# STC SA3126SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell Automatic Flight System Model AK596 consisting of Century I
Autopilot with Optional Omni Tracker
- Applied: March 23, 1976
- Status date: June 5, 1984
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS LTC-11](https://openairdocs.org/tcds/LTC-11)
- Certificate PDF: https://openairdocs.org/files/sha256/27/9f/279f2a3224c3520e759bddfdf7184842301252befea27a914ecec9121a34a500
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/ED07B554BE47F59885256CC2000A942A.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3126SW-D

## ADs that name it (0)

None.

## Approved models (2)

- Cal Pacific Airmotive Inc. Army P-51D ([TCDS LTC-11](https://openairdocs.org/tcds/LTC-11))
- Cal Pacific Airmotive Inc. Army P-51K ([TCDS LTC-11](https://openairdocs.org/tcds/LTC-11))

## 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: SA31265N-D This certificate issued to: Century Flight Systems, Inc.

F.M. 1195 P. O. Box 610 Mineral Wells, TX 76067 Part 9 of the CIV11. A I x Regulations.

Original Product - Type bertificate Number: LTC-11 Make: North American Model: P51D, P51K (F51D, F51K) Description of Type Design Change:

Installation of Mitchell Automatic Flight System Model AK596 consisting of Century I Autopilot with Optional Omni Tracker according to Bulletin No. 720, dated 3-22-76 and Master Drawing List No. 87A848, dated 3-22-76.

FAA/DAS Approved Supplemental Flight Manual, P/N 68S364, dated 3-30-76 is required.

Compatibility of this modification with other previously approved modifications if the Federal Aviation Administration .

Date of Application: 3-23-76 Jule misseuced: 6-05-84, Revision 1 Date of Issuance: 3-30-76 Date Amended:

FEDERAL AVIATION By Direction of the Administrator Don P. Watson ( Signature) OMINIS TIO 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) (Yumber and streel) (Cirj, Stake, and RIP code ) from (Name of grantor) (Print or sype) - (Address of grantor) (Number and sireel ;

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

Date of Transter:

Signature of grantor (In ink): -

289.090

## Every issue (1)

- June 5, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/27/9f/279f2a3224c3520e759bddfdf7184842301252befea27a914ecec9121a34a500)

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