# STC SA2725SO

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Honeywell International Inc, United States
- Description: Installation of CAS-81 TCAS II system.
- Applied: February 16, 1990
- Status date: January 19, 2022
- Product: Aircraft, Large Airplane
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS A16WE](https://openairdocs.org/tcds/A16WE)
- Certificate PDF: https://openairdocs.org/files/sha256/0d/22/0d22cf97df1168edca29a865a32d200d3b60a065bdb695bbc8652e6fcd25ed7e
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/014418F319058991862587F20058A630.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2725SO

## ADs that name it (0)

None.

## Approved models (2)

- The Boeing Company 737-300 Series ([TCDS A16WE](https://openairdocs.org/tcds/A16WE))
- The Boeing Company 737-500 Series ([TCDS A16WE](https://openairdocs.org/tcds/A16WE))

## 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.

FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page 1 of ___

FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page 2 of ___

## Every issue (1)

- January 19, 2022: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/0d/22/0d22cf97df1168edca29a865a32d200d3b60a065bdb695bbc8652e6fcd25ed7e)

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