What was found
DURING PREFLIGHT INSPECTION, NOTICE LT FWD MGB SUPPORT BAR EXTREMELY EASY TO TWIST AND HAD A POPPING SOUND WHEN CHECKING BEARING PLAY. INSPECTED THE OTHER SUPPORT BARS AND FOUND THE RT FWD SUPPORT BAR LOWER CRIMPED COLLAR SHOWED MARKING THAT LOOKED LIKE IT HAD BEEN WORKING ON. ON REMOVAL OF THE BARS, FOUND AXIAL PLAY IN BOTH OF THE LT FWD SUPPORT BAR BEARINGS. RT BAR WAS DETERMINED TO HAVE AN AREA THAT WAS CONSISTENT WITH WORKING METAL ON THE LOWER CRIMPED COLLAR. BOTH BARS WERE REPLACED IAW MM 63-32-00, 4-1, AND ACFT PLACED BACK INTO SERVICE.