# STC ST10973SC - Type: Supplemental type certificate - Status: Current, Reissued - Holder: BHE & Associates LTD, United States - Description: Activation of a high power cabin telecommunication router - Applied: April 28, 2010 - Status date: August 6, 2025 - Product: Aircraft, Large Airplane - Certification basis: Part 25 - Data sheets: [TCDS A21EA](https://openairdocs.org/tcds/A21EA) - Certificate PDF: https://openairdocs.org/files/sha256/30/9c/309c59cae42d659ac67288597ee6e25d7016caf73d3b3d2cefb8acd10f7722e0 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID127535318220250911181455.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/ST10973SC ## ADs that name it (0) None. ## Approved models (4) - Bombardier Inc. CL-600-2A12 (CL-601) ([TCDS A21EA](https://openairdocs.org/tcds/A21EA)) - Bombardier Inc. CL-600-2B16 (CL-601-3A) ([TCDS A21EA](https://openairdocs.org/tcds/A21EA)) - Bombardier Inc. CL-600-2B16 (CL-601-3R) ([TCDS A21EA](https://openairdocs.org/tcds/A21EA)) - Bombardier Inc. CL-600-2B16 (CL-604) ([TCDS A21EA](https://openairdocs.org/tcds/A21EA)) ## 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. ST10973SC BHE & Associates, Ltd. 8627 Cinnamon Creek Dr Suite 301 San Antonio, TX 78240 Part 25 the Title 14, Code of Federal Regulations A21EA Bombardier, Inc. CL-600-2A12; CL-600-2B16 The installer must determine whether this design change is compatible with previously approved modifications. 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. (See Continuation Sheet 3 of 4) 12/11/2009 08/06/2025 04/28/2010 for Paul Nguyen Manager, Central Certification Branch Compliance & Airworthiness Division Aircraft Certification Service 4 Activation of a high power cabin telecommunication router in accordance with master drawing list 339-00-0001, revision E, dated April 09, 2010, or later approved FAA revision. Airplane flight manual supplement, document 339-00-0016, revision IR, dated April 05, 2010, or later FAA revision, is required. FAA 8110-2 ( 10/24) Page 2 of __ ST10973SC 08/06/2025 4 ST10973SC 08/06/2025 Limitations and Conditions (Continued): The installer must verify that the airplane meets the configuration requirements contained in BHE & Associates document 339-00-0025, "Requirements for the Installation of an Aircell Axxess II System w/WIFI", revision C, dated April 09, 2010, or later FAA approved revision. Certification Basis: Based on 14 CFR §§21.115 and 21.101(b)(1), and FAA Order 8110.48, the certification basis for the Bombardier CL-600-2A12 and CL-600-2B16 modified by the installation of an AirCell WiFi cabin router is as follows: a. The type certification basis for Bombardier CL-600-2A12 and CL-600-2B16 airplanes is shown on TCDS A21EA for parts not changed or not affected by the change. b. The certification basis for parts changed or affected by the change since the reference date of applications, December 11, 2009, is based upon part 25 as amended by Amendment 25-129. Based on 14 CFR §21.115 and 21.101(b)(1), and FAA Order 8110.48, the certification basis for this modification was determined to be: Regulations at the latest amendment 25-0 through 25-129 14 CFR §25.1, 25.2, 25.29, 25.301(a)(b)(c), 25.303, 25.305(a)(b), 25.307(a), 25.341(a), 25.561(a)(d), 25.601, 25.603, 25.605(a), 25.609(a), 25.613(a)(b), 25.789, 25.1307(c), 25.1351(a), 25.1431, 25.1529, 25.1541, 25.1555(a), 25.1581, 25.1583(h), and 25.1585(a). Regulations at an intermediate amendment 14 CFR §25.869(a)(4) Amendment 25-72 14 CFR §25.1353(a)(c) Amendment 25-113 14 CFR §25.981(a)(3) Amendment 25-102 3 4 ST10973SC 08/06/2025 Certification Basis (Continued): Regulations at the amendment level in TCDS A21EA 14 CFR §25.1301, 25.1309 and 25.1357(a)(c) -END- 4 4 ## Every issue (2) - August 6, 2025: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/30/9c/309c59cae42d659ac67288597ee6e25d7016caf73d3b3d2cefb8acd10f7722e0) - April 28, 2009: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/1b/07/1b074fd380c9f711903fe44cf06e79848b574b59d63173850659e471258409de) --- 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.