As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EQUIP COOLING FAN LIGHT CAME ON RESET ONE TIME CIRCUIT BREAKER. THE BREAKER POPPED AND FLT ATT REPORTED THE SMELL OF SMOKE FOUND "EXHAUST" EQUIPMENT COOLING FAN C/B POPPED AND WORKS NORMAL IN "ALTERNATE". PLACED ON MEL 21-24-2B. CONTROL # 575132. EXHAUST FAN INOP. ALSO PERFORMED SMOKE QUESTIONARE AND INSPECTION SEE LP 89955903 FOR REPLACEMENT OF RECIRCULATION FAN FILTERS AS PER737 AMM CHAPTER 21. REPLACED FAULTY EXHAUST FAN PER AMM 21-58-12.