What was found
LANDING GEAR FAILED TO EXTEND & HAD TO BE BLOWN DOWN. LANDING GEAR CIRCUIT BREAKER E4 TRIPPED, LANDING GEAR DUMP V LIGHT IS INOPERATIVE. LEFT HYD PRESSURE WAS AVAILABLE DURING THE PROCEDURE. REMOVED DAMAGED SELECTOR DUMP VALVE. INSTALLED REPAIRED SELECTOR DUMP VALVE. ALL WORK PERFORMED IAW CMP323009. MLG HYD SELECTOR & DUMP VALVE REMOVAL INSTALLATION. PERFORMED LT HYD RESERVOIR SHUTOFF VALVE OPERATIONAL TEST LAW CMP 3230009. PERFORMED HYD SYS SERVICING LAW CMP 122901, PERFORMED MLG CYCLING OPERATIONAL TEST LAW CMP 323906. PERFORMED MLG EMERGENCY EXTENSION SYS FUNCTIONAL CHECK LAW CMP 323901. PERFORMED SERVICED EMERGENCY BLOW DOWN BOTTLE LAW CMP 123207. PERFORMED FLUSH OF EMERGENCY GEAR SYS LINES LAW MM 32-39-00. LEAK & OPS CHECKED GOOD, OK FOR SERVICE.