What was found
FLT 1868. ON TAKEOFF & LANDING, CREW NOTICED AN ODOR COMING FROM A/C PACKS. MX PLACED ACFT ON MEL. ODOR DISSIPATED DURING CLIMB. CLT MX PLACED LT PACK ON MEL 21-01A. WHILE ON MEL, ANOTHER REPORT OF ODOR COMING FROM A/C PACKS DURING HIGH POWER ON TAKEOFF OCCURRED ON 11/21/08, FLIGHT 1159. ODOR AGAIN DISSIPATED DURING CLIMB. MX INSPECTED LT & RT RAM AIR INLETS, LT & RT ENGINE INLETS & AIR MIX CHAMBER. ALL CHECK OK. RAN ENGINES ONE AT A TIME WITH EACH PACK FOR FIVE MINUTES EACH. REACTIVATED LT PACK & ACCOMPLISHED ADJUSTMENT TEST PER MM 21-61-00-5. TESTED NORMAL. CLEARED MEL 21-01A. NO FURTHER ODORS NOTED AS CONFIRMED WITH FLT CREW & MX. ACFT OK FOR SERVICE.