# STC SA4993NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Panasonic Avionics Corporation, United States
- Description: Installation of Matsushita Avionics Systems (MAS) passenger audio entertainment system. (757-212)
- Applied: July 24, 1990
- Status date: June 5, 2006
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A2NM](https://openairdocs.org/tcds/A2NM)
- Certificate PDF: https://openairdocs.org/files/sha256/34/cb/34cb0661faac48dd22868cedbc72aa192154797e8382c7611be9e41d21458641
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1F055CCA2B25B3CE862579C10079A08D.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4993NM

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 757-200 Series ([TCDS A2NM](https://openairdocs.org/tcds/A2NM))

## 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: SA4993NM This certificate issued to: Panasonic Avionics Corporation 22333 29hh Drive SE Bothell, WA 98021 Part 25 of the Federal Aviation Regulations.

Original Product - Type Certificate Number: A2NM Make: Boeing Model: 757-212 Description of Type Design Change: Installation of Matsushita Avionics Systems (MAS) Passenger Audio Entertainment System defined by the documents listed on Approved Model List SA4993NM.

Limitations and Conditions: The approval of this change applies to the aircraft models listed on approved model list number SA4993NM and should not be extended to other specific models of these airplanes on which other previously approved modifications have been incorporated, unless it is determined that the interrelationship between this change and any of those previously approved modifications will introduce no adverse effects upon the airworthiness of that airplane. A copy of this Certificate shall be maintained as a part of the permanent 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 24, 1990 Date Reissued: March 3, 1993, June 5, 2006 Date of Issuance: November 21, 1990 Date Amended: June 5, 2006

FEDERAL AVIATION TOMMIS T RATION (Signature) Acting Manager, Seattle Aircraft Certification Office (Title)

Issue Date: November 21, 1990 Reissued Date: June 5, 2006 Comments MAS System Drawing AML Amendment Date Matsushita Avionics Systems (MAS) Passenger Audio Entertainment System AFM Supplement Number Date APPROVED MODEL LIST (AML) NO. SA4993NM Rev.

FOR Panasonic Avionics Corporation Number MAS-10039-02-0001 FAA Approved Drawings/ Drawing List Number MAS - A00016 Certification Original Basis for Type Type Certificate Number: Alteration A2NM FAR 25 Acting Manager, Seattle Aircraft Certification Office Aircraft Make and Model Boeing 757-212 Item FAA Approved:

## Every issue (1)

- June 5, 2006: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/34/cb/34cb0661faac48dd22868cedbc72aa192154797e8382c7611be9e41d21458641)

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