# STC ST00370LA

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Northrop Grumman Systems Corporation, United States
- Description: Installation of Litton Dual LTN-410 Flight Management Systems (FMS) with embedded Global Positioning Sensors (GPS) receivers
- Applied: September 11, 1996
- Status date: February 22, 2016
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS A16WE](https://openairdocs.org/tcds/A16WE)
- Certificate PDF: https://openairdocs.org/files/sha256/a4/68/a46801a7cb2aa0792b6a5d1b0d12294549426140eb36ca0bbfe86c8224dc4260
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/456AD215B9FBD6B386257F6B006692C5.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/ST00370LA

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 737-200 Series ([TCDS A16WE](https://openairdocs.org/tcds/A16WE))

## 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, CA 91367-6675 Part 25* of the Federal Aviation Regulations.

(For Certification Basis see T. C. Data Sheet No. A16WE.)

A16WE

The Boeing Company

737-200 (T43A) Series Description of Type Design Change: Installation of Litton Dual LTN-410 Flight Management Systems (FMS) with embedded Global Positioning Sensors (GPS) receivers in accordance with FAA approved Top Installation Drawing No. 452839-06, Revision “A”, dated April 23, 1997, or later FAA approved revision.

Litton Airplane Flight Manual Supplement, Document No. D185-20161-1, Revision “N/C”, FAA approved on May 13, 1997, 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 specific 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 : September 11, 1996

Date of issuance : May 15, 1997

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

(Signature) Supervisor, Technical & Administrative Support Staff Los Angeles Aircraft Certification Office (Title)

## Every issue (2)

- February 22, 2016: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/a4/68/a46801a7cb2aa0792b6a5d1b0d12294549426140eb36ca0bbfe86c8224dc4260)
- March 30, 2015: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/d5/75/d57553d581cddd40ed307576f072023a0d5560f3c6e860fe162fe83f69552df6)

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