# STC SE33NE

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Pratt & Whitney Aircraft Grp, United States
- Description: Incorporation of improved combustor and turbine components which permit operation at increased EGT limits.
- Status date: March 14, 1980
- Product: Engine
- Certification basis: Part 21
- Data sheets: [TCDS E20EA](https://openairdocs.org/tcds/E20EA)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/91A4E48542A5FACE85256CCB00601974.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SE33NE

## ADs that name it (0)

None.

## Approved models (1)

- Pratt & Whitney Division JT9D-7F ([TCDS E20EA](https://openairdocs.org/tcds/E20EA))

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