# STC SA3069SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell automatic flight system model AK539 consisting of Century IV autopilot or AK539FD, consisting of Century IV flight director autopilot with optional remove annunciator.
- Applied: July 22, 1975
- Status date: June 20, 1984
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A31EU](https://openairdocs.org/tcds/A31EU)
- Certificate PDF: https://openairdocs.org/files/sha256/84/f6/84f6d46bff2aef0179ab5b65c4b75d7d3eda358b50e9bbe313a4ef368b268cd7
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8E4BB8F513F2CC7685256CC2000A9361.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3069SW-D

## ADs that name it (0)

None.

## Approved models (1)

- Vulcanair S.p.A. P 68B ([TCDS A31EU](https://openairdocs.org/tcds/A31EU))

## 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.

Bepartmtnt of transportation -federal atriation administration Supplemental t^gpe Certificate <yiwrrvvevi' SA3069SW-D Century Flight Systems, Inc.

F.M. 1195 P. 0. Box 610 Mineral Wells, TX 76067 4rte'f/vi^de4u:g^^^>M&fi

2.\. . 2. y / 23 Federal Aviation A31EU Partenavia P68B Installation of Mitchell Automatic Flight System Model AK539, consisting of Century IV Autopilot or AK539FD, consisting of Century IV Flight Director Autopilot with Optional Remote Annunciator according to Bulletin No. 660, Revision 2, dated 6-14-76 and Master Drawing List No. 87A798, Revision B, dated 6-14-76.

Airplane Flight Manual Supplement, P/N 68S259-1, dated 6-16-76 is required.

Placard P/N 13A660 is required.

£/«&„**««</: 3-31-76, 6-16-76; 6-20-84 Revision 3 _/<7<5- astu staff/:

Don P. WatSOn (Signature) Manager, Aircraft Certificatio'n Division Southwest Region (Title)

FAAFoiMftl 10-2(10-68)

.NSTRUCTIONS: The transfer end———en. below may be u~i ———i* ** «PproprU.e FAA Kepona. Office of .he tranifer of thu Supplemenul Type Certificate.

The FAA will remue ,he certificate in .he name of .he .ransferee and forward U .o him.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee)__ (Address of transferee) ___ from (Name of grantor) (Print or type).

(Address of grantor) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

## Every issue (1)

- June 20, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/84/f6/84f6d46bff2aef0179ab5b65c4b75d7d3eda358b50e9bbe313a4ef368b268cd7)

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