# STC ST09451SC

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Aramco Associated Co, United States
- Description: Installation of AlliedSignal Mark V Enhanced (EGPWS) interface with the WXR-700X Weather Radar equipment.
- Status date: February 1, 1999
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 4A25](https://openairdocs.org/tcds/4A25)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8F2C08D6A12D416D85256CC300035E27.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/ST09451SC

## ADs that name it (0)

None.

## Approved models (1)

- McDonnell Douglas Corporation DC-8-72 ([TCDS 4A25](https://openairdocs.org/tcds/4A25))

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