# STC SA5128NM

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Flight Structures Inc, United States
- Description: Electrical provisions for a satellite communication system (SATCOM).
- Applied: July 26, 1989
- Status date: February 28, 1991
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE)
- Certificate PDF: https://openairdocs.org/files/sha256/9c/eb/9ceb226a0e35db6f21bfb22770b84b56f6abe0841dbc1fa9d8ea9089fd9192a3
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/51AF4AAD9895FEAC85256CC2001226CF.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA5128NM

## 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

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

1205 United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA5128NM This certificate issued to: Flight Structures, INC.

Part 25 of the Federal Aviation Regulations: (see Type Certification Data Sheet AZOWE for complete certification basis) Original Product -Type bertificate Number: AZOWE Make: Boeing Model: 747-357 Description of Type Design Change: Electrical provisions for a Satellite communicatol System (SATCOM), in accordance with Flight Structures Master Drawing List 90FS072-081, Revision IR, dated February 27, 1991, Limitations and Conditions: Approval of this change in type design applies basically to the above model aircraft only. This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined that the interrelationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the A copy of this Certificate and Flight Structures Master Drawing List 50 aRe ision ate outied aircraft Shall be maintained as part of the permanent records

Date of Application: JUlY 26, 1989 Lute missued:

Date of Issuance: . February 28, 1991 Date Amended:

FEDERAL AVIATION By Direction of the Administrator Steward K9mille ( Signature ) TOMINIST RATO Assistant Manager, Seattle Aircraft Certification Office (Title)

47.

## Every issue (1)

- February 28, 1991: Issued, Current. [certificate](https://openairdocs.org/files/sha256/9c/eb/9ceb226a0e35db6f21bfb22770b84b56f6abe0841dbc1fa9d8ea9089fd9192a3)

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