# STC ST00234DE-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Learjet Inc., United States
- Description: Installation of a Collins TCAS-94 TCAS II with dual TDR-94D transponders and dual VSI/TRA displays.
- Status date: June 13, 2002
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A21EA](https://openairdocs.org/tcds/A21EA)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DF7D990467F898AE85256CC2006A719C.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST00234DE-D

## ADs that name it (0)

None.

## Approved models (5)

- Bombardier Inc. CL-600-1A11 (CL-600) ([TCDS A21EA](https://openairdocs.org/tcds/A21EA))
- Bombardier Inc. CL-600-2A12 (CL-601) ([TCDS A21EA](https://openairdocs.org/tcds/A21EA))
- Bombardier Inc. CL-600-2B16 (CL-601-3A) ([TCDS A21EA](https://openairdocs.org/tcds/A21EA))
- Bombardier Inc. CL-600-2B16 (CL-601-3R) ([TCDS A21EA](https://openairdocs.org/tcds/A21EA))
- Bombardier Inc. CL-600-2B16 (CL-604) ([TCDS A21EA](https://openairdocs.org/tcds/A21EA))

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