# STC ST11865IB

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Nigel Waterhouse (DAR 367), Canada
- Description: The modification and installation of Cabin Sound Proofing Material
- Applied: December 11, 2024
- Status date: January 6, 2025
- Product: Aircraft, Large Airplane
- Certification basis: Part 25
- Foreign approvals: TCCA Q-LSA-24-021/D Issue 1
- Data sheets: [TCDS A21EA-1](https://openairdocs.org/tcds/A21EA-1)
- Certificate PDF: https://openairdocs.org/files/sha256/a1/1c/a11c55e7e52e8658870e53576666b4791c7f385d38d3e3495f40bfb3fe1dff5c
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID199586374020250108154242.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/ST11865IB

## ADs that name it (0)

None.

## Approved models (1)

- MHI RJ Aviation ULC CL-600-2B19 (Regional Jet Series 100) ([TCDS A21EA-1](https://openairdocs.org/tcds/A21EA-1))

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

FAA 8110-2 (10/24) Page 1 of ___ IMPORT ST11865IB Nigel Waterhouse (DAR 367) 1935 Rue Remembrance Montreal, Quebec Canada H4S 1X1 Part 25 Title 14, Code of Federal Regulations A21EA-1 MHI RJ Aviation ULC CL-600-2B19

1. If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission.

2. The installer must determine whether this design change is compatible with previously approved modifications.

3. This approval is limited to only the installation made in MHI RJ Aviation ULC, CL-600-2B19, Serial No.7548.

This STC does not permit manufacturing of parts for multiple installations.

12/11/2024 12/19/2024 01/06/2025 John Yoo Manager, International Validation Branch Compliance & Airworthiness Division Aircraft Certification Service 3

1. The modification and installation of Cabin Sound Proofing Material must be carried out in accordance with Can-Am Aerospace Master Document List 25-24-10-003, Revision NC, Transport Canada Civil Aviation (TCCA) approved November 18, 2024, or later TCCA approved revisions.

2. Maintenance must be in accordance with Can-Am Aerospace Instructions for Continued Airworthiness 25-24-10-004, Revision NC, dated November 18, 2024, or later TCCA accepted revisions.

Based on Title 14 Code of Federal Regulations (14 CFR) § 21.115 and § 21.101, and the FAA policy for design changes that are identified as not significant in FAA Order 8110.48, the type certification basis for modified MHI RJ Aviation ULC, CL-600-2B19, is as follows:

a. The type certification basis for the MHI RJ Aviation ULC, CL-600-2B19, is shown on Type Certificate Data Sheet (TCDS) A21EA-1 for parts not changed or not affected by the change.

b. The type certification basis for the MHI RJ Aviation ULC, CL-600-2B19, for parts changed or affected by the change is shown on TCDS A21EA-1 with the following exception:

14 CFR § 25.856(a) at Amendment 25-111.

----------END---------- 3 3

## Every issue (1)

- January 6, 2025: Amended, Current. [certificate](https://openairdocs.org/files/sha256/a1/1c/a11c55e7e52e8658870e53576666b4791c7f385d38d3e3495f40bfb3fe1dff5c)

---
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.