopilot with optional automatic pitch trim and radio coupler.
- Status date: July 6, 1984
- Data sheets: 1A10, 1A10, 1A10
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/ECF90AAF0FB3472785256CC20058EA89.0001
- Page: https://openairdocs.org/stc/SA921SW

## ADs that name it

- [AD 70-15-18](https://openairdocs.org/ad/70-15-18): Automatic Pilot and Automatic Aileron Stabilizer Instruments · Mitchell Industries Auto Pilot Systems Instruments. Effective Aug 31, 1970

## Approved models (3)

- The New Piper Aircraft Inc. PA-23-235 (TCDS 1A10)
- The New Piper Aircraft Inc. PA-23-250 (TCDS 1A10)
- The New Piper Aircraft Inc. PA-E23-250 (TCDS 1A10)

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From OpenAirDocs.org, an independent open copy of FAA data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.