Airworthiness Directives; Mitsubishi Heavy Industries, Ltd., MU- 2B Series Airplanes

This amendment adopts a new airworthiness directive (AD) that applies to all Mitsubishi Heavy Industries, Ltd. (Mitsubishi) MU-2B series airplanes. This AD requires incorporating information into the Limitations Section of the Airplane Flight Manual (AFM) that would require pilot training before flight into known or forecast icing conditions after a certain date. This AD results from the Federal Aviation Administration's analysis that the current training level of the pilots-in-command (PIC) of the MU-2B series airplanes makes it difficult for pilots to recognize adverse operating conditions and operate safely while flying in icing conditions. Similar training to that required in this AD for pilots of other high performance airplanes has shown a lower accident rate over time after the training than before. The actions specified by this AD are intended to decrease the chance of icing-related incidents or accidents of the MU-2B series airplanes due to pilot error.