# STC SA1524SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc
- Description: Installation of Mitchell automatic flight system model AK371 consisting of altimatic IIIB-1 autopilot with optional radio and glide slope couplers.
- Status date: July 13, 1984
- Data sheets: 1A10, 1A10
- Certificate PDF: https://openairdocs.org/files/sha256/b8/3e/b83e04f319171eb849e7e891e028b5b93340f4582d2e8b296cb8a346dbff77aa
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B29B38B4ED6A4BCE86256CF5004DF85D.0001
- Page: https://openairdocs.org/stc/SA1524SW

## ADs that name it

None.

## Approved models (2)

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

## 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.

Btpartment of tensportation —federal SlDiation administration Supplemental Itgpe Certificate SA1524SW Century Flight Systems, Inc.

P.M. 1195 P. 0. Box 610 Mineral Wells, TX 76067 Air ffajatnaf i 1A10 Piper PA-23-250, PA-E23-250 Installation of Mitchell Automatic Flight System Model AK371 consisting of Altimatic IIIB-1 Autopilot with optional Radio Coupler and Glide Slope Coupler according to Bulletin 492 Revision (2) dated 10-25-72 and Master Drawing List 87A599 Revision A dated 10-11-72; optional Command/Electric Trim System Model AK381 installed according to Bulletin 502 dated 6^25-73 and Master Drawing List 87A615, Revision A, dated 7-9-73; optional Radio Coupler Model 1C388-3 according to Bulletin 611 dated 3-25-74.

See Continuation Sheet, Page 2, a part of this STC »±th °the' P-viously approved modifications -u March 24, 1972 October 18, 1972 8-24-73; 4-16-7A; 7-13-84, Revision 3 Don P. Watson Manager, Aircraft Certification Division Southwest Region (Till*)

T/lis certificate may be Hans/erred in accordanct with f-AK 21.17.

FAAFotH •110-100-61)

Unittd gtata Btpartmtnt of Cransportation— Jf tfleral SUnation administration ^uppiemental TCgpt Certificate(Continuation £hect) SA1524SW, Revision 3, dated 7-13-84 LIMITATIONS AND CONDITIONS:

This modification restricted to Piper Models PA-23-250 and PA-E23-250 with 28 volt electrical system. Also Eligible on Piper Models PA-23-250 and PA-E23-250 modified in accordance with STC SA909WE.

FAA Approved Airplane Flight Manual Supplement dated 10-18-72 required with installation of Mitchell Automatic Flight System Model AK371; Supplement dated 4-16-74 is required with Radio Coupler Model 1C388-3 installation.

FAA Approved Mitchell Industries, Inc. Placard 13A713 is required with Command/ Electric Trim System Model AK.381.

FAA FORM aiio-2-i do-89) 7"to ctrlifcatt may bt traiufirrtd in accmdanct with FAR 21.47.

## Every issue (1)

- July 13, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/b8/3e/b83e04f319171eb849e7e891e028b5b93340f4582d2e8b296cb8a346dbff77aa)

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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.