As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON AIRCRAFT ARRIVED AT HNL THE GROUND CREW NOTICED THAT THE LEFT OVERWING SLIDE DOOR WAS OPEN AND THE SLIDE MISSING. FLIGHT CREW REPORTED (AFTER LANDING) HAD AN "L WING SLIDE" EICAS MESSAGE AND HAD NOTED A SLIGHT AIRFRAME VIBRATION AT TOP OF CLIMB. MAINTENANCE IS STILL IN PROGRESS AS OF 07APR11.