# STC SA1798SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell Automatic Flight System Model AK467 consisting of Century IIB Autopilot with optional Radio Coupler
- Applied: January 22, 1974
- Status date: July 16, 1984
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A12](https://openairdocs.org/tcds/3A12)
- Certificate PDF: https://openairdocs.org/files/sha256/7d/7c/7d7c3b4161a9d729236baa7b366c940fdd14f1fb6b4f1ecbd30bf02ba6b98ceb
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A35AA72FADB05C1085256CC10083D0B3.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA1798SW

## ADs that name it (0)

None.

## Approved models (1)

- Cessna Aircraft Company 172M ([TCDS 3A12](https://openairdocs.org/tcds/3A12))

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

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©cpartmtnt of 'Cranaportation —JFtdcral dotation administration Supplemental 'Cgpe Certificate isKwrrwer' SA1798SW Century Flight Systems, Inc F.M. 1195 P. 0. Box 610 Mineral Wells, TX 76067 Gati^^ 3 Civil Air 3A12 Cessna 172M Installation of Mitchell Automatic Flight System Model AK467 consisting of Century IIB Autopilot with optional Radio Coupler according to Bulletin No. 588 dated 1-16-74 and Master Drawing List 87A699 Revision A dated 1-31-74. Installation of Mitchell Radio Coupler Model 1C388-3 according to Bulletin No. 611, Revision 1, dated 4-16-74 and Master Drawing List 87A708, Revision A, dated 4-16-74.

FAA Approved Mitchell Industries Placard 13A689-467 is required.

FAA Approved Autopilot Flight Manual Supplement P/N 68S168 dated April 16, 1974, is required for Mitchell Radio Coupler Model 1C388-3.

»PP™ved modifications January 22, 1974 January 31, 1974 ''tiJ^ .

«•**>««/ 4-16-74; 7-16-84, Revision 2 Don P. Watson Manager, Aircraft Certification Division Southwest Region ^ Tnis cerlificatt may be ttansferrrd in accordance with I-AH 21.17.

FAAfouailO-lflO-AS]

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number .

to (Name of transferee) (Address of transferee) r and tlrffl) y, Slalr. and flPi from (Name of grantor) (Print or type) (Address of grantor) umbtt and ttrret) (City. Slalr. a Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

**C FAAAC6B-SS3B**

## Every issue (1)

- July 16, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/7d/7c/7d7c3b4161a9d729236baa7b366c940fdd14f1fb6b4f1ecbd30bf02ba6b98ceb)

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