As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE HYD PUMP WARNING LIGHT ILLUMINATED DURING CLIMB. IAW EA CHECKLIST USED STBY HYD SYSTEM FOR RETURN TO FIELD. LANDING UNEVENTFUL. PERFORMED OPERATIONAL TEST OF THE FIREWALL SHUT OFF HYD VALVE IAW AMM TASK 29-11-06-710-801. SYSTEM OPERATES NORMALLY. REMOVED & REPLACED NR 1 ENG VARIABLE DELIVERY HYD PUMP IAW AMM TASK 29-11-01-000-801/400-801. NO DEFECTS OR LEAKS NOTED. RETURNED TO SERVICE.