What was found
IN LEVEL CRUSE AT FL 250, FLIGHT ATTENDANT REPORTED SMOKE IN THE CABIN WITH SOME ORDER IN THE COCKPIT. DID NOT LOCATE THE SOURCE, SUBSIDED AFTER A FEW MINUTES, DIVERTED. INSPECTED ACFT & PERFORMED ETN-EM-72-034. FOUND PACK 1 TO BE INOPERATIVE WITH PNEUMATIC SOURCE. DEFERRED IAW MEL 21-27, CONFIRMED PACK 2 OVLD. R & R PACK 2 PACK OVER TEMPERATURE SWITCH IAW AMM 21-51-08. PERFORMED OPERATIONS CHECK IAW AMM 21-20-00. OPERATIONS CHECKED GOOD, NO FURTHER DEFECTS NOTED AT THIS TIME. MEL ITEM RESTORED.