What was found
ON VISUAL APPROACH, PILOT SELECTED LG TO THE EXTENDED POSITION. THE LG POSITION INDICATORS LIGHTS FOR THE MLG REMAINED RED & THE LIGHT FOR NLG DID NOT ILLUMINATE. THE PILOT CYCLED THE LG & RECEIVED TWO GREEN INDICATOR LIGHTS FOR THE MLG, BUT NO LIGHT FOR THE NLG. PERFORMED AN EMER MANUAL EXTENSION OF THE LG, RECEIVED THREE GREEN DOWN & LOCKED INDICATOR LIGHTS. THE PILOT LANDED WITHOUT INCIDENT. INSPECTION REVEALED RT ENG HYD TUBE BY THE OIL TANK CHAFED THROUGH. REPLACED THE HYD TUBE WITH A NEW TUBE, SERVICED THE HYD SYS & PERFORMED HYD SYS OPERATIONAL CHECKS, ALL CHECKED NORMAL.