# STC SA3122SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitcnell Automatic Flight System Model AK574 consisting of a
Century III Autopilot with Optional Radio Coupler and Glide Slope Coupler
- Applied: March 1, 1976
- Status date: June 5, 1984
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A12SO](https://openairdocs.org/tcds/A12SO)
- Certificate PDF: https://openairdocs.org/files/sha256/21/5a/215acccdf72d29a13fbe82291694df37e07c006e5383bc92a4d74850b9690e3c
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/887EA32BA2FA42F185256CC2000A941D.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3122SW-D

## ADs that name it (0)

None.

## Approved models (6)

- Commander Aircraft Corporation 112 ([TCDS A12SO](https://openairdocs.org/tcds/A12SO))
- Commander Aircraft Corporation 112B ([TCDS A12SO](https://openairdocs.org/tcds/A12SO))
- Commander Aircraft Corporation 112TC ([TCDS A12SO](https://openairdocs.org/tcds/A12SO))
- Commander Aircraft Corporation 112TCA ([TCDS A12SO](https://openairdocs.org/tcds/A12SO))
- Commander Aircraft Corporation 114 ([TCDS A12SO](https://openairdocs.org/tcds/A12SO))
- Commander Aircraft Corporation 114A ([TCDS A12SO](https://openairdocs.org/tcds/A12SO))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA312254-D This certificate issued to: Century Flight Systems, Inc.

F.M. 1195 P. O. Box 610 Mineral Wells, TX 76067 Punt 23 of the Federal Aviation Regulations.

Original Product - Type bertificate Number. A12SO Make: Rockwell Commander Model: 112, 112B, 112TC, 112TCA, 114, 114A Description of Type Design Change:

nstallation of Mitchell Automatic Flight System Model AK574 consisting of Century III Autopilot with Optional Radio Coupler and Glide Slope Coupler according to Bulletin No. 698, Revision 6, dated 1-10-79 and Master Drawing List No. 87A828, Revision F, dated 1-10-79 (14 Volt System) and/or later FAA Approved Revisions of the above data.

Limilalions andbindilions: The following FAA/DAS Approved Pilot's Operating Handbook Supplements are required: P/N 68S331-1, dated 1-23-79 for Rockwell Commander Models 114 and 114A P/N 68S379-1, dated 4-29-76, revised 12-23-76 for Rockwell Commander Model 112TC and 112TCA P/N 68S428, dated 10-11-76 for Rockwell Commander Model 112B. FAA/DAS Approved Airplane Flight Manual Supplement, P/N 685359, dated 3-19-76 is required for Rockwell Commander Model 112 and/or later FAA Approved Revisions of the above Supplements. Placard, P/N 13A66 IS required for Rockwell Commander Model 112; See Continuation Sheet, pathis'siPart of This rificate and the preing tale atch is the basis for appreval shull vernain in effed unhil sur- Compatibility of this modification with other previously approved modifications rendered, suspended, vercked, or a termination date is otherwise es lablished by the Adreinis brat, n of the Federal Aviation Administration . • Date of Application: 3-1-76 Jule reissued: 4-29-76; 10-11-76; 12-23-76;

1-23-79; 6-05-84, Revision 5 Date of Issuance: 3-19-76 Jale unended:

FEDERAL AVIATIO By Direction of the Administrator Don P. Watson (Signature) TAMINISTRALO Manager, Aircraft Certification Division Southwest Region (Title)

47.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA3122SW-D, Rev. S dated 6-5-84 Limitations and Conditions: (Cont'd):

Placard, P/N 13A660-1 is required for Rockwell Commander Models 112B, 112TC, 112TCS, 114 and 114A.

**FAA FORM 8110-2-1 (10-80)**

**PAGE OF PAGES**

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street) ( City. Stake, and 21P code) from (Name of grantor) (Print or sype) - (Address of grantor) (Number and sireel ;

(City, Stale, and ZIP code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink): - 10-242-020

## Every issue (1)

- June 5, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/21/5a/215acccdf72d29a13fbe82291694df37e07c006e5383bc92a4d74850b9690e3c)

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