Cabin pressurisation issue involving a De Havilland Canada DHC-8-102, VH-QQD, 83 km north west of Perth Aerodrome, Western Australia, on 20 November 2021

On 20 November 2021, VH-QQD was conducting a scheduled flight from Perth to Port Hedland. During climb, as the aircraft approached 10,000 ft, the crew identified that the cabin had not pressurised. The flight returned to Perth.