What was found
CABIN DOOR OPEN AMBER CAS: UPON POWER UP RECEIVED CHECK DOORS CAS MESSAGE. MAIN CABIN DOOR WOULD NOT SHOW CLOSED WHEN SHUT. //SIGNOFF// TECH NOTES 1 MAIN BATTERY WAS CONNECTED AT ARRIVAL REMOVED PILOT SEAT AND LOWER LH CABIN SIDEWALL TO GAIN ACCESS TO THE PCB ENCLOSURE PERFORMED RE-RACK OF THE NC105 CED MONITOR PCB IAW CE-680A AMM 24-60-40 PERFORMED CABIN DOOR OPEN RESET PROCEDURE IAW CE680A EMERGENCY/ABNORMAL PROCEDURES REVISION 3 PAGE 3-510-28 OPS TEST GOOD ALL PANELS CLOSED AND PILOT SEAT RE-INSTALLED AIRCRAFT GOOD TO CONTINUE