Summary
This document revises an earlier proposed airworthiness directive (AD), applicable to certain Bombardier Model CL-600-2B19 series airplanes, that would have required repetitive eddy current inspections for cracking of the main landing gear (MLG) main fittings, and replacement with a new or serviceable MLG, if necessary. This new action revises the proposed rule by continuing to require the repetitive eddy current inspections of the MLG; and adds requirements to service the MLG shock struts, inspect the MLG shock struts for nitrogen pressure, visible chrome dimension, and oil leakage, and perform corrective actions, if necessary. The actions specified by this new proposed AD are intended to prevent failure of the MLG main fitting, which could result in collapse of the MLG upon landing. This action is intended to address the identified unsafe condition.