# STC SA2377WE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: United Airlines Inc, United States
- Description: Installation of Collins Radio Company INS - 61B inertial navigation system.
- Applied: June 8, 1971
- Status date: November 30, 2011
- 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/f7/2a/f72a3ee9e3384a500cf1c712b5ee91b931a8a0f3ebbbd4c5079501e873c16501
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9258E2DDBA16A863862579980067F060.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA2377WE

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company DC-8-62 ([TCDS 4A25](https://openairdocs.org/tcds/4A25))

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

600 Jefferson Street Houston, Texas 77002 Part 4b of the Civil Air Regulations dated December 31, 1953 (See Type Certificate Data Sheet 4A25).

4A25

Boeing

DC-8-62 Description of Type Design Change: Installation of a Collins Radio Company INS – 61B Inertial Navigation System in accordance with FAA Approved Appendix “A” of United Air Lines Report F- 1522, Collins Radio Navigation Service Bulletin No . 1 for the 916K-2 Control Display Unit (972-6550- 301, -401) and FAA Approved United Air Lines Airp lane Flight Manual Supplement to DACO Report 33162 dated October 15, 1971 or later FAA approved revisions.

Limitations and Conditions: This approval is limited to DC-8-62 airplanes which have been modified by Supplemental Type Certificate SA1926WE, dated 16 January 1970. This approval should not be extended to other specific airplanes of this mode l on which previously approved modifications are incorporated unless it is determined that the interrela tionship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of that airplane. If the holder agrees to permit another pers on to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

This certificate and the supporting data, which is the basis for approval, shall remain in effect until surrendered, suspended, revoked or a termination date is otherwise established by the Administrator of the Federal Aviation Administration.

Date of application: June 8, 1971

Date of issuance: June 30, 1971

Date reissued: November 30, 2011

Date amended: October 15, 1971;

December 7, 1971

( Signature) Haifa Haj-Eid Supervisor, Technical & Administrative Support Staff, Los Angeles Aircraft Certification Office ( Title)

NOTE:

**DO NOT DELETE THIS PAGE.**

**DO NOT ADD ANY DATA TO THIS PAGE.**

**THIS PAGE IS FOR PAGE NUMBERING PURPOSES, PLEASE DISCARD PRINTED COPY.**

## Every issue (1)

- November 30, 2011: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/f7/2a/f72a3ee9e3384a500cf1c712b5ee91b931a8a0f3ebbbd4c5079501e873c16501)

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