As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#1243, EWR-PBI. (AIRCRAFT DIVERTED TO RDU) ' AT FL380 HAD MESSAGE HYD B RSVR LO LVL POST FLIGHT SHOWS LOTS H HYD FLUID AT AFT BELLY , POOLING ON GROUND; UPON INSPECTION FOUND BLUE HYD PRESSURE SWITCH LEAKING. REMOVED PRESSURE SWITCH IN REF TO A320 AMM 29-12-17. FOUND BAD O-RING REPLACED IN REF TO A320 AMM 29-12-17. LEAK CHECK GOOD. OPS CHECK GOOD. ALL OK FOR SVC.'