# STC SA2546SO

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: ABX Air Incorporated, United States
- Description: Approval of the Airborne Express Inc. Report No. RLD-001-8-9 dated April 21, 1989, containing the analytical substantiation for determining the landing distance performance for the airplane in the35 degree landing flap configuration.
- Status date: May 23, 1989
- 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/CAA9C9AB5818A47A85256CC200015F9C.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2546SO

## ADs that name it (0)

None.

## Approved models (1)

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

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.