# STC ST09330SC

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Avionics Engineering Services, United States
- Description: Installation of AlliedSignal/Bendix CAS 81 TCAS II system with dual AlliedSignal/Bendix TRA-67 Mode-S transponders.
- Status date: August 30, 2000
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A3WE](https://openairdocs.org/tcds/A3WE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0A44EEB038CD2C1785256CC300035DF4.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST09330SC

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 727-100 Series ([TCDS A3WE](https://openairdocs.org/tcds/A3WE))

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