# STC SA4959NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Panasonic Avionics Corporation, United States
- Description: Installation of Matsushita passenger entertainment system/passenger service system number MAS-00003. (747-237)
- Applied: January 11, 1990
- Status date: June 5, 2006
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE)
- Certificate PDF: https://openairdocs.org/files/sha256/da/42/da42beebf82284858bc96155a1a68e7e720fead1fe3f1ee7e50dbf8ac664fc2a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A1BB53C3962673CE862579C100799A48.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4959NM

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 747-200B Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))

## 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: SA4959NM This certificate issued to: Panasonic Avionics Corporation 22333 29h Drive SE Bothell, WA 98021 Part 25 of the Federal Aviation Regulations.

Original Product - Type Certificate Number: A20WE Make: Boeing Model: 747-237 Description of Type Design Change: Installation of a Matsushita Avionics Systems (MAS) Passenger Entertainment System/Passenger Service System Number MAS-00003 in accordance with FAA approved MAS document number WS-00003, Revision B, dated June 29, 1990 and MAS Top Level System Drawing Number MAS 00003, sheet 1, Revision B, dated April 6, 1990 and sheet 2, Revision E, dated July 18, 1990, or later FAA Limitations and Conditions: Approval of this change in type design applies to the above model aircraft only.

This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined that the relationship between this change and any of those other previously approved modifications, including changes in type design, 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 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: January 11, 1990 Date Reissued: March 3, 1993, June 5, 2006 Date of Issuance: July 23, 1990 Date Amended: June 5, 2006 FEDERAL AVIATION a of the laministrator TOMINIST RATION (Signature) Acting Manager, Seattle Aircraft Certification Office (Title)

**EAA FORM 8110-2(10-68)**

## Every issue (1)

- June 5, 2006: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/da/42/da42beebf82284858bc96155a1a68e7e720fead1fe3f1ee7e50dbf8ac664fc2a)

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