What was found
FIFTH TIME SAME PROBLEM, DIFFERENT ACFT, BUT SAME TIRE. MANUFACTURER: GOODYEAR. FLIGHT CUSTOM II, 650-10 6PR TUBELESS. THIS ACFT ON 1-7-97 AT 8,010.7 TT. PILOT REPORTS SHIMMY IN NOSE WHEEL. UNABLE TO BALANCE TIRE. NO VISIBLE DEFECT NOTED. GOOD THREAD LIFE, APPEARS ROUND. DISMOUNT FOUND LOOSE BALANCE PATCH. INSTALLED NEW TIRE AND BALANCED. ON 4-27-98 AT 8,521.7 TT, SAME WRITE-UP AND PROBLEM. AFTER 511.4 TIME IN SERVICE. DEBONDED BALANCE PATCH.