# STC SA3464WE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Meggitt Safety Systems, Inc., United States
- Description: Installation of alternate Systron Donner lower engine fire/overheat detector system, P/N 1705-1, in place of approved P/N 1705 lower engine fire/overheat detector system. (727-200C)
- Applied: July 6, 1977
- Status date: July 28, 1999
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A3WE](https://openairdocs.org/tcds/A3WE)
- Certificate PDF: https://openairdocs.org/files/sha256/19/b2/19b2695a9dd2a1421356a08a429a4b5671bffd6bac751d289d0e905d7dfb3b85
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/83964CEF76877AE885256CC2000A9856.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3464WE

## ADs that name it (0)

None.

## Approved models (2)

- The Boeing Company 727 ([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: SA3464WE This certificate issued to: Meggitt Safety Systems, Inc.

1915 Voyager Avenue Simi Valley, California 93063-3349 Part 25 of the Federal Aviution Regulutions.

Original Product Type Certificate Number: A16WE Make: Boeing Model: 737-200 Series, 737-200C Series Description of Type Design Change: Installation of alternate Systron Donner lower engine fire/overheat detector system, P/N 1705-1, in place of approved P/N 1705 lower engine fire/overheat detector system in accordance with Systron Donner Top Drawing No. 5050, Revision 'C dated August 15, 1977 or later FAA-approved revisions.

Limitations and Conditions: The approval of this change in type design applies basically to the Boeing listed models only with Systron Donner P/N 1705 engine fire/overheat detector systems originally installed. This approval should not be extended to other specific airplanes of this model on which other 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 airplane. 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: July 6, 1977 Date Reissued: Dec. 12, 1995, Mar. 07, 1997 Date of Issuance: September 2, 1977 Date Amended: Jul. 28, 1999 FEDERAL AVIATIO By Direction of the Administrator Mihail a Muspe (Signature) TOMINISTRATO Manager, Technical & Administrative Support Staff, Los Angeles Aircraft Certification Office (Title)

FAA Form 6110-2 (10-68) Page 1 of 2

## Every issue (1)

- July 28, 1999: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/19/b2/19b2695a9dd2a1421356a08a429a4b5671bffd6bac751d289d0e905d7dfb3b85)

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