As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE, FL370. NR 1 ENGINE HYD LOW PRESSURE LIGHT ILLUMINATED. CHECKLIST COMPLETED. MOTORED NR 1 ENGINE AND FOUND NR 1 EDP TO BE BAD. R & R NR 1 ENG HYD PUMP REF MM 29-11-11, WHLE PERFORMING OPS & LEAK CHECK FOUND PUMP OUTLET HYD LINE LEAKING AT SEAM 2 ABOVE QUICK DISCONNECT. R & R NR 1 ENG HYD PUMP PRESSURE LINE. RAN NR 1 ENG TO CHECK FOR LEAKS, NO LEAKS NOTED. REF AMM 29-11-11-400-801-001 NR 1 ENG DRIVEN HYD PUMP OPS CHECKED GOOD.