# STC SA978CE-D

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Boeing Company, United States
- Description: Cargo handling and power drive system.
- Status date: October 28, 1977
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D7416C64286FB06C85256CC2005A7261.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA978CE-D

## ADs that name it (0)

None.

## Approved models (2)

- The Boeing Company 747-100 Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-200 Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))

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