What it approves
Installation of three Litton LTN-92 inertial naviagation systems (INS).
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.
Number SA3748NM
This Certificate issued to
Part 25 of the Federal Aviation Regulations.
(For certification basis see T.C. Date Sheet A20WE)
Description of Type Design Change: Installation of three (3) Litton LTN-92 Inertial Navigation System (INS), in accordance with FAA Approved Top Installation Drawing 454065-04, Revision N/C, or later FAA approved revisions of this drawing.
Litton Airplane Flight Manual Supplement, APD 1-88, revision N/C, dated May 6, 1988, or later FAA approved revision, is required with this approval.
Limitations and Conditions: This type design change applies only when three Litton LTN-72, LTN- 72R, or Delco CIV Inertial Navigation Systems were installed and were FAA approved. When using installation data from these approvals, the VOR/DME update capability shall be an installation option. This installation should not be incorporated in any aircraft unless it is determined that the interrelationship between this change and any previously approved configuration will not introduce any 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.
Northrop Grumman Systems Corporation 21240 Burbank Blvd.
Woodland Hills, CA 91367-6675 A20WE
The Boeing Company
747-200, -300 Series Original Product Type Certificate Number :
Date of application : August 28, 1987
Date of issuance : May 10, 1988
Date reissued : March 30, 2015, February 22, 2016
Date amended : February 16, 1994, March 31, 1994, April 24, 2000, December 11, 2000
(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 · 4
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 |