# STC SA1926WE

- Type: Supplemental type certificate
- Status: Current, Surrendered
- Holder: United Air Lines Inc, United States
- Description: Dual installation of A.C. Electronics Carousel IV INS units.
- Applied: April 10, 1969
- Status date: June 26, 2009
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 4A25](https://openairdocs.org/tcds/4A25)
- Certificate PDF: https://openairdocs.org/files/sha256/1d/51/1d51a480a514ba1580dc4e63b68e70d840d3a6a6f2b3ffa78fe9e95135215084
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/11B7DD75CB8CA73F862577DC00727309.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1926WE

## ADs that name it (0)

None.

## Approved models (1)

- McDonnell Douglas Corporation DC-8-61 ([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.

United States of America Department of Transportation Federal Aviation Administration Supplemental Cupe CertificatErificate

SURRENDERED Number: SA2926NE on 6-26-2009 This certificate issued to: San Francisco International Airport United Air Lines, inc.

San Francisco, California 94128 Part Ab of the CIVII Air Regulations.

Original Product Type Tentificate Number: 4A 25 Make: McDonnell Douglas Model: DC-8-61 and DC-8-62 Description of Type Design Change: IV, INS units in the Model DC-8-61 in accordance (Dual installation of the A,C. Electronics Carousel with Item 1 below and in the Model DC-8-62 in accordance with Items 2 or 3 below):

1. Sealed Appendix "c" of UAL Report #F-1366 and the UAL Supplement to the McDonnell Douglas Model DC-8-61, FAA Approved AFM DAC-33161 dated 27 May 1969.

2. Sealed Appendix "A" of UAL Report #F-1384 and the UAL Supplement to the McDonnell Douglas Model DC-8-62, FAA Approved AFM DAC-33162 dated 21 July 1969.

3. Sealed Appendix "A" of UAL Report #F-1384 modified by UAL's sealed COA 2-3498 ER #20 and the UAL Supplement to the McDonnell Douglas Model DC-8-62, FAA approved AFM DAC-33162 dated 16 JAN 1970 Limitations and Conditions: For cases 1 and 2 above the INS does not adversely affect other systems but cooling requirements prevent navigation solely being predicated on INS. Placards saying "INS NOT APPROVED FOR NAVIGATION" must be displayed below the CDU head. This approval should not be extended to other specific airplanes 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 irworthiness of that airplane

Date of Application: 10 ApF11 1969 Date Reissued:

Date of Issuance: 27 May 1969 Date Amended: 21 July 1969 16 JAN 1970 FEDERAL AVIATION Day divectionfith Administr Lippers TAMINISTRAIO Acting chief, Aircraft Engineering Division 47 FAA FORK 8110-2 (10-68)

## Every issue (1)

- June 26, 2009: Surrendered, Current. [certificate](https://openairdocs.org/files/sha256/1d/51/1d51a480a514ba1580dc4e63b68e70d840d3a6a6f2b3ffa78fe9e95135215084)

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