# STC SA3004SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell automatic flight system model AK436 consisting of Piper Autocontrol IIIB autopilot with optional radio coupler.
- Applied: June 4, 1974
- Status date: August 1, 1984
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 2A13](https://openairdocs.org/tcds/2A13)
- Certificate PDF: https://openairdocs.org/files/sha256/f5/56/f5563df2e36f528dbcb13533ee7cc740b5fbebfb899741d6e776257154ce60d5
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F16953DD577F170385256CC2000A9295.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3004SW-D

## ADs that name it (0)

None.

## Approved models (1)

- Piper Aircraft Inc. PA-28R-200 ([TCDS 2A13](https://openairdocs.org/tcds/2A13))

## 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: SA3004SW-D This certificate issued to: Century Flight Systems, Inc.

F.M. 1195 P. O. Box 610 Mineral Wells, TX 76067 Purt. 3 othe Civil Air Regulations:

Original Product - Type Certificate Number: 2A13 Make: Piper Model: PA-28R-200 Description of Type Design Change: Installation of Mitchell Automatic F118ht System Model AK436 consisting of Piper AutoControl IIIB Autopilot with Optional Radio Coupler according to Bulletin No. 558, dated 6-3-74 and Master Drawing List No.

87A725, dated 6-3-74.

Eligible on Piper Model PA-28R-200, S/N 28R-7235001 and Up.

FAA/DAS Approved Airplane Flight Manual Supplement, P/N 68S178, dated 6-13-74 is required.

This ce bleede era the a pip ting tale which is the bas is fur appo val shall remain in effel until sur- Compatibility of this modification with other previously approved modifications rendered, suspended, revoked, or a termination date is otherwise es lablished by the Advinis tral, r of the Federal Aviation Administration .

Date of Application: 6-4-74 Jule rissued: 8-1-84, Revision 1 Date of Issuance: 6-13-74 Date Amended:

FEDERAL NATION elin of the SIdministrater Don P. Watson OMENISTRAT Manager, Aircraft Certification Division Southwest Region (Title)

47.

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

Signature of grantor (In ink):

## Every issue (1)

- August 1, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/f5/56/f5563df2e36f528dbcb13533ee7cc740b5fbebfb899741d6e776257154ce60d5)

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