Airworthiness Directives; Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) Airplanes

This amendment adopts a new airworthiness directive (AD) that is applicable to certain Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes. This action requires revising the airworthiness limitations section of the Instructions for Continued Airworthiness of the aircraft maintenance manual by incorporating procedures for a functional test of the pilot input lever of the pitch feel simulator unit. This action also requires a functional test of the pilot input lever of the pitch feel simulator unit, and corrective action if necessary. This action is necessary to prevent undetected failure of the shear pin of both PFS units simultaneously, which could result in loss of pitch feel forces and consequent loss of control of the airplane. This action is intended to address the identified unsafe condition.