# STC SA1428WE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Northwest Airlines, Inc., United States
- Description: Installation of cargo interior.
- Applied: March 29, 1989
- Status date: November 14, 1986
- Product: Aircraft, Large Airplane
- Data sheets: [TCDS 1A7](https://openairdocs.org/tcds/1A7)
- Certificate PDF: https://openairdocs.org/files/sha256/35/6e/356e425aeae2acf271c024200e88b800518b604927e2066cb67ee40f49b791c4
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID119193789720260803163855.0001
- DRS record last changed: August 3, 2026
- Page: https://openairdocs.org/stc/SA1428WE

## ADs that name it (0)

None.

## Approved models (1)

- Martin-Marietta Corporation 404 ([TCDS 1A7](https://openairdocs.org/tcds/1A7))

## What the certificate says

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

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA1428WE This certificate issued to: Northwest Airlines, Inc.

2700 Lone Oak Parkway Eagan, MN 55124 Part 4b of the CIViT Air Regulations.

Original Product - Type bentificate Number: 1A7 Make: Martin Model: 404 Description of Type Design Change:

Installation of cargo interior in accordance with Pacific Air Lines Drawings 425-10004, 425-10005, 425-10006, 425-10008, 425-30003 and 425-20007.

Refer to FAA Approved Airplane Flight Manual Supplement dated June 9, 1967.

F. Horn ( Signature) TO MINISTRATIO Manager15 Chica tra cal Region, FRAtication office, (1 itie)

## Every issue (1)

- November 14, 1986: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/35/6e/356e425aeae2acf271c024200e88b800518b604927e2066cb67ee40f49b791c4)

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