A suspected faulty air conditioner forced a Dragonair flight bound for Hong Kong to divert last night after smoke was detected inside the cabin. Flight KA663 from the eastern Chinese city of Fuzhou was diverted to Xiamen, where all 259 passengers onboard evacuated the Airbus A330. No injuries were reported, according to the airline. The aircraft departed around 8.40pm, however, by 9.10pm after reaching cruising altitude, pilots altered course as a precaution, descending rapidly and making a U-turn for Xiamen, according to flight tracking website Flightradar24. The flight landed at 9.24pm. Technicians inspected the aircraft overnight but could not find a source for the smoke. A Dragonair spokeswoman said the flight was diverted “as a precautionary measure due to suspected defects with the air conditioning system, leading to smoke detected in the cabin.” The airline provided accommodation and meals for passengers overnight as a result of the unexpected delay. Flight arrangements were being made this morning for passengers to continue their journeys.