# STC SA2609SO

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Federal Express Corp, United States
- Description: Installation of Dual Collins FD-110 Flight Directors.
- Status date: August 14, 1989
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A3WE](https://openairdocs.org/tcds/A3WE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/25861E16ADDE06E885256CC20008C664.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2609SO

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 727-200 Series ([TCDS A3WE](https://openairdocs.org/tcds/A3WE))

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