STC ST11291DS

ST11291DS BHE & Associates, Ltd.

8627 Cinnamon Creek Dr., Suite 301 San Antonio, Texas 78240 Part 25 the Title 14, Code of Federal Regulations A21EA Bombardier Inc.

CL-600-2B16 (604 Variant)

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

(see continuation sheet 3 of 3) 05/23/2023 10/20/2025 09/17/2024 VT-DRB Aviation Lead ODA Administrator, ODA-831473-SW 3 Installation of new Bulkhead Display Units (BDUX) monitors in accordance with Master Data List 687-00-0001, revision IR, dated 09/17/2024 or later FAA approved revision;

ST11291DS 10/20/2025 3

ST11291DS 10/20/2025 Description of Type Design Change (continued from sheet 1 of 3):

and Instructions for Continued Airworthiness 687-00-0037, revision A, dated 08/21/2024 or later FAA accepted revision.

Limitations and Conditions (continued from sheet 1 of 3):

2. 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.

New Certification Basis: Based on 14 CFR §§ 21.115 and 21.101, and the FAA policy for significant changes in FAA Order 8110.48, the certification basis for the Bombardier Inc.

CL-600-2B16 (604 Variant) modified by the installation of new Bulkhead Display Units (BDUX) monitors is as follows:

a. The type certification basis for Bombardier Inc. CL-600-2B16 (604 Variant) airplanes is shown on TCDS A21EA for parts not changed or not affected by the change.

b. The certification basis for parts change or affected by the change since the reference date of application, 23 May 2023, include:

The certification basis:

Regulations at the latest amendment 25-1 through 25-148:

14 CFR § 25.899(a)(b).

Regulations at an intermediate amendment:

14 CFR § 25.981(a)(3) amendment 25-102.

----------------- END ----------------- 3 3 Add Page