What was found
MAIN DOOR: CABIN DOOR OPEN AND CHECK DOORS CAS MSGS DURING CRUISE FLIGHT. RAN QRH CHECKLIST. CABIN DOOR REMAINED SECURE AND CAS MSGS REMAINED ON THRU BLOCK-IN. RESOLUTION: CONNECTED BATTERIES AND VERIFIED REPORTED FAULT. INSPECTED DOOR LATCHES AND DOOR HARNESS WITH NO DEFECTS NOTED. POWERED AIRCRAFT AND VERIFIED LIVE DATA, FOUND ALL LATCHES WERE REPORTING CLOSE. PERFORMED DOOR RESET PROCEDURE. PERFORMED SEVERAL OPS CHECKS WITH NO DEFECTS NOTED. REFERENCE CES-FT-680A-3036 SECTION 6.2.3.3.2 PAGE 74 MMEL PROCEDURE AND CE 680A AMM 52-10-00