Action
Notice of proposed rulemaking (NPRM).
Summary
We propose to supersede an existing airworthiness directive (AD) that applies to all Airbus Model A330-200 and -300 series airplanes; and Model A340-200, -300, -500, and -600 series airplanes. The existing AD currently requires a one-time detailed inspection of both main landing gear (MLG) bogie beams in the region of the bogie stop pad for detection of deformation and damage, and corrective actions if necessary. Since we issued that AD, we have received reports of corroded bogie stop pads, including some with cracking. This proposed AD would add Model A330-200 Freighter series airplanes to the applicability. For certain airplanes, this proposed AD would also add repetitive inspections for damage and corrosion of the sliding piston sub-assembly, with new related investigative and corrective actions. We are proposing this AD to detect and correct deformation or damage under the bogie stop pad of both MLG bogie beams, which could result in a damaged bogie beam and consequent detachment of the beam from the airplane or collapse of the MLG and departure of the airplane from the runway.