What was found
POST FLT CREW REPORTED, WHILE ON APPROACH SMOKE ODOR SUSPECT FROM COOLING PACK SYS. LANDED WITHOUT INCIDENT & NO PRECAUTIONARY ACTIONS. ON ARRIVAL ACFT GROUNDED FOR MAINT. POST FLT, LINE MAINT REPORTED INTERROGATION OF BUILT IN TEST EQUIPMENT LT PACK, ZONE TEMP & RT PACK BOX GOOD. NO FAULTS RECORDED. FOLLOWING LT PACK OPS TO MAXIMUM OF 112 TEMP & SHUTDOWN, SMOKE ODOR NOTED. INSPECT OF PACK BAY GOOD. NO EVIDENCE OF BURNED OR FAULTY WIRING. LT PACK AIR CYCLE MACHINE R & R IAW AMM 21-51-03/401/018. OPS & LEAK CHECKED GOOD. SMOKE OR FUMES IN CABIN CONDITIONAL INSPECTION IAW AMM SATISFACTORY. NO FAULTS FOUND.