What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Rated pilot who was receiving recurrency training taxied off taxi way onto runway and stopped, powered up and released the brakes. The aircraft went immediately to the right, off the runway, through a snow bank. Flight instructor failed to arrest uncontrolled excursion off runway. Both props and both engines were damaged. Nose gear steering, rudder, rudder movement, and aircraft brakes checked normal after incident.
As the FAA filed it
(-23) RATED PILOT WHO WAS RECEIVING RECURRENCY TRAINING TAXIED OFF TAXI WAY ONTO RUNWAY AND STOPPED, POWERED UP AND RELEASED THE BRAKES. THE AIRCRAFT WENT IMMEDIATELY TO THE RIGHT, OFF THE RUNWAY, THROUGH A SNOW BANK. FLIGHT INSTRUCTOR FAILED TO ARREST UNCONTROLLED EXCURSION OFF RUNWAY. BOTH PROPS AND BOTH ENGINES WERE DAMAGED. NOSE GEAR STEERING, RUDDER, RUDDER MOVEMENT, AND AIRCRAFT BRAKES CHECKED NORMAL AFTER INCIDENT.