# STC SA3629WE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Northrop Grumman Systems Corporation, United States
- Description: Installation of either single LTN-51 or LTN-72
- Applied: March 23, 1978
- Status date: April 12, 2016
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A12EA](https://openairdocs.org/tcds/A12EA)
- Certificate PDF: https://openairdocs.org/files/sha256/9c/dc/9cdc4a8c53bd50891c23eeda12b66848239d0a412414529d3dd284ebca3cb319
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/25A62AAE5D7EE72486257FA1006D9C86.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3629WE

## ADs that name it (0)

None.

## Approved models (1)

- Gulfstream Aerospace Corporation G-1159 ([TCDS A12EA](https://openairdocs.org/tcds/A12EA))

## 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.

FAA Form 8110-2(10-68) Page 1 of 2 Number SA3629WE This Certificate issued to Northrop Grumman Systems Corporation 21240 Burbank Blvd.

Woodland Hills, CA 91367-6675

Part 4b of the Civil Air Regulations.

(For Certification Basis see T.C. Data Sheet A12EA) Original Product Type Certificate Number :

A12EA

Grumman

G-1159 Description of Type Design Change: Installation of either single LTN -51 or LTN -72 in accordance with FAA Sealed Litton Top Drawing 454052-05 Rev. “A” or later FAA Sealed revision.

Litton Airplane Flight Manual Supplement to Grumman Gulfstream II Flight Manual, FAA approve d on April 12, 1978, or later FAA approved revision, is required as part of this modification.

Limitations and Conditions : The approval of this change in type design applies basically to the Grumman Model G-1159 airplanes only. This approval should not be extended to other aircraft of these models on which other previously approved modifications are incorporated unless it is determined by the installer 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. A copy of this certificate must be maintained as part of the permanent records for the modified aircraft. If the holder agrees to permit another person to use this certificate t o alter the product, the holder shall give the other person written evidence of that permission.

Date of application: March 23, 1978

Date of issuance: April 14, 1978

Date reissued: April 12, 2016

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

## Every issue (1)

- April 12, 2016: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/9c/dc/9cdc4a8c53bd50891c23eeda12b66848239d0a412414529d3dd284ebca3cb319)

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