As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOSS OF NR 1 HYD RESERVOIR SYS FLUID IN FLIGHT TO 20%. NR 1 ENG HYD PUMP SYS NR 1 LIGHT ON & NR 2 ENG HYD PUMP SYS NR 1 LIGHT ON. PSI 200/600 FLUCTUATING. FOUND LEAK FROM NR 1 ENG HYD PUMP SYS NR 1. REMOVED NR 1 ENG HYD PUMP 1 & NR 2 ENG HYD PUMP 1. INSTALLED OVERHAULED UNITS. OPERATIONS & LEAK CHECK SATISFACTORY.