# STC ST239CH

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Vickers Electromechanical Div, United States
- Description: Install Vickers Model 6315K and6315L power drive units.
- Status date: August 9, 1994
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A1NM](https://openairdocs.org/tcds/A1NM)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/BB0AF00A2AAF27DC85256CC300035F85.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST239CH

## ADs that name it (0)

None.

## Approved models (2)

- The Boeing Company 767-200 Series ([TCDS A1NM](https://openairdocs.org/tcds/A1NM))
- The Boeing Company 767-300 Series ([TCDS A1NM](https://openairdocs.org/tcds/A1NM))

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