What was found
FLT 48 - NAS-JFK - DIVERTED TO FLL, 'B' SYSTEM HYDRAULIC FAILED, QTY WENT TO ZERO EVEN WITH BOTH PUMPS OFF. EXECUTED DIVERSION AND EMERGENCY LANDING AT FLL. NORMAL WEIGHT LANDING ACCOMPLISHED. TAXIED TO GATE AND TUG TOWED INTO FINAL POSITION AT JETWAY, USED JETWAY TO DEPLANE PASSENGERS, NO KNOWN INJURIES. FOUND 'B' SYSTEM AILERON SUPPLY S/O VALVE BROKEN FLANGE AND LEAKING. REPLACED VALVE, LEAK CHECKED. SERVICED ALL HYD SYSTEM AND OPS CHECKED IN IAW WITH THE AMM 27-10-142. (M)