AD/A320/1 - Artus Transformer Rectifiers

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998) , PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Airbus Industrie A319, A320 and A321 Series Aeroplanes AD/A320/1 Artus Transformer Rectifiers 6/89 DM Applicability: All A320-111 and A320-211 aircraft. Requirement: 1. Install in positions 1 and 2, transformer rectifier units Artus P/N TRO3B4200 Amendment J. 2. Replace the transformer rectifier units Artus P/N TRO3B4200 amendment J installed in positions 1 and 2, with transformer rectifier units Artus P/N Y005-2 in accordance with Airbus Industries SB A320-24-1024. 3. Replace the transformer rectifier unit in the essential position which may have been used before in positions 1 or 2 with transformer rectifier Artus P/N TRO3B4200 amendment J equipped with new diode bridges. 4. Replace the transformer rectifier unit in the essential position with transformer rectifier unit Artus P/N Y005-2 in accordance with Airbus Industries SB A320-24- 1028. Note: French AD 89-023-001 (B) R1 refers. Compliance: Requirement 1. Prior to 1 May 1989. 2. Prior to 600 hours total TIS or 31 July 1989. 3. Prior to 1 June 1989. 4. Prior to 31 December 1989. Background: Failure of the transformer rectifier units may lead to the loss of several flight control computers essential for flight safety.