# STC SA3-644

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Product Development Group, United States
- Description: Adams Rite 2302 rev. C-2 handle on inside of cabin door.
- Status date: January 1, 1960
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1A10](https://openairdocs.org/tcds/1A10)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A2EB658EFAAF0EC1862570CB005A04FE.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3-644

## ADs that name it (0)

None.

## Approved models (1)

- The New Piper Aircraft Inc. PA-23 Series ([TCDS 1A10](https://openairdocs.org/tcds/1A10))

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