What was found
CREW REPORTED AN INTERMITTENT BURNING RUBBER SMELL IN FLIGHT DECK DURING FLIGHT. SMELL WENT AWAY WHEN LEFT PACK WAS SWITCHED OFF. MAINTENANCE FOUND THE LT ACM LEAKING OIL. REPLACED LT WATER SEPARATOR BAG PER AMM 21-51-41 AND REPLACED LT ACM PER AMM 21-51-11. OPS CHECK GOOD. ALSO, GENERAL INSPECTION OF ELECTRICAL WIRES AND ITEMS REVEALED THE LEFT I/B LANDING LIGHT CONTROL SWITCH AND TERMINALS SHOW SIGNS OF OVERHEATING. REMOVED AND REPLACED LEFT I/B LANDING LIGHT SWITCH AND RETERMINATED WIRES TO SWITCH PER SWPM 20-30-11. OPS CHECK GOOD.