AD/DA42/3 Amdt 2 - Engine Control Unit Back-Up Batteries (Cth)

AIRWORTHINESS DIRECTIVE On the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/DA42/3 Amdt 1 and issues the following AD under subregulation 39.001(1) of CASR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

Diamond DA42 Series Aeroplanes AD/DA42/3 Amdt 2 Engine Control Unit Back-Up Batteries 1/2008 TX

Applicability: DA 42 aeroplanes, serial numbers (S/N) 42.004, 42.006, 42.009 through 42.156, 42.158 through 42.176, 42.178 through 42.190, 42.192 through 42.233, 42.235 through 42.246, 42.248 through 42.254, 42.256 through 42.261, 42.263 through 42.269 and Canadian production line aeroplanes S/N 42.AC001 through 42.AC109. Requirement: 1. Modify the engine electrical system by installing additional engine control unit (ECU) backup batteries in accordance with Diamond Aircraft Industries GmbH (DAI) Mandatory Service Bulletin (MSB) 42-042 dated 22 June 2007 and DAI Work Instruction WI-MSB-42-042 dated 20 June 2007 or later revisions of these documents approved by the European Aviation Safety Agency (EASA). 2. Amend the DA 42 Aircraft Maintenance Manual by inserting DAI AMM-TR-MÄM-42-240 Temporary Revision (TR) dated 17 June 2007 or later EASA approved AMM revision, update the operator's maintenance programme and maintain the aircraft accordingly. 3. Amend the DA 42 Aircraft Flight Manual (AFM) by inserting a copy of AFM TR-MÄM-42-240 dated 17 June 2007 or later EASA approved AFM revision, into the AFM, as instructed in that document. AMM and AFM TRs incorporated in accordance with this Directive may be removed when the information contained in the TR is incorporated in the manual during the normal revision process. Modification of the engine electrical system of the DA 42 and accomplishment of related actions in accordance with the instructions contained in DAI Optional Service Bulletin (OSB) 42-050/1 dated 15 October 2007 or later EASA approved revision, including associated documents referenced therein, has been approved by the EASA as an alternative method of compliance for the requirements of AD 2007-0183 R2. Accomplishment of DAI OSB 42-050/1 is also acceptable as an alternate method of compliance for this Directive. Note: EASA AD 2007-0183 R2 (corrected 7 November 2007) refers.