Power is now restored at the airport and due to the outage, all the flights that were scheduled to depart from the airport got cancelled, and the passengers were informed to go home.
The airport’s power backup also failed due to a damaged power transmission pole and impacted the airport flights, terminals, delayed check-ins, security screening and car park access.
Meanwhile, the flights which were already on their way to Perth could land. However, the flights which need to depart from the airport have been delayed until further notice.
Some passengers reported that they were stuck on aeroplanes which already landed as the air bridges could not work without power.
Other passengers who could exit their planes had trouble while collecting their luggage, which were brought out by workers manually.
Perth Airport CEO Kevin Brown announced that a thorough review of the backup power systems would be conducted immediately to understand the reason for the backup generation system’s failure.
Brown said: “The backup generation system for critical safety systems such as the runway lighting worked as intended, meaning that aircraft could continue to land safely throughout the event.
“Other parts of the backup generation system that provide power to the terminals did not work as intended. We need to understand why that happened.
“The review of backup power systems will look through all issues to identify what could have been done better and to ensure the system remains fit for purpose.”
In May, the airport converted 16 check-in counters at the T1 International area into automated bag drops and installed 36 new self-check-in kiosks in the old queuing area.