# STC ST395SO

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Lockheed Martin Aeronautics Company, United States
- Description: 100 inch increase in fuselage length, installation of Allison 501-D22A engines in lieu of 501-D22 engine, and miscellaneous structural and equipment changes incidental to the primary modifications.
- Status date: February 10, 1989
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A1SO](https://openairdocs.org/tcds/A1SO)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/04B560C0C22BCD3A85256CC300035FEA.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/ST395SO

## ADs that name it (0)

None.

## Approved models (1)

- Lockheed Aircraft Corporation 382B ([TCDS A1SO](https://openairdocs.org/tcds/A1SO))

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