As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 566 - EWR - THE RIGHT AIR CONDITIONING PACK BEGAN TO PRODUCE SMOKE IN THE CABIN WHILE ON DESCENT INTO EWR. THE COOLING DOOR WAS OPENED TO BRING TEMPERATURE DOWN AND THE SMOKE STOPPED. THE AIRCRAFT LANDED AT EWR WITHOUT INCIDENT. THE RIGHT PACK WATER SEPARATOR BAG WAS REMOVED AND REPLACED. THE ENGINES WERE RUN AT VARIOUS POWER SETTINGS WITH THE PACKS OPERATING AND NO SMOKE WAS OBSERVED. (M)