# STC SA3574NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Ultra Enterprises, United States
- Description: Installation of crew entrance door.
- Status date: January 19, 1990
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A2PC](https://openairdocs.org/tcds/A2PC)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DC610DCF61C3DB4D85256CC2000A995F.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3574NM

## ADs that name it (0)

None.

## Approved models (1)

- Mitsubishi Heavy Industries Ltd. MU-2B-35 ([TCDS A2PC](https://openairdocs.org/tcds/A2PC))

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