# STC SA3223SO

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Panasonic Avionics Corporation, United States
- Description: Installation of a Matsushita audio entertainment distribution system.
- Applied: October 16, 1991
- Status date: June 5, 2006
- Product: Aircraft, Large Airplane
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS A23WE](https://openairdocs.org/tcds/A23WE)
- Certificate PDF: https://openairdocs.org/files/sha256/7d/a8/7da85eca0469cb14c36c94a99feccc04e9cc1222557afbb3b3996d2a2de2aac2
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/245C61FAF391EDF286257A2C0067640A.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3223SO

## ADs that name it (0)

None.

## Approved models (4)

- Lockheed Martin Corporation L-1011-385-1 ([TCDS A23WE](https://openairdocs.org/tcds/A23WE))
- Lockheed Martin Corporation L-1011-385-1-14 ([TCDS A23WE](https://openairdocs.org/tcds/A23WE))
- Lockheed Martin Corporation L-1011-385-1-15 ([TCDS A23WE](https://openairdocs.org/tcds/A23WE))
- Lockheed Martin Corporation L-1011-385-3 ([TCDS A23WE](https://openairdocs.org/tcds/A23WE))

## 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.

NumberSA3223SO

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

Original ProductType Certificate Number: A23WE Make: Lockheed Model: L-1011 Series

Description of the Type Design Change: Installation of a Matsushita Audio Entertainment Distribution System in accordance with Matsushita Avionics System Drawing No. 14410000, Revision A, dated March 27, 1992, or later FAA approved revision.

Limitations and Conditions: 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 any of those other previously approved modifications will produce 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: October 16, 1991 Date reissued: March 3, 1993, June 5, 2006 Date of issuance: May 8, 1992 Date amended: June 5, 2006

(Signature)

Acting Manager, Seattle Aircraft Certification Office (Title)

## Every issue (1)

- June 5, 2006: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/7d/a8/7da85eca0469cb14c36c94a99feccc04e9cc1222557afbb3b3996d2a2de2aac2)

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