What was found
A LOUD GRINDING NOISE CAME FROM THE NOSE WHEEL AREA UPON TOUCHDOWN ON LANDING AT BOS. MAINTENANCE FOUND THE LT NOSE WHEEL INNER BEARING HAD FAILED AND DAMAGED THE AXLE. THE LT AND RT NOSE WHEELS WERE REMOVED AND REPLACED. IN ADDITION, THE NOSE GEAR PISTON STRUT AND SEALS WERE REMOVED AND REPLACED IAW MM 32-00-01, LEAK CHECKS WERE GOOD. THE NOSE GEAR WAS SWUNG AND OPERATION CHECKED GOOD.