# STC ST00038WI

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Duncan Aviation, Inc, United States
- Description: Installation of Bendix/King CAS-81 traffic alert and collision avoidance system (TCAS II) and MST-67A Mode S transponder system.
- Applied: November 13, 1992
- Status date: March 21, 1994
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A10CE](https://openairdocs.org/tcds/A10CE)
- Certificate PDF: https://openairdocs.org/files/sha256/76/96/7696f295887ad8e98348f1576e14e2944d9f9e3b6f2558abb39cd2b857e4c1d1
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F79976CE9FF2671B86258160005858B1.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/ST00038WI

## ADs that name it (0)

None.

## Approved models (4)

- Learjet Inc. Learjet 35 ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))
- Learjet Inc. Learjet 35A (C-21A) ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))
- Learjet Inc. Learjet 36 ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))
- Learjet Inc. Learjet 36A ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))

## What the certificate says

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

## Every issue (1)

- March 21, 1994: Amended, Current. [certificate](https://openairdocs.org/files/sha256/76/96/7696f295887ad8e98348f1576e14e2944d9f9e3b6f2558abb39cd2b857e4c1d1)

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