As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: DOOR 1L SHOWED DISARMED WHEN IT WAS ARMED. HAD TO RECYCLE SWITCH TO MAKE DOOR SHOW ARMED. MAINTENANCE CLEANED AND LUBRICATED THE L1 DOOR ARMING HANDLE. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED PER AMM 52-73-00.