As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HYDRAULIC SYSTEM FAILED ON TAXI. MAINTENANCE FOUND THE HYDRAULIC PRESSURE SWITCH HAD FAILED AND THUS NOT TURNING ON THE PRESSURE PUMP. THE PRESSURE SWITCH WAS REPLACED AND THE HYDRAULIC MOTOR WAS ALSO REPLACED DUE TO UNUSUAL GRINDING NOISES. MOTOR (P/N 4018502) (S/N EQ32) HAD 2674 HRS TSO.