As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED GREEN HYDRAULIC SYSTEM DRAINED DOWN CAUSING AN AMBER INDICATION WHEN GEAR WAS EXTENDED. CREW DECLARED AN EMERGENCY. THE LANDING WAS UNEVENTFUL. MX REPLACED THE NR 1 ENGINE HYDRAULIC PUMP. OPERATIONAL / LEAK CHECK WAS GOOD. OPEN