From the ATSB’s report:
What happened
On 9 July 2019, a Fokker F100 aircraft, registered VH-FWI, was being operated by Virgin Australia Regional Airlines (VARA) as regular public transport flight VA1788 from Geraldton to Perth, Western Australia.
During climb at about 13,000 ft, the left engine flamed out. Due to a pre-existing fault with the autothrottle system the pilot was required to manually select climb thrust on the remaining (right) engine. The crew elected to maintain the incidental speed (250 knots). Due to a desire not to ‘strain’ the right engine the pilot flying also elected not to increase thrust from climb to maximum continuous, and/or reduce the aircraft’s speed towards the recommended single engine climb speed (155–170 knots). Consequently, the crew adopted a cruise level about 6,500 ft below the maximum engine out altitude.
The crew maintained their cleared track to Perth and conducted an approach and landing via the runway 21 instrument landing system, using single engine procedures. The aircraft was accompanied from the touchdown point to the domestic terminal by airport emergency vehicles.
😳
Some pretty poor decision making on that flight deck.