As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW RECIEVED "HYD GREEN ENGINE 1 PUMP LOW PRESSURE". FLIGHT RETURNED TO FIELD AT AND LANDED WITHOUT INCIDENT. MX R & R NR 1 ENGINE GREEN PUMP PRESSURE SWITCH IAW AMM 29-11-17, PB 401. PERFORMED NR 1 ENGINE IDLE RUN. LEAK AND OPS NORMAL. NO FAULTS, OK FOR SERVICE.