# STC SA2318SO

- Type: Supplemental type certificate
- Status: Current, Surrendered
- Holder: ABX Air Incorporated, United States
- Description: Installation of the door warning system.
- Applied: November 2, 1987
- Status date: April 24, 2013
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 4A25](https://openairdocs.org/tcds/4A25)
- Certificate PDF: https://openairdocs.org/files/sha256/6a/ea/6aeaaa62daf2e78a270605468587b88207eddf4e134fd79f15f4667e1c08d688
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DB3DDDAD4C81E8D786257B9C006F23E7.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2318SO

## ADs that name it (0)

None.

## Approved models (3)

- McDonnell Douglas Corporation DC-8-61 ([TCDS 4A25](https://openairdocs.org/tcds/4A25))
- McDonnell Douglas Corporation DC-8-63 ([TCDS 4A25](https://openairdocs.org/tcds/4A25))
- McDonnell Douglas Corporation DC-8-63F ([TCDS 4A25](https://openairdocs.org/tcds/4A25))

## What the certificate says

The certificate is a scan without a text layer; open the PDF to read it.

## Every issue (2)

- April 24, 2013: Surrendered, Current. [certificate](https://openairdocs.org/files/sha256/6a/ea/6aeaaa62daf2e78a270605468587b88207eddf4e134fd79f15f4667e1c08d688)
- March 9, 1995: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/6a/ea/6aeaaa62daf2e78a270605468587b88207eddf4e134fd79f15f4667e1c08d688)

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