Summary
The FAA proposes to supersede an existing airworthiness directive (AD) that applies to all Airbus Model A300 B2, B4-100, and B4-200 series airplanes. The existing AD currently requires supplemental structural inspections to detect fatigue cracking, and repair of cracked structure. This proposed AD would require revising the maintenance program by incorporating new and revised supplemental structural inspections, inspection intervals, and repairs; and repair of any damaged, cracked, or corroded structure; which would end the existing supplement structural inspections. This proposed AD results from a review of service history and reports received from the current supplemental structural inspection document program. We are proposing this AD to prevent reduced structural integrity of these airplanes due to fatigue cracking.