# STC SA2105SO

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Federal Express Corp, United States
- Description: Installation of the Single Litton LTN-92 Inertial Navigation System.
- Status date: April 30, 1987
- 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/E7B09D374A06E66B85256CC200000047.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2105SO

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 727-100 Series ([TCDS A3WE](https://openairdocs.org/tcds/A3WE))

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