# STC SA3984NM

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: California Precision Hydraulics, Inc, United States
- Description: Installation of piston-shoe subassembly, P/N 700003.
- Status date: May 5, 1997
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/02961E6EDAF41E6585256CC2000C5C43.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3984NM

## ADs that name it (0)

None.

## Approved models (5)

- The Boeing Company 747-200B Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-200C Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-200F Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-300 Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747SR Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))

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