What was found
DURING TAXI, A SHIMMY/VIBRATION IS FELT BETWEEN 15-20KTS. IT FEELS LIKE A "POOR CONDITION" TAXIWAY SURFACE. THERE IS NO NOTICABLE DIRECTIONAL BIAS AND ALL HANDLING CHARACTERISTICS ARE NORMAL. REMOVED NR 1 NOSE WHEEL ASSEMBLY AND NR 2 NOSE WHEEL ASSEMBLY AND INSTALLED OVERHAULED NR 1 NOSE WHEEL ASSEMBLY AND NR 2 NOSE WHEEL ASSEMBLY IAW AMM 32-40-21. OPS CHECKED GOOD. NO DEFECTS ARE NOTED. NOSE WHEEL SPINDLE BEARINGS LUBRICATED IAW AMM 20-10-00. NO DEFECTS NOTED.