As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THAT LANDIND GEAR EXTENSION TOOK LONGER THAN NORMAL TO EXTEND. WHEN DOWN AND LOCKED WAS ACHIEVED, CREW NOTICED COMPLETE LOSS OF HYDRAULIC PRESSURE. NORMAL LANDING WAS MADE USING EMERGENCY BRAKES. JACKED AIRCRAFT AND PERFORMED GEAR SWINGS. FOUND CAUSE TO BE A PIN HOLE IN LT SPOILER DOWN LINE ON TOP OF CENTER WING SECTION. CORROSION IS PROBABLE CAUSE FOR PIN HOLE. (K)