# STC ST04668CH

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Honeywell Aerospace Inc., United States
- Description: Installation of Honeywell HCR-25 Cockpit Voice Recorder (CVR)
- Applied: June 24, 2025
- Status date: March 21, 2025
- Product: Aircraft, Large Airplane
- Certification basis: Part 25
- Data sheets: [TCDS A16WE](https://openairdocs.org/tcds/A16WE)
- Certificate PDF: https://openairdocs.org/files/sha256/a1/f0/a1f06ea63e1fd373a7338fff01052b354e735f960c2b9de8a6abdd444b07d4b3
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157302152820250428180907.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST04668CH

## ADs that name it (0)

None.

## Approved models (5)

- The Boeing Company 737-600 Series ([TCDS A16WE](https://openairdocs.org/tcds/A16WE))
- The Boeing Company 737-700 Series ([TCDS A16WE](https://openairdocs.org/tcds/A16WE))
- The Boeing Company 737-800 Series ([TCDS A16WE](https://openairdocs.org/tcds/A16WE))
- The Boeing Company 737-900 Series ([TCDS A16WE](https://openairdocs.org/tcds/A16WE))
- The Boeing Company 737-900ER Series ([TCDS A16WE](https://openairdocs.org/tcds/A16WE))

## What the certificate says

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

## Every issue (1)

- March 21, 2025: Issued, Current. [certificate](https://openairdocs.org/files/sha256/a1/f0/a1f06ea63e1fd373a7338fff01052b354e735f960c2b9de8a6abdd444b07d4b3)

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From OpenAirDocs.org, an independent open copy of FAA and NTSB data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.