As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 5442 - BURNING ODOR IN COCKPIT AND CABIN ACCOMPANIED WITH SMOKE. CLEANED AIR CONDITIONING HEAT EXCHANGERS, RAN BOTH PACKS OFF ENGINE BLEEDS AND APU BLEED FOR OVER AN HOUR, NO DISCREPANCIES NOTED. INSPECTED WIRING AND CONTACTORS NO DISCREPANCIES NOTED.