COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES SAAB Safir Series Aeroplanes AD/SAAB/3 Amdt 1 Main Spar Carry Through (U Profile) Corrosion 12/96 Applicability: Safir models 91A, 91B, 91B2, 91C and 91D. Requirement: Action in accordance with SAAB 91 Safir SB 91.1.006 Rev1. Note: Swedish AD No. 1-100 refers. Compliance: At the next inspection due in accordance with the previous issue of this Directive or before 30 March 1997, whichever occurs first; thereafter at intervals not exceeding 12 months. This amendment is effective from 7 November 1996. Background: Corrosion damage has been reported in the lower U-profile of the fuselage main spar. The U-profile is a highly loaded member and corrosion damage will degrade the structural capability. Amendment 1 revises the Requirement Document and re-references the Swedish AD. The initial issue of this Directive had effect from 10 November 1994.