As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: FORWARD ENTRY DOOR ANNUNCIATOR LIGHT CAME ON AFTER LANDING. FLIGHT ATTENDANT REPORTS THE DOOR HANDLE POPPED UP OUT OF THE CLOSED POSITION. LIGHT WENT OUT WHEN HANDLE RUSHED DOWN. INSPECTED L1 DOOR HANDLE AND FOUND HANDLE NEEDING LUBRICATION. LUBRICATED PER REF: AMM 12-20-00.