What was found
PDX - DURING CRUISE (SJC-PDX), NOTED 'GASEOUS SMELL' IN PASSENGER CABIN. REPLACED BOTH AIR CONDITIONING PACK COALESCER BAGS. ALSO, WASHED LEFT AND RIGHT MLG WHEEL WELLS, AFT AIRCRAFT BELLY AND APU INLET. NO ODOR NOTED UPON TEST WITH APU-SUPPLIED AIR. (M)