# STC SE00023EN

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Helicopter Support Inc Services Div, United States
- Description: Installation of Oil Tank Filler Neck Check Valve, Part Number TSA100Sa, Parts List Rev A dated 7/3/1997.
- Applied: January 30, 1990
- Status date: January 30, 2004
- Product: Engine
- Certification basis: Part 21
- Data sheets: [TCDS E20NE](https://openairdocs.org/tcds/E20NE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/EC40FDE6E636248E86256E3E0070469A.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SE00023EN

## ADs that name it (0)

None.

## Approved models (9)

- Pratt & Whitney Canada Inc. PW118 ([TCDS E20NE](https://openairdocs.org/tcds/E20NE))
- Pratt & Whitney Canada Inc. PW118A ([TCDS E20NE](https://openairdocs.org/tcds/E20NE))
- Pratt & Whitney Canada Inc. PW120 ([TCDS E20NE](https://openairdocs.org/tcds/E20NE))
- Pratt & Whitney Canada Inc. PW120A ([TCDS E20NE](https://openairdocs.org/tcds/E20NE))
- Pratt & Whitney Canada Inc. PW121 ([TCDS E20NE](https://openairdocs.org/tcds/E20NE))
- Pratt & Whitney Canada Inc. PW123 ([TCDS E20NE](https://openairdocs.org/tcds/E20NE))
- Pratt & Whitney Canada Inc. PW124B ([TCDS E20NE](https://openairdocs.org/tcds/E20NE))
- Pratt & Whitney Canada Inc. PW125B ([TCDS E20NE](https://openairdocs.org/tcds/E20NE))
- Pratt & Whitney Canada Inc. PW126A ([TCDS E20NE](https://openairdocs.org/tcds/E20NE))

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