What was found
WHEN MLG SELECTED DOWN FOR LANDING , LT MLG INDICATOR LIGHT DID NOT ILLUMINATE. NO MLG UNSAFE INDICATION NOTED. PERFORMED MLG WILL NOT EXTEND CHECKLIST. LT & RT LOW HYD FLOW LIGHTS BLINKED INTERMITTENTLY AFTER MLG BLOWN DOWN. MLG LIGHT REMAINED OFF. PERFORMED ROTARY TEST PRIOR TO EMER CHECKLIST & LIGHT DID NOT ILLUMINATE. FOUND LT MLG INDICATOR BULB INOP, RELAMPED PER MM 33-13-01. OPS CKS GOOD. SERVICED BLOW DOWN BOTTLE PER MM 12-13-00. WHILE PERFORMING MLG FUNCTIONAL CHECK FOUND MLG DUMP VALVE LEAKING. REPLACED DUMP VALVE PER MM 32-31-06. PERFORMED MLG CHECK PER MM 32-30-00. OPS AND LEAK CHECKS GOOD.