As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOS - THE TOWER REPORTED SMOKE COMING FROM LEFT HAND MAIN GEAR UPON LANDING. TOWER DECLARED EMERGENCY. SMOKE WAS ALSO COMING FROM LEFT HAND ENGINE AS REPORTED BY EMERGENCY CREW. PERFORMED EMERGENCY SHUTDOWN AND PULLED FIRE HANDLE. EXAMINATION CONFIRMED ENGINE OK. INSPECTED LEFT MAIN GEAR TRUCK AND FOUND TRUCK POSITIONER ACTUATOR LEAKING. REPLACED LEFT HAND POSITIONER ACTUATOR AND REPLACED NUMBER 5 BRAKE AND TIRE. SYSTEM GROUND CHECK NORMAL OPERATION.