# STC SE994EA

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Airwork Service Division, United States
- Description: Manufacture of oil tank sight gage float.
- Status date: June 13, 1975
- Product: Engine
- Certification basis: Part 21
- Data sheets: [TCDS E2EU](https://openairdocs.org/tcds/E2EU)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9451494C7BD9EBD885256CCB00601990.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SE994EA

## ADs that name it (0)

None.

## Approved models (5)

- Rolls-Royce Corporation Spey 506-14 ([TCDS E2EU](https://openairdocs.org/tcds/E2EU))
- Rolls-Royce Corporation Spey 506-14A ([TCDS E2EU](https://openairdocs.org/tcds/E2EU))
- Rolls-Royce Corporation Spey 511-14 ([TCDS E2EU](https://openairdocs.org/tcds/E2EU))
- Rolls-Royce Corporation Spey 511-14W ([TCDS E2EU](https://openairdocs.org/tcds/E2EU))
- Rolls-Royce Corporation Spey 511-8 ([TCDS E2EU](https://openairdocs.org/tcds/E2EU))

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.