# STC SA2437NM

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Northwest Airlines Inc, United States
- Description: Installation of fixed primary nozzles
- Applied: July 11, 1980
- Status date: December 30, 1986
- Product: Aircraft, Large Airplane
- Data sheets: [TCDS A22WE](https://openairdocs.org/tcds/A22WE)
- Certificate PDF: https://openairdocs.org/files/sha256/e7/00/e70042c98f70b08892bd98ddeda13f9666a477037e007decab64ca61fbe2f1a6
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID190755101920260807153932.0001
- DRS record last changed: August 7, 2026
- Page: https://openairdocs.org/stc/SA2437NM

## ADs that name it (0)

None.

## Approved models (1)

- McDonnell Douglas Corporation DC-10-40 ([TCDS A22WE](https://openairdocs.org/tcds/A22WE))

## 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: SA2437NM This certificate issued to: Northwest Airlines, Inc.

Part 25* of the Federal Aviation Regulations: *Certification basis is set forth on Type Certificate Data Sheet A22WE Original Product - Type bertificute Number: 122WE Make: McDonnell Douglas Model: DC-10-40 with JT9D-20, -20J Engines Description of Type Design Change:

Installation of fixed primary nozzles, Rohr master drawing list number 233D0009, Rev. A, dated October 24, 1984, or later FAA approved revisions. FAA approved Airplane Flight Manual Supplement dated October 17, 1984, or later FAA approved revisions, is required as part of this installation. This installation replaces turbine reverser fixed (P/N ASL 7151-1,-501,-503,-507 or -509) and translating P/N ASL 7152-1,-503 or -505) nozzle assemblies.

The conditions and limitations of Type Certificate Data Sheet A22WE apply.

copy of this STC must be included in the permanent records of each airplane modified in accordance with the STC. This approval should not be incorporated in any aircraft of these specific models unless it is determined that the interrelationship between this change and any previously approved configuration will not introduce any adverse effect on the airworthiness of that aircraft.

Date of Application: JUlY 11, 1980 Date Reissued:

Date of Issuance: October 25, 1984 Date Amended: December 30, 1986 FEDERAL AVIATION By Direction of the Administrator MINISTRATO Acting Manager, Los Angeles Aircraft Certification Office (Title)

47.

## Every issue (1)

- December 30, 1986: Amended, Current. [certificate](https://openairdocs.org/files/sha256/e7/00/e70042c98f70b08892bd98ddeda13f9666a477037e007decab64ca61fbe2f1a6)

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