As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR DISAGREE L AMBER CAS: GEAR DISAGREE L AMBER CAS POSTED IN FLIGHT. COMPLETED ABNORMAL PROCEDURE AND CAS MESSAGE REMAINED. PRESSING THE DOWNLOCK MICROSWITCH AFTER LANDING REMOVED THE CAS MESSAGE. CORRECTIVE ACTION; REPLACED LH MLG UPLOCK SWITCH IAW MODEL 680A MM 32-32-00. OPS CHECK GOOD.