What was found
MAIN DOOR: A RED CAS MESSAGE PAX DOOR OPEN INFLIGHT AT FL400. // SIGNOFF // PERFORMED OPERATIONAL TEST OF THE MAIN DOOR MICRO SWITCHES AFTER PERFORMING OPERATIONAL CHECK WE WERE ABLE TO DUPLICATE THE CAS MESSAGE WITH THE DOOR IN CLOSED POSITION .COMPLYING WITH THE FIM-488S-52-71-00-810-801-A PER CONTACT CENTERS REQUEST THE UPPER MICRO SWITCH WAS FOUND TO BE LOOSE. ADJUSTED LOOSE MICRO SWITCH PERFORMED OPERATIONAL CHECKS IAW EMB MM. CH 52-71-20 SUBTASK 710-001-A. OPS CHECKS SATISFACTORY AT THIS TIME.