Summary
We propose to adopt a new airworthiness directive (AD) for all Bombardier, Inc., Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) airplanes, Model CL-600-2D15 (Regional Jet Series 705) airplanes, Model CL-600-2D24 (Regional Jet Series 900) airplanes, and Model CL- 600-2E25 (Regional Jet Series 1000) airplanes. This proposed AD was prompted by a report that Belleville washers installed on the shimmy damper of the main landing gear may fail due to fatigue. This proposed AD would require revising the maintenance or inspection program, as applicable, to incorporate a repetitive task specified in the maintenance review board report. We are proposing this AD to address the unsafe condition on these products.