Airworthiness Directives; Airbus Airplanes

We are superseding Airworthiness Directive (AD) 2016-09-07 for all Airbus Model A318, A319, A320, and A321 series airplanes. AD 2016- 09-07 required replacing certain pitot probes on the captain, first officer, and standby sides. This new AD retains those requirements, but with a revised compliance time. Since we issued AD 2016-09-07, we received additional reports of airspeed indication discrepancies during flight at high altitudes in inclement weather. We are issuing this AD to prevent airspeed indication discrepancies caused by accumulation of ice crystals during inclement weather, which, depending on the prevailing altitude, could lead to reduced controllability of the airplane.