As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCO-PIT - FLT 1600 - DURING CRUISE, THERE WAS A STRONG ODOR OF BURNED WIRING WITH A SLIGHT HAZE IN THE AIR. THE CAPTAIN SUSPECTED THIS WAS RESIDUAL ODORS FROM AN ELECTRICAL PROBLEM AT THE GATE IN MCO WHEN THE A-PHASE CIRCUIT BREAKER OR THE EXTERNAL POWER POPPED. THE AIRCRAFT DIVERTED TO CLT AS A PRECAUTION AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE MAIN RECIRCULATION FAN. (M)