# STC SA837SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc
- Description: Installation of Mitchell automatic flight system model AK255,consisting of Century III autopilot with optional automatic pitch trim and radio coupler.
- Status date: June 29, 1984
- Data sheets: 5A4
- Certificate PDF: https://openairdocs.org/files/sha256/6c/d5/6cd5892655c2a7c3f206e7a658024c6fadd9452d5d22b3abb885536ee031620c
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D5C2FDFBCAA45F7185256CC20058E767.0001
- Page: https://openairdocs.org/stc/SA837SW

## ADs that name it

- [AD 70-15-18](https://openairdocs.org/ad/70-15-18): Automatic Pilot and Automatic Aileron Stabilizer Instruments · Mitchell Industries Auto Pilot Systems Instruments. Effective Aug 31, 1970

## Approved models (1)

- Raytheon Aircraft Company D50E (TCDS 5A4)

## 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.

Btpartmcnt of ^transportation —federal atoiation administration Supplemental t:uje Certificate <yKa#?we4t' SA837SW Century Flight Systems, Inc.

F.M. 1195 P.O. Box 610 Mineral Wells, TX 76067 <£rL&4TuSi&deAjjOsr^fe^<£rt^fe Civil Air . fffjyu{{g£i'{*»*At Gtwarui/ tJroetttc^ —— < i • 5A4 Beech D50E Installation of Mitchell Automatic Flight System Model AK255, consisting of Century III Autopilot with optional Automatic Pitch Trim and Radio Coupler according to Bulletin No. 364, dated September 5, 1967 and installation of Mitchell Radio Coupler Model 1C388-3 per Bulletin No. 611, Revision 1, dated 4-16-74 and Master Drawing List No.

87A7Q8, Revision A, dated 4-16-74.

1. Beech Model D5QE is. the only model to be approved for this modification by STC SA837S.W.

2. Mitchell Industries, Inc. FAA Approved Airplane Flight Manual Supplement dated September 27, 1967 is required,

3. FAA Approved Airplane Flight Manual Supplement, P/N 68S167, dated 4-16-74 is required for Mitchell Radio Coupler Model 1C388^3.

°ther Previously approved modifications -y^ September 5, 1967 September 27, 1967 ,»**««/.• . 4-16-74; 6-29-84, Revision 2 *J ' £n* "'O Don P. Watson Manager, Aircraft Certification Division Southwest Region (Title)

This certificate may be transferred m accordance with PAR 21.17.

FAAFo«M8HO-J(IO-6$)

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street) (City, State, and £IP code) from (Name of grantor) (Print or type) (Address of grantor) (Number and street) (City, State, and ^IP code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):.

U.S. GOVEBNMENT PRINTING OFFICE : I9«« OF—205-579

## Every issue (1)

- June 29, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/6c/d5/6cd5892655c2a7c3f206e7a658024c6fadd9452d5d22b3abb885536ee031620c)

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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.