# STC SA442EA

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Atlantic Aviation Corporation, United States
- Description: Installation of bulkhead and bulkhead door at fuselage station 391.5.
- Status date: January 1, 1960
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A3EU](https://openairdocs.org/tcds/A3EU)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C21AF7CF8F74117A862570D100554911.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA442EA

## ADs that name it (0)

None.

## Approved models (6)

- Raytheon Aircraft Company DH.125 Series 1A/R-522 ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Raytheon Aircraft Company DH.125 Series 1A/S-522 ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Raytheon Aircraft Company DH.125 Series 3A ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Raytheon Aircraft Company DH.125 Series 3A/R ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Raytheon Aircraft Company DH.125 Series 3A/RA ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Raytheon Aircraft Company DH.125 Series 400A ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))

---
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.