# STC ST78CH

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Duncan Aviation, United States
- Description: Installation of a Cessna auto-temp sensor assembly.
- Status date: June 28, 1993
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A27CE](https://openairdocs.org/tcds/A27CE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FD32116B2FED917085256CC3000374A5.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST78CH

## ADs that name it (0)

None.

## Approved models (2)

- The Cessna Aircraft Company 501 ([TCDS A27CE](https://openairdocs.org/tcds/A27CE))
- The Cessna Aircraft Company 551 ([TCDS A27CE](https://openairdocs.org/tcds/A27CE))

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