What was found
(CAN) THE REDUCTION GEARBOX (RGB) WAS FOUND BY THE OPERATOR TO HAVE METAL CONTAMINATION. DISASSEMBLY OF THE RGB REVEALED THE SOURCE OF THE METAL CONTAMINATION WAS THE #15 BEARING WHICH HAD SPALLED BADLY ON THE OUTER RACE. SECONDARY DAMAGE FROM THE CONTAMINATES WAS RESTRICTED TO SEVERAL OTHER BEARINGS AND NO GEARS WERE FOUND DAMAGED SUFFICIENTLY TO REQUIRE REPLACEMENT.