STC SA5073NM

Supplemental type certificate · Northrop Grumman Systems Corporation

Holder
Northrop Grumman Systems Corporation · United States
Status
Current · Reissued
Status date
February 22, 2016
Applied
January 22, 1991
Product
Aircraft · Large Multi-Engine
Certification basis
Part 21, Part 25
Data sheet
TCDSA22WE

From FAA DRS, with our copy of the certificate PDF. DRS record last changed December 6, 2025.

What it approves

Installation of triple Litton LTN-92 inertial navigation system.

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. A22WE) Original Product Type Certificate Number :

A22WE

The Boeing Company

DC-10-30 Description of Type Design Change : Installation of Triple Litton LTN-92 Inertial Navigation Systems in accordance with FAA approved Litton Aero Products Top Drawing List No. 454050-08, Revision N/C or later FAA approved revision of this drawing.

Litton Systems, Inc. Airplane Flight Manual Supplement, Document No. 464036, FAA Approved on May 16, 1991, or later FAA approved revision, is required as part of this installation.

Limitations and Conditions : The approval of this change in type desi gn applies only to the above listed models airplanes. This approval should not be extended to other aircraft of this model on which other approved previously approved modifications are incorporated unless it is found by the installer that the interrelatio nship 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 : January 22, 1991

Date of issuance : May 21, 1991

Date reissued : March 30, 2015, February 22, 2016

(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.

No AD in this release names this STC

Approved models · 1

MakeModelData sheet
The Boeing CompanyDC-10-30A22WE

Every issue · 2

DRS keeps each issue of an STC as its own record, with its own certificate and attachments.

DateStatusFiles
February 22, 2016Reissued, currentCertificate
March 30, 2015Reissued, earlier issueCertificate