# STC SA5387SW-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 60 single axis automatic flight guidance system, model ST-277.
- Applied: March 6, 1985
- Status date: March 25, 1985
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A16EA](https://openairdocs.org/tcds/A16EA)
- Certificate PDF: https://openairdocs.org/files/sha256/1c/d7/1cd7b1b7368a9cd478543090f50123174602ba3aeddd40519a38086001a42b41
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4E781FDA0B185FE785256CC2001228C8.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA5387SW-D

## ADs that name it (0)

None.

## Approved models (3)

- True Flight Holdings LLC AA-5 ([TCDS A16EA](https://openairdocs.org/tcds/A16EA))
- True Flight Holdings LLC AA-5A ([TCDS A16EA](https://openairdocs.org/tcds/A16EA))
- True Flight Holdings LLC AA-5B ([TCDS A16EA](https://openairdocs.org/tcds/A16EA))

## 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.

ttmrri gtatti of anrnca Btpartmcnt of transportation — federal aoiation administration Supplemental TCgpe Certificate SA5387SW-D *&4 mz* S-TEC Corporation Rt. 4, Bldg, 946 Wolters Industrial Mineral Wells, TX n £* Complex 76067 litrn/>tr J3^t*r*mtn& f< A 1 b E A

GULFSTREAM AEROSPACE 23 Al -&l<a ft '^aria* .

Installation of S-TEC System 60 Single Axis Automatic Flight Guidance System, Model ST-277, according to Bulletin No, 377, dated 2-27-85 and Master Drawing List No, 92316, dated 2-27-85 and/or later revisions of the above data (14Volt System).

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1. FAA Approved Supplemental Flight Manual, P/N 89590, dated 3-25-85 is required for Gulf stream Aerospace Models AA-5, AA-5A and AA-5B and/or later FAA Approved revisions of the above supplement.

2. Compatabil ity of this modification with other previously approved modifications must be determined by the installer, /Ai&<cerjyica£e ^7 nd &t* ^cyyif^trj,g'aa/^^^A^^^^f^aAtA^>^^>^iw>v<^^A^^ £.n£Le/r*al AuASif ndza, .wifK^jx, 3-6-85 3-25-85 (Signature) Harold W. Holdeman DA.S Star>' Coordinator. DAS 5 SI-J (Titlt)

7~Au ctrtijuatt may In traniftmd in accordant* with FAR 21.47.

FAA Fow 1110-2 (tO-61)

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

Signature of grantor (In ink):

US. GOVERNMENT PRINTING OFFICE : 1966 OF — 205-579

## Every issue (1)

- March 25, 1985: Issued, Current. [certificate](https://openairdocs.org/files/sha256/1c/d7/1cd7b1b7368a9cd478543090f50123174602ba3aeddd40519a38086001a42b41)

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