As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENROUTE, HYDRAULIC SYSTEM INDICATED ZERO SYSTEM PRESSURE. DIVERTED, PERFORMED A MANUAL GEAR EXTENSION IAW CHECKLIST. RAN CHECKLIST FOR, "FAILED HYD LANDING". LANDED WITHOUT INCIDENT. HYD PRESSURE WAS AVAILABLE FROM THE AUX PUMP FOR USE WITH BRAKING. DETERMINED TO BE CAUSED BY A PIN HOLE IN SPOILER EXTEND TUBING APPROX 3" AFT OF FORWARD B-NUT AT 90 DEGREE BEND. TUBING WAS REPLACED AND ACFT RETURNED TO SERVICE.