As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 6033, CVG TO MSY. AFTER TAKE-OFF THE CREW RECEIVED A CABIN SERVICE DOOR WARNING ON EICAS AND RETURNED TO CVG AND LANDED WITHOUT INCIDENT. MAINTENANCE DEFERRED THE SERVICE DOOR EICAS INDICATION AND RELEASED THE AIRCRAFT FOR SERVICE. THE DEFERRAL WAS CLEARED ON 4/8/2009 WHEN THE CONNECTOR FOR THE DOOR HARNESS WAS RE-SECURED AND THE DOOR INDICATION OPERATED NORMALLY.