As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 4896 - CREW REPORTED ON CLIMBOUT, THERE WAS SMOKE IN COCKPIT AND CABIN. CREW DECLARED AN EMERGENCY AND LANDED UNEVENTFULLY. SMOKE CLEARED AFTER LANDING WITH BLEED AND PACKS OFF. ACFT REMOVED FROM SERVICE. FOUND AIR DUCTS BLOWN OFF. RE-SECURED BLOWN OFF AIR DUCTS UNDER FLOOR ROW 6. ACFT RETURNED TO SERVICE. (S)