Airworthiness Directive · Amendment 39-23002 · Air data computer
Thommen Aircraft Equipment AG Digital Air Data Computers
(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.
| Type certificate holder | Aircraft model |
|---|---|
| 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.
The FAA is correcting an airworthiness directive (AD) that published in the Federal Register. The AD applies to certain Thommen Aircraft Equipment AG (THOMMEN) AC32 Digital Air Data Computers (ADCs). As published, there were typographical errors in the some of the aircraft models in the applicability table. This document corrects those errors. In all other respects, the original document remains the same.
For Group 1 aircraft: Within 12 months after the effective date of this AD, remove each affected part from service and replace it with a serviceable part in accordance with paragraph 3.A. of the Accomplishment Instructions in THOMMEN SB AC32/07 Revision 1.0, except where this material specifies to send the removed affected part to the manufacturer, this AD does not require that action.
