What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
On October 14, 2015 on or ABOUT14:30 local time, a Cessna 421-B aircraft was on a training flight; while taxiing for takeoff at River Falls Airport (81XA) in Amarillo, Texas, the aircraft's right brake failed and the aircraft was unable to make a right turn and ran off the left side of the taxi-way and broke the left main landing gear, striking the propeller and coming to a stop causing substantial damage to the left wing, left main landing gear, and left engine and propeller. There were two people aboard; the instructor and trainee. There were no injuries. This aircraft is on a part 135 certificate, however, the flight was being operated under a part 91 training flight. The director of operations, who is also a training pilot, was giving instruction to a newly hired employee at the time of the incident. Weather at the time was clear, 10 miles visibility, and light to moderate winds from the south.
As the FAA filed it
ON OCTOBER 14, 2015 ON OR ABOUT14:30 LOCAL TIME, A CESSNA 421-B AIRCRAFT WAS ON A TRAINING FLIGHT; WHILE TAXIING FOR TAKEOFF AT RIVER FALLS AIRPORT (81XA) IN AMARILLO, TEXAS, THE AIRCRAFT'S RIGHT BRAKE FAILED AND THE AIRCRAFT WAS UNABLE TO MAKE A RIGHT TURN AND RAN OFF THE LEFT SIDE OF THE TAXI-WAY AND BROKE THE LEFT MAIN LANDING GEAR, STRIKING THE PROPELLER AND COMING TO A STOP CAUSING SUBSTANTIAL DAMAGE TO THE LEFT WING, LEFT MAIN LANDING GEAR, AND LEFT ENGINE AND PROPELLER. THERE WERE TWO PEOPLE ABOARD; THE INSTRUCTOR AND TRAINEE. THERE WERE NO INJURIES. THIS AIRCRAFT IS ON A PART 135 CERTIFICATE, HOWEVER, THE FLIGHT WAS BEING OPERATED UNDER A PART 91 TRAINING FLIGHT. THE DIRECTOR OF OPERATIONS, WHO IS ALSO A TRAINING PILOT, WAS GIVING INSTRUCTION TO A NEWLY HIRED EMPLOYEE AT THE TIME OF THE INCIDENT. WEATHER AT THE TIME WAS CLEAR, 10 MILES VISIBILITY, AND LIGHT TO MODERATE WINDS FROM THE SOUTH.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.