As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: DOOR FLIGHT LOCK L2 STATUS MESSAGE FOUND ON PREFLIGHT REVISED. PERFORMED TROUBLE SHOOTING OF L2 DOOR IAW FIM 52-10-F1-C9A-421A AND FIM 52-10-F1-ANA-421A-A. FOUND FLIGHT LOCK ACTUATOR ACTIVATING AND DEACTIVTING EVERY 3 MIN CAUSING DOOR TO JAM, PROBLEMS LEAD TO L2 DOOR EPAS MODULE. REMOVED AND REPLACED EPAS MODEL AT L2 DOOR IAW AMM 52-11-21.