As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ECAM GAVE BLUE HYD RES LOW QTY. FOLLOWED ECAM AND TURNED OFF BLUE HYD PUMP. CHECKED QRH RED TABS MISC SECTION FOR GUIDANCE. CONT TO KLAX. A/C DIVERTED FROM SNA TO LAX. FOUND BLUE SYSTEM SERVO CONTROL PRESSURE SWITCH 17CB O-RING PINCHED/LEAKING. REMOVED AND REPLACED O-RING PER M/M 27-14-18-4. OPS AND LEAK CHECK GOOD. SERVICED BLUE SYSTEM RESERVOIR PER M/M 12-12-29.