# STC ST00218WI

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Midcoast Aviation Inc, United States
- Description: Installation of an AlliedSignal Mark VII ground proximity warning system with windshear.
- Status date: October 21, 1994
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A3EU](https://openairdocs.org/tcds/A3EU)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5DC05197C9978D3D85256CC2006A7179.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/ST00218WI

## ADs that name it (0)

None.

## Approved models (1)

- Raytheon Aircraft Company BAe.125 Series 800A (C-29A; U-125) ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))

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