As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: LEFT AFT SERVICE DOOR HANDLE RAISES OUT OF THE STOWED POSITION AFTER TAKE OFF. HANDLE WILL NOT GO TO THE STOWED POSITION UNTIL DEPRESSURIZED AFTER LANDING. NO FLIGHT DECK INDICATIONS. MAINTENANCE ADJUSTED THE LEFT AFT SERVICE DOOR AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK.