What it approves
Remove existing 8 across business class seats in the C-Zone and replace them with larger 7 across business seats, reducing the seat count from 392 to 378 and increasing the pitch from 38 inches to 40 inches. This installation is in accordance with United Air Lines DAS-1-WE Approved Drawing List No. 2769 dated December 13, 1989, or later FAA approved revisions.
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 25* of the Federal Aviation Regulations. *See Type Certificate Data Sheet A20WE for Special Conditions.
Original Product Type Certificate Number : A20WE Make: Boeing Model: 747-400 Series Description of Type Design Change: Remove existing 8 across business class seats in the C-Zone and replace them with larger 7 across business seats, reducing the seat c ount from 392 to 378 and increasing the pitch from 38 inches to 40 inches. This installati on is in accordance with United Air Lines DAS-1-WE Approved Drawing List No. 2769 dated December 13, 1989, or later FAA approved revisions.
Limitations and Conditions: This approval should not be ex tended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined by the installer that the interrelationship between this change and any of those previously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft. This determination should include consideration of significant changes in weight distribution such as an increase in the fixed dispos able weight in the fuselage. 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.
Date of application : December 7, 1989
Date of issuance : December 13, 1989
Date reissued : November 30, 2011
( Signature) Haifa Haj-Eid Supervisor, Technical & Administrative Support Staff Los Angeles Aircraft Certification Office ( Title)
Transfer the ownership of Supplemental Type Certificate Number
to (Name of transferee)
(Address of transferee) (Number and street)
(City, State, and ZIP Code)
from (Name of grantor) (Print or type)
(Address of grantor) (Number and street)
(City, State, and ZIP Code)
Signature of grantor (In ink):
U.S. GPO 1987-763-28
ADs that name this STC · 0
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Approved models · 1
| Make | Model | Data sheet |
|---|---|---|
| The Boeing Company | 747-400 Series | A20WE |