# STC SA8048NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Northrop Grumman Systems Corporation, United States
- Description: Installation of a Litton LTN-92 intertial navigation system (INS).
- Applied: September 20, 1994
- Status date: April 12, 2016
- Product: Aircraft, Large Airplane
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS A22WE](https://openairdocs.org/tcds/A22WE)
- Certificate PDF: https://openairdocs.org/files/sha256/35/39/3539f84ce2b1096d8c1f083b9cf65a7c26f7cfe35c735610f0c7dc88fcffb918
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FBF1AB48CBCAA75786257FA2006C7E4B.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA8048NM

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company DC-10-40 ([TCDS A22WE](https://openairdocs.org/tcds/A22WE))

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

This Certificate issued to Northrop Grumman Systems Corporation 21240 Burbank Blvd.

Woodland Hills, California 91367-6675 Part 25 of the Federal Aviation Regulations Original Product Type Certificate Number :

A22WE The Boeing Company DC-10-40 Description of Type Design Change: Installation of a Litton LTN-92 Inertial Navigation System (INS) in accordance with FAA Approved Litton Top Drawing List No. 454050-10, Revision “N/C”, dated September 27, 1994, or later FAA approved revision. FAA approved Airplane Flight Manual Supplement No. 464182 for Douglas DC-10-40 airplane, dated December 8, 1994, or later FAA approved revision is required as part of this installation.

Limitations and Conditions: This approval should not be extended to other specific airplanes of this model series on which other than noted previously approved modifications are incorporated unless it is determined that the interrelationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of that 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 : September 20, 1994

Date of issuance : January 12, 1995

Date reissued : April 12, 2016

(Signature) Supervisor, Technical & Administrative Support Staff (Title)

NOTE:

**DO NOT DELETE THIS PAGE.**

**DO NOT ADD ANY DATA TO THIS PAGE.**

**THIS PAGE IS FOR PAGE NUMBERING PURPOSES, PLEASE DISCARD PRINTED COPY.**

Number (STC No.)

## Every issue (1)

- April 12, 2016: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/35/39/3539f84ce2b1096d8c1f083b9cf65a7c26f7cfe35c735610f0c7dc88fcffb918)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.