As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEVEL ONE HYD 3 OFF PASSING FL 200 LEVEL TWO HYD 3 FAIL AT FL 370, LOWERED GEAR MANUALLY. FOUND HYD PRESS HOSE THAT CONNECTS FROM THE PYLON TO THE ENG HYD MANIFOLD BLOWN APART AT THE PYLON B NUT. REMOVED THE DAMAGED HOSE. DUE TO NR 3 SYS HYD AT 0 QTY, REQUIRES BOTH EDP & ENG FILTERS REPLACED. REMOVED THE RT EDP UP TO INSTALLATION IAW AMM CHAPTER 29-11-20-4-2. R & R NR 3 ENG HYD PRESS HOSE ASSEMBLY FROM PYLON TO HYD MANIFOLD ASSEMBLY IAW SMP.