Airworthiness Directives; Airbus Model A300 and A300-600 Series Airplanes

This amendment supersedes an existing airworthiness directive (AD), applicable to all Airbus Model A300 series airplanes, that currently requires repetitive inspections for cracking of the No. 2 flap beams, and replacement of the flap beams, if necessary. That AD was prompted by reports of cracking of the No. 2 flap beams. This amendment provides optional modifications for extending certain inspection thresholds, and an optional terminating modification for certain inspections. This amendment also expands the applicability of the existing AD to include Model A300-600 series airplanes. The actions specified by this AD are intended to prevent asymmetry of the flaps due to cracking of the No. 2 flap beams.