What it approves
Modification of the oxygen system including the addition of a supply bottle, pressure relief valve, and a microphone in the smoke masks.
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.
United States Of America Department of Transportation - Federal Aviation Administration Supplemental Type Certificate This certificate has been reissued to replace the original certificate reported as lost.
This Certificate issued to United Aeronautical Corporation 7360 Laurel Canyon Blvd.
North Hollywood, California 91605 Part 4b of the Civil Air Regulations.
Effective October 1, 1949 and amendment 4b-2 dated August 25, 1955.
6A3 The Boeing Company R6D-1 Serial Number 43690 – One Only
Description of Type Design Change : Modification of the oxygen system including the addition of a supply bottle, pressure relief valve, and a microphone in the smoke masks in accordance with Aero Union Drawing List Number AU8100 dated April 22, 1977, or later sealed revision.
Limitations and Conditions : Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation made in Douglas Mo del R6D-1 Serial Number 43690 only.
Date of application : April 22, 1977
Date of issuance : May 19, 1977
Date reissued : April 15, 2015
(Signature) Supervisor, Technical and Administrative Support Staff Los Angeles Aircraft Certification Office (Title)
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 | Navy R6D-1 | 6A3 |