T245 3568 B side cab door difficulty in ~~~~~ 3568 B side cab door difficulty in opening MSP SB. CE: Found 3568 B-side cab door stiff to open.  3568 B/S cab door guide rail found with FOD (Thick layer of dust) accumulated. Removed the dust & cleaned the guide rail. Function check cab door operation - OK. Operation was smooth & ease in opening/closing of cab door.  Raja/Fazly/Farid/Aiman 45092