# STC SA978GL-D

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: AlliedSignal Aerospace Co, United States
- Description: Relocation of the EGT compensating resistors.
- Status date: May 1, 1990
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A21EU](https://openairdocs.org/tcds/A21EU)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/106955232ADD196185256CC2005A7262.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA978GL-D

## ADs that name it (0)

None.

## Approved models (1)

- British Aerospace (Scotland) HP Jetstream Model 3101 ([TCDS A21EU](https://openairdocs.org/tcds/A21EU))

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