What was found
CREW PERFORMED ATB DUE TO LT HYD SYS FAILURE. NR 5 AND NR 6 TIRES ALSO FOUND TO HAVE FAILED. DECLARED AN EMERGENCY WITH ATC, ARFF MET THE ACFT AFTER STOPPING ON THE RUNWAY, AND ACFT WAS TOWED OFF THE RUNWAY. REPLACED A HYDRAULIC LINE FROM THE TILT PRESSURE SWITCH. INSTALLED NEW EDP CASE DRAIN FILTER. REPLACED THE ACMP CASE DRAIN AND PRESSURE /RETURN FILTERS. R & R THE ACMP AND EDP IAW AMM 29-11. PTU FILTER CHECKED AND CLEAN. OPS CK AND LEAK CK GOOD. REF ERA 541080-14 FOR WORK PERFORMED.