# STC SA1321SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell automatic flight system AK298 consisting of altimatic IIIB-1 autopilot w optional automatic command electric pitch trim, radio coupler and glide slope coupler.
- Applied: April 29, 1971
- Status date: July 9, 1984
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A7SO](https://openairdocs.org/tcds/A7SO)
- Certificate PDF: https://openairdocs.org/files/sha256/f9/e2/f9e2aa40170b6573023acd00e0b0cf677c2200a38f99e84f36f146ffac97d4e4
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/99A170393124CCBA85256CC100820ED4.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA1321SW

## ADs that name it (0)

None.

## Approved models (1)

- The New Piper Aircraft Inc. PA-34-200 ([TCDS A7SO](https://openairdocs.org/tcds/A7SO))

## 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.

©epartment or ^transportation -federal Sttriation administration Supplemental ICuje Certificate SA1321SW f&rtutr *Steatda&tf*iA:

Zhtainat <J Century Flight Systems, Inc F.M. 1195 P. 0. Box 610 Mineral Wells, TX 76067

•nidaAvriA jvna ffrndifif* 23 V-^«- Federal Aviation A7SO Piper PA-34-200 Installation of Mitchell Automatic Flight System Model AK298 consisting of Altimatic IIIB-1 Autopilot with optional Automatic/ Command Electric Pitch Trim, Radio Coupler, and Glide Slope Coupler according to Mitchell Drawing List 87A551, Revision A, dated 5-27-71. 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 Airplane Flight Manual Supplement dated 6-2-71 is equired with Altimatic IIIB-1 installation; Supplement P/N 68S167 dated 4-16-74 is required with Mitchell Radio Coupler Model 1C388-3.

FAA Approved Mitchell Industries, Inc. Placard 13A656 dated 5-11-71 is required with Command Electric Trim installation.

thestaier^" approved modifications -4dn4fra<ite^ .^ tf dnf April 29, 1971 June 2, 1971 <*> — / 4-16-74; 7-9-84, Revision 2 Don P. Watson Manager, Aircraft Certification Division Southwest Region (Title) A ny alteration of this certificate i j punishable by a fine of not exceeding tl ,000, or imprisonment not exceeding 3 yean, or both.

FAAF«*ailO-2[IO-68) This cerllficalt may be transferred in iKCOidance with f-AR 21 17.

INSTRUCTIONS: The transfer cndorscmcnl below may he usrd to notify the appropriate FAA Regional Office of ihe transfer of this Supplemental Type Certificate.

The FAA will reissue the certificate in the name of ihe transferee and forward it to him.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) r aid itittl) (City, SlaU, and Z.IP mti) from (Name of grantor) (Print or type) (Address of grantor) and ilreetj (City. Slatt. and £1P todl) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

**C FAA AC 69-5536**

## Every issue (1)

- July 9, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/f9/e2/f9e2aa40170b6573023acd00e0b0cf677c2200a38f99e84f36f146ffac97d4e4)

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