As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT RETURNED TO FIELD DUE TO A HYDRAULIC G, NR 1 ENGINE PUMP LOW PRESSURE ECAM MESSAGE (ELECT PUMP OFF). THE AIRCRAFT WAS GROUNDED. NO FLUID LOSS. REPLACED THE NR 1 ENGINE GREEN SYSTEM HYDRAULIC PUMP IAW AMM 29-11-51. OPS AND LEAK CHECKED GOOD.