What it approves
Installation of Litton Triple LTN-92 Inertial Navigation Systems (INS) and dual LTN-2001 Global Positioning Sensors (GPS).
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 Northrop Grumman Systems Corporation 21240 Burbank Blvd.
Woodland Hills, CA 91367-6675 Part 25* of the Federal Aviation Regulations.
(For Certification Basis see T. C. Data Sheet No. A20WE.)
A20WE
The Boeing Company
747-200B Series, 747-300 Series Description of Type Design Change: Installation of Litton Triple LTN-92 Inertial Navigation Systems (INS) and Dual LTN-2001 Global Positioning Sensors (GPS) in accordance with FAA approved Top Installation Drawing No. 454065-11, Revision “A”, dated May 30, 1996, or later FAA approved revision.
Litton Airplane Flight Manual Supplement, Document No. 464095, Revision “N/C”, FAA approved on July 8, 1996, or later FAA approved revision, is required as part of this installation.
Limitations and Conditions: The approval of this modification applies to the above noted aircraft model series only. This approval should not be extended to other aircraft of this model series on which other approved modifications are incorporated unless it is determined that the interrelationship between this change and any of those previously approved modifications will introduce no adverse effect upon the airworthiness of the aircraft. 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 : March 11, 1996
Date of issuance : July 8, 1996
Date reissued : March 30, 2015, February 22, 2016
Date amended : August 19, 1996, October 2, 1997
(Signature) Supervisor, Technical & 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 · 2
Every issue · 2
DRS keeps each issue of an STC as its own record, with its own certificate and attachments.
| Date | Status | Files |
|---|---|---|
| February 22, 2016 | Reissued, current | Certificate |
| March 30, 2015 | Reissued, earlier issue | Certificate |