# STC SA1555SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell automatic flight system model AK397 consisting of Century IIB autopilot with optional radio coupler.
- Applied: October 20, 1972
- Status date: July 13, 1984
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A13](https://openairdocs.org/tcds/3A13)
- Certificate PDF: https://openairdocs.org/files/sha256/ab/1f/ab1f86a252476b5f3c6b86e1f272220a5327b3b2522bb81002a7f3bc3d7414cb
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3E255B53ACCD312E85256CC100821339.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1555SW

## ADs that name it (0)

None.

## Approved models (1)

- Cessna Aircraft Company 182P ([TCDS 3A13](https://openairdocs.org/tcds/3A13))

## 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.

Btpartmtiu of ^transportation —federal atriation administration Supplemental t:uje Certificate iyleati£a&0 €Maf<n&4> ,^fr SA1555SW Century Flight Systems, Inc.

P.M. U95 P. 0. Box 610 Mineral Wells, TX 76067 -* Civil Air JAIJ Cessna 182P naf. Installation of Mitchell Automatic Flight System Model AK397 consisting of "Century IIB Autopilot with optional Radio Coupler according to Bulletin No. 520 Revision (.1) dated 11-20-72 and Master Drawing List 87A621 Revision A dated 11-20-72. Installation of Mitchell Radio Coupler Model 1C388-3 according to Bulletin No. 611, Revision (1) dated 4-16-74 and Master Drawing List No. 87A708, Revision A, dated 4-16-74.

FAA Approved Mitchell Industries, Inc. Placard 13A689-397 is required with Century IIB.

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

October 20, 1972 November 21, 1972 modifications i j y,^^,,,,/ 4-16-74; 7-13-84, Revision 2 ~s a& **ptttjt*fttfc^£ Don P. Watson Manager, Aircraft Certification Division Southwest Region ' Any alteration oflhis certificate is punishable by a fine of not exceeding tl ,000, or imprisonment not exceeding 3years, or bolh^ T/iis arlifiiale may t>t Itamferred in atiardancr ii'itfi t-AR 21.17.

The FAA will reiisur thr certificate in the name of ihe transferee and forward il to him.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificale Number to (Name of transferee) (Address of transferee) { Nurnbrr and Mr/ft) from (Name of grantor) (Print or type) .

(Address of grantor) (Number and slwl J , SlaU, ana" ZIP toJt) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

**C FAA AC 69-S536**

## Every issue (1)

- July 13, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/ab/1f/ab1f86a252476b5f3c6b86e1f272220a5327b3b2522bb81002a7f3bc3d7414cb)

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