# STC ST00022MC

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: NAVAIRSYSCOM, United States
- Description: Installation of Raytheon APX-119 IFF Transponder.
- Applied: December 20, 2007
- Status date: March 4, 2011
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A6WE](https://openairdocs.org/tcds/A6WE)
- Certificate PDF: https://openairdocs.org/files/sha256/43/00/4300c3eef5bb0bb291fa70b9411664213e01e836b2fbb71d81ae4265865c23af
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/712A22237243E26686257855006BFD2F.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/ST00022MC

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company DC-9-32F (C-9B) ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))

## What the certificate says

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

## Every issue (2)

- March 4, 2011: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/43/00/4300c3eef5bb0bb291fa70b9411664213e01e836b2fbb71d81ae4265865c23af)
- March 6, 2009: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/66/92/66927f82ecc351f156b4d7840dafc51ccbe4c762337da0797479ad45af475627)

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