# STC ST09082AC-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Aviation Systems Standards, Aircraft Maintenance and Engineering Division AVN-300, United States
- Description: Installation of an Auxiliary Cockpit speaker system, consisting of two 
Baker Electronics, Inc., Model M1093, summing amplifiers, and two Quam 
Nichols Company aviation speakers PIN 52C5FR.
- Applied: June 4, 1999
- Status date: October 19, 2001
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A3EU](https://openairdocs.org/tcds/A3EU)
- Certificate PDF: https://openairdocs.org/files/sha256/5e/f6/5ef6f92dea47800576465fa217fab3e0d3ae3c8010c7fa6e5a44d3abc76a9621
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/838A5F0834F4B457862581EC005DA51D.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/ST09082AC-D

## ADs that name it (0)

None.

## Approved models (1)

- Textron Aviation Inc. BAe.125 Series 800A ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))

## What the certificate says

The certificate is a scan without a text layer; open the PDF to read it.

## Every issue (1)

- October 19, 2001: Issued, Current. [certificate](https://openairdocs.org/files/sha256/5e/f6/5ef6f92dea47800576465fa217fab3e0d3ae3c8010c7fa6e5a44d3abc76a9621)

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