Summary
We propose to supersede Airworthiness Directive (AD) 2010-23- 19, that applies to certain Bombardier, Inc. Model CL-600-2C10 (Regional Jet Series 700, 701, and 702) airplanes, Model CL-600-2D15 (Regional Jet Series 705) airplanes, and Model CL-600-2D24 (Regional Jet Series 900) airplanes. AD 2010-23-19 requires repetitive inspections for damage of the main landing gear (MLG) inboard doors and fairing, and corrective actions if necessary. Since we issued AD 2010- 23-19, we have received reports of the MLG failing to fully extend. This proposed AD would require repetitive inspections for damage of the MLG inboard doors, MLG fairing, and adjacent structures of the MLG inboard doors, and corrective actions if necessary; replacement of the MLG fairing seal; and a terminating action involving increasing the clearances between the MLG fairing and MLG door. This proposed AD would also add one airplane and remove others from the applicability. We are proposing this AD to prevent loss of controllability of the airplane during landing.