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/A320/78 Spoiler Phased Lift Dumping 2/97 Applicability: All model A320-111, A320-211 A320-212, A320-231, A320-232, A321-111, A321-112 and A321-131 without Airbus Industrie modification 24745 or Airbus Industrie Service Bulletins A320-27-1088 dated 16 January 1995, Revision 1 dated 16 May 1995 or Revision 2 dated 11 September 1995 incorporated. Requirement: Unless previously accomplished, modify the aeroplane in accordance with Airbus Industrie Service Bulletins A320-27-1088 dated 16 January 1995, Revision 1 dated 16 May 1995 or Revision 2 dated 11 September 1995 to activate the "phased lift dumping" function of the spoiler elevator computer. Note: DGAC AD 96-169-081(B) refers. Compliance: Prior to 30 September 1997. This Airworthiness Directive becomes effective on 30 January 1997. Background: This Directive mandates measures designed to reduce the delay in activation of automatic deceleration means during landing with strong cross winds and/or on contaminated runways.