Airworthiness Directives; Bombardier, Inc. Airplanes

We are superseding Airworthiness Directive (AD) 2016-09-04 for certain Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes. AD 2016-09-04 required replacement of incorrectly calibrated angle of attack (AOA) transducers. This new AD requires the same actions as AD 2016-09-04. This new AD was prompted by a report of a typographical error in the regulatory text of AD 2016-09-04. We are issuing this AD detect and replace incorrectly calibrated AOA transducers; incorrect calibration of the transducers could result in late activation of the stick pusher.