On 8 April 2015, an Airbus A320 crew lost their previously-acquired and required visual reference for the intended landing runway at Brasilia but continued descent in heavy rain and delayed beginning a go around until the aircraft was only 40 feet above the runway threshold but had not reached it. A premature touchdown prior to the runway then occurred and the aircraft travelled over 30 metres on the ground before becoming airborne again. The Investigation was unable to establish any explanation for the failure to begin a go around once sufficient visual reference was no longer available.