AD NO.
2025-07-01
SUBJECT
Joint Aircraft System Component (JASC) Code 3417, Air Data Computer.
APPLICABILITY
(1) This AD applies to Thommen Aircraft Equipment AG (THOMMEN) AC32 Digital Air Data Computers (ADCs) having an affected part as defined in paragraph (f)(1) of this AD. (2) This appliance is installed on, but not limited to, the following aircraft models specified in table 1 to paragraph (c)(2) of this AD, certificated in any category. – Airbus Defense and Space S.A. (type certificate previously held by Construcciones Aeronauticas, S.A.) CN-235, CN-235-100, CN-235-200, and CN-235-300. – Airbus Helicopters AS332C, AS332C1, AS332L, AS332L1, AS332L2. – Airbus Helicopters Deutschland GmbH (AHD) EC635T2+. – Bell Textron Inc 212, 412, and 412EP. – Bombardier Inc CL-600-1A11 (600). – Columbia Helicopters Inc 107-II, 234. – General Atomics Aerotek Systems GmbH (type certificate formerly held by DORNIER LUFTFAHRT Inc.) 228-100, 228-101, 228-200, 228-201, 228-202, and 228-212. – Gulfstream Aerospace LP Westwind Astra 1124 (serial numbers 004-0410). – International Air Response C-130A. – Kawasaki Heavy Industries, Limited KV107-II. – Leonardo S.p.a A109, A109A, A109A II, A109C, A109K2, A109S, AW109SP, AW139, and AW189. – Textron Aviation Inc 200, 300, 500, 501, 550, and 551. – Viking Air Limited CL-215-6B11 (CL-215T Variant). (3) This appliance is approved for installation and could be installed on various aircraft modified by Supplemental Type Certificate (STC) No. SR09595RC or ST01523WI.
ISSUED BY
FAA