What was found
AFTER T/O SMELL OF CAR WASH CHEMICALS IN COCKPIT. PACK 1 OFF PER COM AND SMELL DISSIPATED. ENG BLEED WAS SUPPLYING PACK 1 AT TIME OF SMELL, POWER SETTING T/O THRUST-PERFORMED TSM 05-50-00-810-831. FOUND PACK 1 CAUSE OF ODOR, NO OTHER DEFECT NOTED. SEE LOG PAGE 2966667 ITEM 1 FOR CORRECTIVE ACTION