1AD/B737/98 - Krueger Flap Actuator Support Fitting

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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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.