# STC ST00131AT

- Type: Supplemental type certificate
- Status: Current, Surrendered
- Holder: Page AvJet Corp, United States
- Description: Installation of dual Honeywell Mode S transponder with TCAS provisions.
- Status date: July 9, 2008
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE)
- Certificate PDF: https://openairdocs.org/files/sha256/0a/4b/0a4bde46b059ccbf95a339eb86d8d56154c3eaf29868113caa95cc5ec7073477
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8817F0025D63F4A5862574C10075FD81.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST00131AT

## ADs that name it (0)

None.

## Approved models (3)

- The Boeing Company 747-100 Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-200 Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747SP Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))

## What the certificate says

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

## Every issue (1)

- July 9, 2008: Surrendered, Current. [certificate](https://openairdocs.org/files/sha256/0a/4b/0a4bde46b059ccbf95a339eb86d8d56154c3eaf29868113caa95cc5ec7073477)

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