As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR DISAGREE MESSAGE RECEIVED ON APPROACH. LEFT MAIN GEAR INDICATION WAS RED. CYCLING THE GEAR HANDLE RESULTED IN THREE GREEN DOWN AND LOCKED INDICATIONS. LANDED SAFELY. (FLT#3715) FO: 07/01/2019 CLOSED REMOVED AND REPLACED LT MLG SIDE-STAY ACTUATOR IAW AMM.