# STC SA3128NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Telair US LLC, United States
- Description: Installation of a Bendix/King TRA-67 Mode S transponder.
- Applied: June 20, 1985
- Status date: March 26, 2015
- Product: Aircraft, Large Airplane
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE)
- Certificate PDF: https://openairdocs.org/files/sha256/fb/09/fb093ea3b0a2174bc4502dce8f40c198373fdb3ea134d12d64ed4e2e4ac30bd2
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1E8D4F852A68B56986257FC40054FBB3.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3128NM

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 747-300 Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))

## 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.

Part 25 of the Federal Aviation Regulations.

Installation of Side Guide Restraint System in accordance with FAA sealed Brownline Drawing List DL-46969, Revision N/C, dated January 29, 1986, or later FAA approved revision.

1) The approval of this change in type design applies to the aforementioned model only.

2) The installer must determine whether this design change is compatible with previously approved modifications.

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

Telair US LLC 500 Gateway Drive Goldsboro, NC 27534 A20WE Make : Boeing Model : 747-357 Date of application : June 20, 1985

Date of issuance : February 10, 1986

Date reissued : November 25, 1986; March 26, 2015

By direction of the Administrator Original Signed By:

Karol Mordasiewicz

(Signature) Karol Mordasiewicz Manager, Airframe & Administrative Branch Chicago Aircraft Certification Office

(Title)

FAA FORM 8110-2-1(10-69) PAGE 2 of 2 PAGES

## Every issue (1)

- March 26, 2015: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/fb/09/fb093ea3b0a2174bc4502dce8f40c198373fdb3ea134d12d64ed4e2e4ac30bd2)

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