What was found
ON DECENT FL190 UNTILE 20202 WHEN CLEAR OF CLOUDS. PACK #2 OFF DID NOT HELP PACK #1 OFF DID NOT HELP WHEN CLEAR OF CLOUDS IT HELPED A LITTLE BIT.-PERFORMED TSM 05-50-00-810-831 OPERATED PACKS 1 AND 2 ON APU OPWER FOUND NO CONTAMINATION PERFORMED ENG 1 AND 2 IDL RUN FOUND NO CONTAMINATION VIA AERO TRACER A/C IS OK FOR SERVICE. CABIN AIR SUPPLY VENTS, FLIGHT DECK, FWD CABIN, AND MID CABIN. NO VISIBLE SMOKE/HAZE. NO MEDICAL ATTENTION REQUIRED.