TC reported that cover for cab air- conblower was detached.TC took photo and sent to TOCR. TC rep orted that cover for cab air- con blower was detached.TC t ook photo and sent to TOCR. ~~~~~ 3570 TC reported that cover for cab air- con blower was detached.  TC took photo and sent to TOCR. CE : 3570 Cab AC louvre loose.  3570 A/c louvre replaced. Security check - OK.  Jonathan Koh @1/11/2023