As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTS THAT ON APPROACH, THE CABIN WAS FILLING UP WITH A HAZY SMOKE. UPON GATE ARRIVAL THE CABIN WAS QUITE HAZY. APU ON UNTIL AFTER LANDING AND THERE WAS NO CHANGE IN THE CABIN. ACFT REMOVED FROM SERVICE. C/A REMOVED AND REPLACED BOTH RECIRC FANS AND EXHAUST, OPERATION CHECKED GOOD. ACFT RETURNED TO SERVICE. (K)