What was found
BOTH AMBER HYD QTY LOW CAS MESSAGES ILLUMINATED DURING CRUISE. CREW DECLARED AN IFE AND MADE A SUCCESSFUL, UNSCHEDULED LANDING. MX FOUND A 'B' NUT HAD BACKED OFF ON THE PRESSURE LINE BETWEEN THE LT PRESSURE TRANSDUCER AND A CHECK VALVE LOCATED IN THE AFT BAGGAGE COMPARTMENT. MX FLUSHED THE HYD SYS, REPLACED THE LT AND RT EDP'S, AND AUXILIARY HY PUMP. OPS CHECK AND LEAK CHECKS NORMAL. REVIEW OF MX RECORDS FOUND NO MX PERFORMED IN THE SUSPECT AREA WITHIN THE PAST FEW MONTHS.