# STC SR01401NY

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Canadian Helicopters Limited, Canada
- Description: Installation of Chadwick-Helmuth HUMS System using Drawing No. CHS61-31-006, dtd 8/22/01.
- Status date: October 22, 2001
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS 1H15](https://openairdocs.org/tcds/1H15)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6A8DC6FB22149AA285256CC20062272F.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SR01401NY

## ADs that name it (0)

None.

## Approved models (2)

- Sikorsky Aircraft Corporation S-61L ([TCDS 1H15](https://openairdocs.org/tcds/1H15))
- Sikorsky Aircraft Corporation S-61N ([TCDS 1H15](https://openairdocs.org/tcds/1H15))

---
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.