COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Boeing 737 Series Aeroplanes AD/B737/98 Krueger Flap Actuator Support Fitting 13/96 Applicability: Model 737 -100 and -200 series aircraft, line positions 001 through 813. Requirement: Action in accordance with the technical requirements of FAA AD 96-17-04 Amdt 39-9712. Compliance: As specified in the Requirement Document. Note: Replacement of the support fitting with a steel fitting and modification of the actuator aft attachment in accordance with Boeing Service Bulletin 737-57-1129 Revision 1, as revised by Notices of Status Change 737-57-1129NSC1; 737-57- 1129NSC2; and 737-57-1129NSC3; constitutes terminating action for the repetitive inspections required by this Directive. Background: The FAA received reports of cracking due to fatigue and stress corrosion of the support fittings of the Krueger flap actuator.