# STC ST56CH-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: AlliedSignal Aerospace Co, United States
- Description: Installation of a Bendix TCAS II system. (1329 series Modified by STC SA2326SW)
- Status date: May 5, 1993
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 2A15](https://openairdocs.org/tcds/2A15)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C6A59EF9E33FD1CD85256CC300036093.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST56CH-D

## ADs that name it (0)

None.

## Approved models (2)

- Lockheed Aircraft Corporation 1329 Series ([TCDS 2A15](https://openairdocs.org/tcds/2A15))
- Lockheed Aircraft Corporation 1329-25 ([TCDS 2A15](https://openairdocs.org/tcds/2A15))

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