# STC SE133NE

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: United Technologies, United States
- Description: Incorporation of Hamilton Standard EDM 110-3 Engine Data Multiplexer
- Applied: March 1, 1983
- Status date: May 3, 1985
- Product: Engine
- Certification basis: Part 21
- Data sheets: [TCDS E3NE](https://openairdocs.org/tcds/E3NE)
- Certificate PDF: https://openairdocs.org/files/sha256/64/8e/648e86fb21f544b7b1ac6ec3a88c36437c395a6e61237e15178b855161cea249
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6763497EC5E132D3862580CE0074E07E.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SE133NE

## ADs that name it (0)

None.

## Approved models (3)

- Pratt & Whitney Division JT9D-7R4D1 ([TCDS E3NE](https://openairdocs.org/tcds/E3NE))
- Pratt & Whitney Division JT9D-7R4E1 ([TCDS E3NE](https://openairdocs.org/tcds/E3NE))
- Pratt & Whitney Division JT9D-7R4H1 ([TCDS E3NE](https://openairdocs.org/tcds/E3NE))

## What the certificate says

The certificate is a scan without a text layer; open the PDF to read it.

## Every issue (1)

- May 3, 1985: Amended, Current. [certificate](https://openairdocs.org/files/sha256/64/8e/648e86fb21f544b7b1ac6ec3a88c36437c395a6e61237e15178b855161cea249)

---
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.