Incident Overview
Description
Korean Air flight 631, an Airbus A330-322, suffered a runway excursion after landing on runway 22 at Mactan-Cebu International Airport (CEB), Philippines. The aircraft struck the ILS localizer antenna array for runway 22, after overrunning the end of the runway. The nose landing gear appears to have collapsed prior to the aircraft hitting the antenna array. The flight departed Seoul-Incheon International Airport (ICN) at 10:20 UTC on a flight to CEB. The Pilot-In-Command (PIC) was the pilot flying (PF) when the accident happened. There was a change of runway in use from runway 04 to runway 22 as the variable winds shifted direction favorable to runway 22 during the first approach for landing At 14:26 UTC, on the second approach for landing, after descending below the minima, the crew encountered heavy rain and elected to go-around as they lost runway visibility. A third approach was flown and a second go-around was performed due to sudden increase of sink rate followed by an aural warning ?Sink rate?. While initiating the go-around, the aircraft landing gears made contact with the ground. An Electronic Centralized Aircraft Monitor (ECAM) message was noted by the crew indicating LGCIU 1 and 2 fault. After reporting the go-around to the air traffic controller (ATC), the crew requested to hold over reporting point ALMAR and performed ECAM actions. While performing ECAM action on the landing gear control interface unit (LGCIU) 1 and 2 fault, they also noticed an ECAM message of brake servo control interface unit (BSCIU) 1 and 2 fault. Another ECAM actions were performed and then they decided to make another approach. A fourth approach for landing was then initiated, and the crew performed a normal landing gear down procedure in accordance to ECAM Actions for LGCIU 1and 2 fault but all landing gears down lock indicator were not illuminating. The crew then performed the procedure on manual gravity extension. However, only two indicators (nose + left main landing gear) were illuminating, and the right main landing gear indicator was not illuminating. The crew requested from ATC to cancel the approach clearance and again hold over reporting point ALMAR to resolve the technical issue. After the crew carried out the QRH procedure for landing with abnormal landing gear, an indication of HYD B RSVR LO LVL message was displayed. The crew then performed another ECAM action. The flight then continued its approach to RPVM. At 15:08 UTC (23:08 local time) during landing on the fifth approach, the aircraft failed to stop and overran the end of the runway. After colliding with the localizer antenna and runway approach lighting system, the aircraft came to a complete stop at the grassy portion about 235 meters from the end of runway 22.
Primary Cause
Unexpected and rapid deceleration during the go-around sequence, likely exacerbated by a combination of reduced visibility, aural warning of sink rate, and the failure of the landing gear indicators, leading to a loss of control and a collision with critical infrastructure.Unexpected and rapid deceleration during the go-around sequence, likely exacerbated by a combination of reduced visibility, aural warning of sink rate, and the failure of the landing gear indicators, leading to a loss of control and a collision with critical infrastructure.Share on:
