As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW RECEIVED A L1 DOOR OPEN INDICATION. AN EMERGENCY WAS NOT DECLARED AND CREW LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AND PLACED ON MEL IAW AMM. MAINTENANCE LATER ADJUSTED THE L1 DOOR SWITCH TARGET IAW AMM AND OPS CHECKED GOOD. ACFT IS GOOD FOR SERVICE.