As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LGA-FLIGHT 3615 CREW REPORTED THAT WHEN SELECTING GEAR DOWN THE NR 2 HYDRAULIC PRESSURE DROPS TO ZERO. MAINTENANCE BLED NR 2 LANDING GEAR SEQUENCE VALVE, NOSE GEAR ACTUATOR, AND NR 2 HYDRAULIC SYSTEM IN ACCORDANCE WITH DASH 8 MAINTENANCE MANUAL 12-10-29. ENGINE RAN AND OPERATED SYSTEM. LEAK CHECK WAS GOOD, AND ALL SYSTEMS OPERATED NORMALLY. NO DEFECTS WERE NOTED. AIRCRAFT RETURNED TO SERVICE.