As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#436, STI-JFK. (AIRCRAFT DECLARED AN EMERGENCY INTO JFK) HYD B RSVR LO LVL ECAM WHILE IN CRUISE; REF LP 427922, ITEM 1 (REMOVED AND REPLACED BLUE HYD PUMP DUE TO CAVITATION LEAKS CHECKS GOOD IAW AMM 29-12-51) AND 2 (REPLACED THE FILTERS FOR THE BLUE HYD AND FLUSHED AND RESERVICED THE SYSTEM IAW AMM 29-12-43) AND LP 4272923, ITEM1 (UPON INSPECTION FOUND BLUE HYDRAULICS PUMP PRESSURE SWITCH LEAKING. R/R PRESSURE SWITCH IAW AMM 29-12-31. OPS CH + LEAK CHK GOOD.) FOR CORRECTIVE ACTION.'