What it approves
Installation of Rockwell Collins dual AHC-3000 Attitude Heading Reference System (AHRS)
What the certificate says
From the PDF’s text layer, without the form’s printed wording. Layout and order may differ; the PDF is the record.
ST11145SC BHE & Associates Ltd 8627 Cinnamon Creek Dr Suite 301 San Antonio, TX 78240 Part 25 the Title 14, Code of Federal Regulations A3EU Textron Aviation Inc.
BAe.125 Series 800A and 800B 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) 02/14/2012 08/06/2025 08/08/2013 for Paul Nguyen Manager, Central Certification Branch Compliance & Airworthiness Division Aircraft Certification Service 4 Installation of Rockwell Collins dual AHC-3000 Attitude Heading Reference System (AHRS) in accordance with Master Drawing List 407-00-0001, Revision E, dated August 7, 2013, or later approved FAA revision. Airplane Flight Manual Supplement 407-00-0015, Revision IR, dated August 6, 2013, or later approved FAA revision, is required.
FAA 8110-2 ( 10/24) Page 2 of __
ST11145SC 08/06/2025 4
ST11145SC 08/06/2025 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 Textron Aviation Inc. BAe.125 Series 800A and 800B modified by installation the Rockwell Collins dual AHC-3000 AHRS is as follows:
a. The type certification basis for Textron Aviation Inc. BAe.125 Series 800A and 800B airplanes is shown on TCDS A3EU 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, February 14, 2012, is based upon part 25 as amended by Amendment 25-135:
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 this modification were determined to be:
Regulations at the latest amendment 25-0 through 25-135 14 CFR §25.1, 25.2, 25.29(b), 25.301(a)(b), 25.303, 25.305(a)(b), 25.307(a), 25.321, 25.341
(a), 25.561(a)(b)(d), 25.581(a)(b)(1), 25.601, 25.603, 25.605(a), 25.609(a), 25.613(a)(b),
25.789(a), 25.853(a), 25.1301(a), 25.1307(c), 25.1317, 25.1331, 25.1333, 25.1351(a),
25.1431, 25.1501, 25.1519, 25.1523, 25.1529, 25.1541, 25.1555(a), 25.1581, 25.1583(h),
25.1585(a)
Regulations at an intermediate amendment 14 CFR §25.981(a)(3) Amendment 25-102 14 CFR §25.1316 Amendment 25-80 14 CFR §25.1353(a)(b)(d) Amendment 25-113
ST11145SC 08/06/2025 Certification Basis (Continued):
Regulations at the amendment level in TCDS A3EU 14 CFR §25.611, 25.869(a)(4), 25.1309(a)(b)(c)(d)(e)(g), 25.1322, 25.1357(a)(c)
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ADs that name this STC · 0
An AD can apply because an STC is installed, or mention one in its text.