As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW RECEIVED AN L2 DOOR OPEN INDICATION. AN EMERGENCY WAS NOT DECLARED & RETURNED TO DEPARTURE, LANDED WITHOUT INCIDENT. MAINTENANCE R & R THE VISUAL INDICATOR AND PROXIMITY SENSOR IAW AMM. OPS CHECKED GOOD AND ACFT IS GOOD FOR SERVICE.