As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLYING AT 17000 FT, CREW RECEIVED A HYD 1 LOW QTY MESSAGE. CREW FOUND HYD QTY AT 18 PERCENT AND FALLING. CREW STOPPED CLIMB, REQUESTED TURN BACK TO DEPARTURE, RAN QRH AND DECLARED AN EMERGENCY. CREW LANDED AND TAXIED TO GATE WITHOUT INCIDENT. MAINTENANCE INSPECTED AND FOUND THE NR 1 GROUND SPOILER CONTROL MODULE LEAKING. MAINTENANCE R & R NR 1 GROUND SPOILER CONTROL MODULE IAW AMM AND OPS CHECKED GOOD. ACFT IS GOOD FOR SERVICE.