As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE RUNNING LT PACK IN AUTO MODE AT FULL COLD DUCT TEMP EXCEEDED 100 C, SMOKE IN COCKPIT, SHUT OFF PACK AND SMOKE CLEARED. CM ACTION C/W PLACARDED AND PLACED ON MEL. REMOVED AND REPLACED LT PACK TEMP SENSOR (RT4HB) OPS CHECK GOOD. REMOVED FROM MEL AND PLACARD. IAW AMM, NO DEFECTS NOTED. (K)