On 7 July 2014, an Airbus A320 landing at Brunei departed the side of the runway almost immediately after touchdown and continued to gradually diverge from the runway axis until stopping after a ground run of approximately 1,050 metres. The Investigation concluded that the aircraft commander, having taken over control from the First Officer when the latter lost their previously-acquired prescribed visual reference below Decision Altitude due to a sudden-onset intense rain shower ahead, had then continued the approach without recognising that the only lights still visible to him were those at the right hand edge of the runway.
Description
On 7 July 2014, an Airbus A320 (9M-AQA) being operated by Air Asia Berhad on a scheduled international passenger flight from Kuala Lumpur to Brunei (Bandar Seri Begawan) as AK278 touched down at destination on the right hand edge of runway 03 and then ran onto the grass alongside it and continued to slowly deviate from the runway axis until coming to a stop 1,300 metres from the landing threshold. An emergency evacuation was ordered and accomplished during which 1 of the 109 occupants was slightly injured. The excursion caused damage to the aircraft landing gear and both engines and also to aerodrome lighting, signage and electrical supply infrastructure.
The ground track of the aircraft after touchdown. [Reproduced from the Official Report]
Investigation
An Investigation was carried out by the Brunei Air Accident Investigation Team (AAIT) with assistance provided by the AAIB Singapore in accordance with an MoU on Air Accident Investigation. Data from the accident aircraft FDR and CVR were successfully downloaded and used to support the Investigation.
The 29 year-old Captain, who had been promoted to command just over 5 months prior to the accident, had accumulated 6,100 hours total flying experience of which 2,554 hours were on type. His command experience totalled 340 hours. The 23 year-old First Officer had 970 hours total flying experience of which 640 hours were on type.
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