What was found
(CAN) AT APPROXIMATELY V1 ON TAKEOFF CREW NOTICED BURNING RUBBER SMELL. FLY BY TOWER REVEALED NORMAL EXTENDED GEAR. MAINTENANCE ACTION INVOLVED CHECKING NOSE LANDING GEAR FORWARD ACCESSORY AND E/E COMPARTMENTS. A STRONG ODOUR WAS DETECTED IN AREA OF LEFT HAND AIR CONDITIONING PACK. COALESCER BAGS REPLACED AND PNEUMATIC PILOT PRESSURE REGULATOR AND AIR CONDITIONING PILOT PRESSURE REGULATOR CHANGED.