# STC SA3-666

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Northwest Airlines Inc., United States
- Description: Reduction of the rated cargo capacity of the cargo bin from 2420 to 2050 pounds.  (Installs a removable, track mounted movable cargo bin)
- Applied: June 2, 1961
- Status date: November 1, 1962
- Product: Aircraft, Large Airplane
- Data sheets: [TCDS 4A25](https://openairdocs.org/tcds/4A25)
- Certificate PDF: https://openairdocs.org/files/sha256/b5/d8/b5d884d8f5b4a2a8ab4f894098b0a69cac4e0945c2c1446079d5981ad65568a1
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID126445215520260715183110.0001
- DRS record last changed: July 15, 2026
- Page: https://openairdocs.org/stc/SA3-666

## ADs that name it (0)

None.

## Approved models (1)

- McDonnell Douglas Corporation DC-8 Series ([TCDS 4A25](https://openairdocs.org/tcds/4A25))

## What the certificate says

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

643.0

FEDERAL AVIATION AGENCY Supplemental Type Certificate

**1. NAME AND ADDRESS OF APPLICANT NORTHWEST AIRLINES, INC.**

MINNEAPOLIS ST, PAUL INT'L AIRPORT ST. PAUL 11, MINNESOTA FORM APPROVED, BUDGET BUREAU NO. 04-P015

**INSTRUCTIONS - SUBMIT IN TRIPLICATE TO LOCAL**

**FAA FLIGHT STANDARDS INSPECTOR**

**COPY WILL BE RETURNED TO APPLICANT UPON**

ISSUANCE Supplemental Type Certificate APPLIED FOR:

AIRCRAFT ENGINE • ROPELLER

ORIGINAL MODEL DESIGNATION DC-8-32 NEW MODEL DESIGNATION (If desired)

3. DESCRIPTION OF CHANGE REVISION TOI NWA PROJECT 8-25-31958 *EQUIPMENT FURNIBHINGS, CARGO PROVIBIONS, AFT CABIN, DCS - INSTALL®. THE CARCO BIN ENSTALLED BY THIS PROJECT WAS BRIGINALLY APPROVED UNDER SUPPLEMENTAL TYPE CERTIFICATE SA3-666 ON JULY 3. 1961. AS A RESULT OF AMENDMENTS TO CAR 40.34, 41-42 AND 42-37 IT BAS NECESSARY TO REDUCE THE RATED CARGO CAPACITY OF THE CARGG BEN FROM 2420 TO 2050 POUNDS "ORTHWEST AIALINES REPORT NO, 8-25-3198S-1 "A" REVISION AND ENGENEERING ORDER -25-31985"D" REVISION AND THE POLLENING: DRAWINGS SUBSTANTIATE THIS CHANGE.

8D25-31526(A) 8025-31530(A) 8025-31516(A) 8025-31 518(A) 8025-31 519(A) 8025-31525(A) WILL DATA BE AVAILABLE FOR SALE OR RELEASE TO OTHER PERSONS? YES | NO D. WILL PARTS BE MANUFACTURED FOR SALE (Ref. CAR 1.55)? YES - NO

**5. SIGNATURE AND TITLE OF APPLICANT**

SIGNATURE 10-29-02 DIRECTOR OF ENGINEERI NO Date of Application: TITLE

6. To be Completed by FAA

NATURE AND LOCATION OF DATA Stress Analysis, Report 8-25-31988-1 and data listed on NWA Engineering Order 8.25.

31988 Revision (D) dated October 17, 1962, Item 11, "Drawings"; including dravings noted under Item 3 above; and Conformity and O@pliance Inspection Reports are on file in:

FAA Engineering and Manufacturing Branch, Kansas Cicy, Missouri BASIS OF APPROVAL: CAR 4b ORIGINAL TYPE CERTIFICATE NO. FAA APPROVAL 4425 Original signed by Walter J. O'Toole Supplemental Type Certificate NO.

SIGNATURE 8A3-666 OF APPROVAL JADe 30, 1961 Walter J. O'Toole Chief, Engineering and Manufacturing Branch Amended: November 1, 1962 TITLE U.S. GOVERNNENT PRINTING OFFICE FORM FAA-2417 (5-59)

## Every issue (2)

- November 1, 1962: Amended, Current. [certificate](https://openairdocs.org/files/sha256/b5/d8/b5d884d8f5b4a2a8ab4f894098b0a69cac4e0945c2c1446079d5981ad65568a1)
- June 30, 1961: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/73/b9/73b9269b40ef43fdbac170d2dee20b90d7d14618180076a4b5f303b4ec532dca)

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