As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) NR 1 STANDBY POWER UNIT INDICATED, 'NO PRESSURE OUTPUT'. DEFECT 435468, SPU REMOVED AND SENT TO SHOP. APRIL 4TH JAZZ HYD SHOP WO NR 174735 REPORTED, 'PISTON SHOE FAILURE CAUSED PISTON BEARING PLATE TO BE GOUGED. PISTON RETAINER PLATE, PISTON RETAINER PLATE RETAINER AND CYLINDER BARREL DAMAGED BY FOD. PUMP TESTED AND RETURNED TO SERVICE.'