As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ASH 7024 ORD. RETURNED TO GATE FOR A PAX DOOR HANDLE CAUTION MESSAGE ON TAXI OUT. MAINTENANCE FOUND THE DOOR HANDLE POPPED UPON RETURN TO GATE. MAINTENANCE PERFORMED OPS CHECKS OF DOOR LATCH AND INDICATION SYSTEM AND COULD NOT DUPLICATE FAULT.