The increasing number of accidents in recent years on MU-2B series airplanes prompted the FAA to conduct a thorough and complete safety evaluation involving not only a review of the certification aspects of the airplane, but also including a review of operations, maintenance and training.

The FAA's analysis found that compared to similar twin-turboprop airplanes, the MU-2B accident rate is approximately twice as high. The fatal rate is  2.5 times higher, while fatal accident rates in icing conditions are four times higher. An MU-2B pilot is seven times more likely to lose control and have a fatal accident during an emergency compared to pilots flying similar type airplanes in similar situations.

Recommendations are as follows:
·          Specific pilot training and testing of the pilot’s skills.
·          Specific maintenance training.
·          FAA-approved standardized pilot checklist.
·          The latest revisions to the maintenance manual and the AFM.

The complete safety report addresses the outstanding issues and attempts to resolve these issues.