As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOSS OF NR 1 HYDRAULIC SYSTEM FLUID IN FLIGHT. NR 1 HYDRAULIC ISO VALVE LIGHT AND ROLL SPOILER INBOARD LIGHT ILLUMINATED. NR 1 HYDRAULIC SYSTEM DID NOT GO TO ZERO. FOUND NR 2 HYDRAULIC SYSTEM OVERSERVICED AND OVERSPILL CONTAINER FULL. INSPECTED FILTERS AND BYPASS INDICATORS, NO DEFECTS NOTED. OPERATED HYDRAULIC SYSTEMS, NO LEAKS OR FLUID LOSS NOTED.