# STC SA3499NM - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Meggitt Safety Systems, Inc., United States - Description: Installation of Systron Donner Smoke Detectors Part Number 7740 - Applied: February 27, 1987 - Status date: September 11, 2013 - Product: Aircraft, Large Airplane - Certification basis: Part 21 - Data sheets: [TCDS A3WE](https://openairdocs.org/tcds/A3WE) - Certificate PDF: https://openairdocs.org/files/sha256/4e/99/4e9988d766400858e1d4290736195dc45203c00eab18f5a009cb63128d5c9e8c - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2A9B74706C53DF1A86257BE800623034.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA3499NM ## ADs that name it (0) None. ## Approved models (1) - The Boeing Company 727-200F Series ([TCDS A3WE](https://openairdocs.org/tcds/A3WE)) ## 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 has been reissued to replace the original certificate reported as lost. This Certificate issued to Meggitt Safety Systems, Inc. 1915 Voyager Avenue Simi Valley, California 93063-3349 Part 4b* of the Civil Air Regulations. *Certification basis is set forth in Type Certificate Data Sheet A3WE. Original Product Type Certificate Number A3WE Make : Boeing Model : 727-200F Series Description of Type Design Change: Installation of Systron Donner Smoke Detectors Part Number 7740 on Boeing 727-200F Series aircraft in accordance with Systron Donner Control Drawing 7940, Revision “B”, dated October 20, 1987, or later FAA approved revision. Limitations and Conditions: This installation should not be incorporated in any aircraft unless it is determined that the interrelationship between this installation and any previously approved configuration will not introduce any adverse effect upon the airworthiness of the aircraft. A mixed configuration of this installation and that of the existing smoke detector installation is not allowed. A copy of the STC must be included in the permanent records of the modified 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. This certificate and the supporting data, which is the basis for approval, shall remain in effect until surrendered, suspended, revoked or a termination date is otherwise established by the Administrator of the Federal Aviation Administration. Date of application : February 27, 1987 Date of issuance : November 23, 1987 Date reissued : December 12, 1995, March 7, 1997, July 28, 1999, September 11, 2013 (Signature) Manager, Cabin Safety, Mechanical & Environmental Systems Branch Los Angeles Aircraft Certification Office (Title) Transfer the ownership of the Supplemental Type Certificate Number to (Name of transferee) (Address of transfer) (Number and street) (City, State, and Zip code) from (Name of grantor) (Print or type)__ (Address of grantor) (Number and street) (City, State, and Zip code) Extent of Authority (if licensing agreement): Signature of grantor (In ink): U.S. GPO 1987-763-28 ## Every issue (2) - September 11, 2013: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/4e/99/4e9988d766400858e1d4290736195dc45203c00eab18f5a009cb63128d5c9e8c) - July 28, 1999: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/a2/4e/a24e752f52ff64d28570c6edba67c16265d5389add9987ea3ded023a0b2b919c) --- 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.