What was found
LEFT NOSE WHEEL TIRE FAILURE DURING TAKEOFF. GROUNDED - YES. AIR TURNBACK - PERFORMED TIRE TREAD LOSS OR TIRE BURST CONDITIONAL INSPECTION PER B737-900AMM 05-51-54 FOUND MORE THAN 50% OF TREAD MISSING AND LOW TIRE PRESSURE ON LEFT NOSE TIRE. ALSO FOUND DENTS AFT OF NOSE LANDING GEAR DOORS, DENTS ON FUSELAGE APPROX 10" FWD OF E/E DOOR AND APPROX 24" AFT OF E/E BAY DOOR, AND DENT ON E&E BAY DOOR. REMOVED AND REPLACED BOTH NOSE TIRES PER AMM 32-45-21.