# STC SE557NE

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Stockbridge William D, United States
- Description: Installation of oil tank shuttle valve.
- Status date: December 4, 1989
- Product: Engine
- Certification basis: Part 21
- Data sheets: [TCDS E2EA](https://openairdocs.org/tcds/E2EA), [TCDS E9NE](https://openairdocs.org/tcds/E9NE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/791B2619A09120F085256CC2005A75B3.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SE557NE

## ADs that name it (0)

None.

## Approved models (21)

- Pratt & Whitney Division JT8D-1 ([TCDS E2EA](https://openairdocs.org/tcds/E2EA))
- Pratt & Whitney Division JT8D-11 ([TCDS E2EA](https://openairdocs.org/tcds/E2EA))
- Pratt & Whitney Division JT8D-15 ([TCDS E2EA](https://openairdocs.org/tcds/E2EA))
- Pratt & Whitney Division JT8D-15A ([TCDS E2EA](https://openairdocs.org/tcds/E2EA))
- Pratt & Whitney Division JT8D-17 ([TCDS E2EA](https://openairdocs.org/tcds/E2EA))
- Pratt & Whitney Division JT8D-17A ([TCDS E2EA](https://openairdocs.org/tcds/E2EA))
- Pratt & Whitney Division JT8D-17AR ([TCDS E2EA](https://openairdocs.org/tcds/E2EA))
- Pratt & Whitney Division JT8D-17R ([TCDS E2EA](https://openairdocs.org/tcds/E2EA))
- Pratt & Whitney Division JT8D-1A ([TCDS E2EA](https://openairdocs.org/tcds/E2EA))
- Pratt & Whitney Division JT8D-1B ([TCDS E2EA](https://openairdocs.org/tcds/E2EA))
- Pratt & Whitney Division JT8D-209 ([TCDS E9NE](https://openairdocs.org/tcds/E9NE))
- Pratt & Whitney Division JT8D-217 ([TCDS E9NE](https://openairdocs.org/tcds/E9NE))
- Pratt & Whitney Division JT8D-217A ([TCDS E9NE](https://openairdocs.org/tcds/E9NE))
- Pratt & Whitney Division JT8D-217C ([TCDS E9NE](https://openairdocs.org/tcds/E9NE))
- Pratt & Whitney Division JT8D-219 ([TCDS E9NE](https://openairdocs.org/tcds/E9NE))
- Pratt & Whitney Division JT8D-5 ([TCDS E2EA](https://openairdocs.org/tcds/E2EA))
- Pratt & Whitney Division JT8D-7 ([TCDS E2EA](https://openairdocs.org/tcds/E2EA))
- Pratt & Whitney Division JT8D-7A ([TCDS E2EA](https://openairdocs.org/tcds/E2EA))
- Pratt & Whitney Division JT8D-7B ([TCDS E2EA](https://openairdocs.org/tcds/E2EA))
- Pratt & Whitney Division JT8D-9 ([TCDS E2EA](https://openairdocs.org/tcds/E2EA))
- Pratt & Whitney Division JT8D-9A ([TCDS E2EA](https://openairdocs.org/tcds/E2EA))

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