# STC SA929WE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Northwest Airlines, Inc., United States
- Description: Installation of wing flap landing gear aural warning installation.
- Applied: February 12, 1965
- Status date: November 14, 1986
- Product: Aircraft, Large Airplane
- Data sheets: [TCDS A-618](https://openairdocs.org/tcds/A-618), [TCDS A-669](https://openairdocs.org/tcds/A-669)
- Certificate PDF: https://openairdocs.org/files/sha256/f0/74/f07488f8caefe746d73ac74be9497da922fce5b2c4d07cb49dcba17d681e6cc3
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID128089543520260729142634.0001
- DRS record last changed: July 29, 2026
- Page: https://openairdocs.org/stc/SA929WE

## ADs that name it (0)

None.

## Approved models (2)

- McDonnell Douglas Corporation DC-3 Series ([TCDS A-618](https://openairdocs.org/tcds/A-618))
- McDonnell Douglas Corporation DC-3 Series ([TCDS A-669](https://openairdocs.org/tcds/A-669))

## 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: SA929NE This certificate issued to: Northwest Airlines, Inc.

2700 Lone Oak Parkway Eagan, MN 55124 Certifies that the change in the type design for the falling presuch with the limitations and conditions thereferas specified hereen meets the airanhiness requirements if Purt TA of the AerO Bulletin Regulations.

Original Product -TypePertificate Nurnber: A618, A669 Make: Douglas Mirtel: DC-3 Description of Type Design Change: .

installation of wing flap landing gear aural warning installation per FAA sealed WCA drawings DC-3-27-11 Sheets 1 through 5. .This installation is in compliance with CAR 40.155. This will require a placard in the cockpit (See drawing DC-3-27-11 sheet 5).

The approval of this change in type design applies basically to Douglas Model DC-3 aircraft only. This approval should not be extended to other airplanes of this model unless it is determined that the interrelationship between this change and any other previous modification will introduce no adverse effect upon the airworthiness of that airplane.

Date of Application: February 12, 1965 Date Reissued: October 13, 1982 November 14, 1986 Date of Issuance: April 28, 1965 Date Amended:

EDERAL AVIATION Buy dish of the Feldministreler W. F. Horn (Signature ) OMNISTRANO Manager, Chicago Aircraft Certification Office, ACE-115C, Central Region, FAA (Title)

47.

## Every issue (1)

- November 14, 1986: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/f0/74/f07488f8caefe746d73ac74be9497da922fce5b2c4d07cb49dcba17d681e6cc3)

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