What was found
FLIGHT 9750 - EN ROUTE PIT-CVG RECEIVED A CABIN DOOR WARNING MESSAGE, FLIGHT RETURNED TO PIT. CLEANED AND LUBRICATED THE UPPER LATCH CAMS.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLIGHT 9750 - EN ROUTE PIT-CVG RECEIVED A CABIN DOOR WARNING MESSAGE, FLIGHT RETURNED TO PIT. CLEANED AND LUBRICATED THE UPPER LATCH CAMS.