# STC SE87WE

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Chromizing Company, United States
- Description: Replace the airfoils on P&WA P/Ns 505351, 536751, 665951, 665851 first stage turbine nozzle guid vanes on P&WA engine models listed.
- Status date: December 21, 1977
- Product: Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1E8](https://openairdocs.org/tcds/1E8)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/78ACA3A81B30E93D85256CC2005C2D6F.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SE87WE

## ADs that name it (0)

None.

## Approved models (6)

- Pratt & Whitney Division JT3D-1 ([TCDS 1E8](https://openairdocs.org/tcds/1E8))
- Pratt & Whitney Division JT3D-1-MC6 ([TCDS 1E8](https://openairdocs.org/tcds/1E8))
- Pratt & Whitney Division JT3D-1-MC7 ([TCDS 1E8](https://openairdocs.org/tcds/1E8))
- Pratt & Whitney Division JT3D-3 ([TCDS 1E8](https://openairdocs.org/tcds/1E8))
- Pratt & Whitney Division JT3D-3B ([TCDS 1E8](https://openairdocs.org/tcds/1E8))
- Pratt & Whitney Division JT3D-7 ([TCDS 1E8](https://openairdocs.org/tcds/1E8))

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