What was found
(CAN) BEARINGS AND RACES OF MAIN WHEEL ASSY FOUND TO BE GOLD/BROWN IN COLOR. ADEQUATE GREASE WAS PRESENT. EXTREMELY ODD COLOR FOR A BEARING. 2-3 MONTHS PRIOR CMA SWITCHED FROM 28 GREASE TO SHC 100 AVIATION GREASE. SHC 100 IS LISTED IN THE MM FOR APPROVED GREASE, AS WELL CMM. CMA IS USING A MUCH SHORTER LUBE DURATION THAN RECOMMENDED BY THE OEM DUE TO WHEELS SEPARATING FROM THE ACFT INCIDENTS IN RECENT HISTORY. ONE RECENT BEARING SHOWED CHROME LOSS AND GOLD STAINING, WAS DIFFICULT TO ROTATE.