# STC SA4857NM

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Turbine Engine Consultants, Ltd, United States
- Description: Modification replaces Airesearch metal shaft coupling P/N 3300065-1 with Elco P/N 2241901, non-metallic coupling.
- Status date: March 26, 1990
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A1SO](https://openairdocs.org/tcds/A1SO)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1BD7FDE34E209DD585256CC2000E3F32.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4857NM

## ADs that name it (0)

None.

## Approved models (1)

- Lockheed Aircraft Corporation 382 ([TCDS A1SO](https://openairdocs.org/tcds/A1SO))

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