What was found
FAINT ELECTRICAL SMELL NOTED BY BOTH PILOTS; DISSAPPERED IMMEDIATELY. NO SMOKE NOTED. EXPERIENCED LEFT PACK TRIP OFF ON LANDING. / PERFORMED CONDITIONAL INSPECTION PER AMM 05-51-56 FOUND LEFT ACM AND LEFT TEMP CONTROL VALVE TO BE BAD. R/RD LEFT ACM PER AMM 21-51-04. R/R'D LEFT TEMP CONTROL VALVE PER AMM 21-51-10 PACK SYSTEM OPS CHECKS GOOD ISSUE #3236342 AND 3236567POS L P/N OFF/ON 2206400-2 S/N OFF 1749 S/N ON 14102POS L P/N OFF/ON 398908-5 S/N OFF 21890 S/N ON 29548