What it approves
Installation of dual Delco C-IV inertial navigation systems.
What the certificate says
From the PDF’s text layer, without the form’s printed wording. Layout and order may differ; the PDF is the record.
This Certificate issued to United Air Lines, Inc.
600 Jefferson Street Houston, Texas 77002
Part 4b of the Civil Air Regulations dated December 31, 1953 and amended July 5, 1966.
4A25
Boeing
DC-8-61 Description of Type Design Change: Installation of dual Delco C-IV Inertial Navigation Systems in accordance with COA 2-4514 and Master Drawing List.
Limitations and Conditions: This approval is limited to DC-8-61 airplanes. 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 airworthiness of that airplane. If the holder agrees to permit another person 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 17, 1974
Date of issuance: January 22, 1975
Date reissued: November 30, 2011
( Signature) Haifa Haj-Eid Supervisor, Technical & Administrative Support Staff Los Angeles Aircraft Certification Office ( Title)
NOTE:
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THIS PAGE IS FOR PAGE NUMBERING PURPOSES, PLEASE DISCARD PRINTED COPY.
ADs that name this STC · 0
An AD can apply because an STC is installed, or mention one in its text.
Approved models · 1
| Make | Model | Data sheet |
|---|---|---|
| The Boeing Company | DC-8-61 | 4A25 |