# STC SH1657SW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Northrop Worldwide Aircraft, United States
- Description: Full length, hard surface, skid shoes on standard skid landing gear.
- Status date: June 18, 1973
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H3WE](https://openairdocs.org/tcds/H3WE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5365F33C7D28B1E285256CC2005C2ED7.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SH1657SW

## ADs that name it (0)

None.

## Approved models (4)

- MD Helicopter Inc. 369A (Army OH-6A) ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))
- MD Helicopter Inc. 369H ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))
- MD Helicopter Inc. 369HE ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))
- MD Helicopter Inc. 369HS ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))

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