# STC SA2305SO

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: ABX Air Incorporated, United States
- Description: Installation of dual KNS-660 FMS.
- Applied: November 2, 1987
- Status date: September 9, 1992
- Product: Aircraft, Large Multi-Engine
- Data sheets: [TCDS 4A25](https://openairdocs.org/tcds/4A25)
- Certificate PDF: https://openairdocs.org/files/sha256/cf/0f/cf0f118bbc1778abb7d6a4c8d16de802917e71dcd6e492559a321c2fe084e9d9
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID135838645720230310161404.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2305SO

## ADs that name it (0)

None.

## Approved models (2)

- 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))

## What the certificate says

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

## Every issue (1)

- September 9, 1992: Amended, Current. [certificate](https://openairdocs.org/files/sha256/cf/0f/cf0f118bbc1778abb7d6a4c8d16de802917e71dcd6e492559a321c2fe084e9d9)

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