# STC SA3150SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell Automatic Flight System Model AK607 consisting of Century III
Autopilot with Optional Radio Coupler and Glide Slope Coupler
- Applied: June 30, 1976
- Status date: June 6, 1984
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A-765](https://openairdocs.org/tcds/A-765)
- Certificate PDF: https://openairdocs.org/files/sha256/22/a5/22a5355687deccbf26f3cdd17b2f7cf1c4b818a7c9edd4145ab32214938ba6c6
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F3F9AE5321B4554185256CC2000A9482.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3150SW-D

## ADs that name it (0)

None.

## Approved models (15)

- Beechcraft Corporation 3N ([TCDS A-765](https://openairdocs.org/tcds/A-765))
- Beechcraft Corporation 3NM ([TCDS A-765](https://openairdocs.org/tcds/A-765))
- Beechcraft Corporation 3TM ([TCDS A-765](https://openairdocs.org/tcds/A-765))
- Beechcraft Corporation C-45G ([TCDS A-765](https://openairdocs.org/tcds/A-765))
- Beechcraft Corporation C-45H ([TCDS A-765](https://openairdocs.org/tcds/A-765))
- Beechcraft Corporation D18C ([TCDS A-765](https://openairdocs.org/tcds/A-765))
- Beechcraft Corporation D18S ([TCDS A-765](https://openairdocs.org/tcds/A-765))
- Beechcraft Corporation E18S ([TCDS A-765](https://openairdocs.org/tcds/A-765))
- Beechcraft Corporation E18S-9700 ([TCDS A-765](https://openairdocs.org/tcds/A-765))
- Beechcraft Corporation G18S ([TCDS A-765](https://openairdocs.org/tcds/A-765))
- Beechcraft Corporation H18 ([TCDS A-765](https://openairdocs.org/tcds/A-765))
- Beechcraft Corporation JRB-6 ([TCDS A-765](https://openairdocs.org/tcds/A-765))
- Beechcraft Corporation RC-45J ([TCDS A-765](https://openairdocs.org/tcds/A-765))
- Beechcraft Corporation TC-45H ([TCDS A-765](https://openairdocs.org/tcds/A-765))
- Beechcraft Corporation TC-45J ([TCDS A-765](https://openairdocs.org/tcds/A-765))

## 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 SA3150SW-D This certificate issued to: Century Flight Systems, Inc.

F.M. 1195 P. O. Box 610 Mineral Wells, TX 76067 Purt 3 of the CIVII Air Regulations:

Original Product - Type Certificate Number. A-765 Make: Beech Model: JRB-6, D18C, D18S, E18S, E18S-9700, G18S, H18, RC45J, 3N, 3NM, 3TM, C45G, C45H, IC-45H and Description of Type Design Change: TC45J (SNB-5) Installation of Mitchell Automatic Flight System Model AK607 consisting of Century III Autopilot with Optional Radio Coupler and Glide Slope Coupler according to Bulletin No. 731, dated 6-25-76 and Master Drawing List No. 87A870, dated 6-25-76.

Lirilalions and bindilions: Also approved for Beech Mode1 RC45J when modified per Beech Dwg. 404-001100, and Beech Models 3N, 3NM and 3TM when modified per Beech Dwg. 18-5011;

also all models on this STC except Beech Models JRB-6, D18C, and RC45J, when modified in accordance with Hamilton Aircraft Company, Inc., STC SA572WE.

FAA/DAS Approved Airplane Flight Manual Supplement, P/N 68S398, dated 7-26-76 is required.

FAA/DAS Approved Airplane Flight Manual Supplement, PAN 68S399, dated 7-26-76 is required.

Trist rificatanined be tiny kai a teh is the basis ferr appreval shall renain in effet until sur Compatibility of this modification with other previously approved modifications P/N 13A660 is required.

vendered, suspended, veroked, or a termination date is sherwise established by the Administrater if the Federal Aviation Administration .

Date of Application: 6-30-76 Jule missused: 6-6-84, Revision 1 Date of Issuance: . 7-26-76 I ate unsended:

FEDERAL AVIATION By Direction of the Administrator Don P. Watson (Signature ) CHINISTRATO Manager, Aircraft Certification Division Southwest Region (Title) 47 FAA FORM 8110-2 (10-68)

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee).

(Address of transferee) (Number and streel) from (Name of grantor) (Print or type) (Address of grantor) ( Number and sireel ;

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

Signature of grantor (In ink):

+11 = r. 0~. 1090-282-180

## Every issue (1)

- June 6, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/22/a5/22a5355687deccbf26f3cdd17b2f7cf1c4b818a7c9edd4145ab32214938ba6c6)

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