# STC SA8397SW-D

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 55/55X two axis automatic flight guidance system, Model ST-537
- Applied: May 27, 1994
- Status date: August 15, 2001
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 2A3](https://openairdocs.org/tcds/2A3)
- Certificate PDF: https://openairdocs.org/files/sha256/9a/2c/9a2c555379051e668dbd7c86a47d94f0326202fe27de39782b91a32a96f3c41f
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3D1830ACB407F33585256CC20058E77E.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA8397SW-D

## ADs that name it (0)

None.

## Approved models (1)

- Mooney Aircraft Corporation M20J ([TCDS 2A3](https://openairdocs.org/tcds/2A3))

## 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.

'finiicb j&atcs ®f .America of transportation - ^cberai Rotation ^bmtnistratton (Certificate SA8397SW-D S-TEC Corporation One S-TEC Way Mineral Wells Municipal Airport Mineral Wells, TX 76067-9236 2A3 Mooney M20J Qebra/t Installation of S-TEC System 55/55X Two Axis Automatic Flight Guidance System, Model ST-537, according to Bulletin No. 637, Revision 3, dated 8-15-01 and Master Drawing List No. 92688, Revision C, dated 8-15-01 or later FAA Approved revisions of the above data (28 Volt System).

(See Continuation Sheet, Pages 2 and 3, a part of this STC.)

If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

iMtfM /it f/ 5-27-94 r/W? a/Aue*M<v .• 5-31 -94 8-15-01 (Signature) Michael Keirnan DAS Staff Coordinator. DAS 5 SW (Title)

JIHmtcb J5>taics ©f J^mcrtca bparimertt of '{Urartsportaium - ,3feheral JV.&taitott jAhmtmstratinn (Kerttftcate SA8397SW-D Limitations and Conditions (con't.)

1. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891077, dated 5-31-94 is required for Mooney Model M20J or later FAA Approved revisions of the above supplement.

2. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891077, Revision 1, dated 8-15-01 is required for Mooney model M20J for S-TEC System 55/55X or later FAA Approved revisions of the above supplement.

3 . Compatibility of this modification with other previously approved modifications must be determined by the installer.

FAA Form 8110-2-1(10-69) Page 2 of 2

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street) (City, State, and <7P code) from (Name of grantor) (Print or type) (Address of grantor) (Number and street) (City, Stale, and ^1P code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

U.S. GOVERNMENT PRINTING OFFICE : 19«6 OF—205-579

## Every issue (1)

- August 15, 2001: Amended, Current. [certificate](https://openairdocs.org/files/sha256/9a/2c/9a2c555379051e668dbd7c86a47d94f0326202fe27de39782b91a32a96f3c41f)

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