# STC ST503CH

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: AeroControlex Group TransDigm Inc., United States
- Description: Installation of potable water air compressor, P/N 5105-017009.
- Status date: April 30, 1996
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A22WE](https://openairdocs.org/tcds/A22WE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/94FC98292853969085256CC300036056.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST503CH

## ADs that name it (0)

None.

## Approved models (3)

- McDonnell Douglas Corporation DC-10-10 ([TCDS A22WE](https://openairdocs.org/tcds/A22WE))
- McDonnell Douglas Corporation DC-10-30 ([TCDS A22WE](https://openairdocs.org/tcds/A22WE))
- McDonnell Douglas Corporation DC-10-40 ([TCDS A22WE](https://openairdocs.org/tcds/A22WE))

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