# STC SA5105NM

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: AlliedSignal Avionics Inc, United States
- Description: Installation of the Mark VII ground proximity and windshear warning system.
- Applied: March 12, 1990
- Status date: March 15, 1995
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A3WE](https://openairdocs.org/tcds/A3WE)
- Certificate PDF: https://openairdocs.org/files/sha256/c2/34/c234c30ec017577c2d1642d4fbb69ee2edc80df7c49caf784499d02ca48774f2
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/16FDC5D731A96935862579C1007A64BF.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA5105NM

## ADs that name it (0)

None.

## Approved models (2)

- The Boeing Company 727-100 Series ([TCDS A3WE](https://openairdocs.org/tcds/A3WE))
- The Boeing Company 727-200 Series ([TCDS A3WE](https://openairdocs.org/tcds/A3WE))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA5105NM This certificate issued to: AlliedSignal Avionics, Inc.

15001 N.E. 36th Street, P. O. Box 97001 Redmond, Washington 98073 Purt 4b of the Civil Aviation Regulations:

Original Product - Type elificate Number: AWE Make: Boeing Model: 727-100,-200 Description of Type Design Change: Installation of the Mark VII Ground Proximity and Windshear Warning System per AlliedSignal Top Drawing List 960-2161, Rev. AD, dated March 28, 1994 or later FAA- approved revisions.

aircraft equipped with those engines listed on page 3. The Mark VII system with Ground Proximity only, i.e. Limilalions and bindilions: The approval of this change in type design applies to the above model without Windshear Warning are approved for all engine types. This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined by the installer that the interrelationship between this change and other previously approved modifications (i.e. hushkits) will introduce no adverse affect upon the airworthiness of the aircraft. A copy of this Certificate, Continuation Sheet, and (See page 3) (10-69) PAGE4 OF4 PAGES FAA AC B2-03578

## Every issue (1)

- March 15, 1995: Amended, Current. [certificate](https://openairdocs.org/files/sha256/c2/34/c234c30ec017577c2d1642d4fbb69ee2edc80df7c49caf784499d02ca48774f2)

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