As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6161 - BOS-LGA - LEFT PACK FAN TRIPPED CIRCUIT BREAKER. AIR CONDITION SMOKE IN COCKPIT ON TAXI IN. LEFT PACK TEMP 110 DEGREES - 120 DEGREES BEFORE TURNING OFF PACK. FOUND LEFT PACK FAN DOOR INOPERATIVE CLOSED. REPLACED LEFT PACK FAN AIR INLET DOOR ACTUATOR PER MM 21-56-71. OPERATIONAL CHECKS OK. (M)