As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER BLOCK IN ON THE GROUND IN HKG, STRONG SMELL OF TOXIC FUMES WERE PRESENT IN THE COCKPIT AND UPPER DECK. THE FUMES HAD THE SMELL OF ELECTRIC WIRING OVERHEAT OR BURNING AND CAUSED EYE AND SINUS IRRITATION. THE FUMES PERSISTED AFTER VENTILATION. FOUND LEFT SIDE WALL FWD CARGO COMPT STA 550 DRIVEBAY NR 1 E/E COOLING FAN EMITTING AN ODOR. LOCKED OUT FAN AND DEFERRED PER 21-58-6.