As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MIA - CREW REPORTED ELECTRIC BURNING SMELL AND HAZE IN COCKPIT. LANDED MIA WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. FOUND THE LEFT WING POWER DRIVE UNIT DRIVE MOTOR PUMP LEAKING HYDRAULIC FLUID. REPLACED BOTH HEAT EXCHANGERS, RECIRCULATION FANS, AND SLAT POWER DRIVE UNIT SHAFT SEALS. SYSTEM GROUND CHECK NORMAL OPERATION.