Gulf Air A320 at Kochi on Aug 29th 2011, runway excursion
Last Update: June 25, 2012 / 15:11:43 GMT/Zulu time
Incident Facts
Date of incident
Aug 29, 2011
Classification
Accident
Cause
Runway excursion
Airline
Gulf Air
Aircraft Type
Airbus A320
ICAO Type Designator
A320
The Runway Excursion was caused due to an error of judgment of the PIC during which was due to loss of situational awareness during reduced visibility conditions.
The captain (35, ATPL, 7000 hours total, 1200 hours in command on type) was pilot flying, the first officer (37, 3000 hours total flying experience) was pilot monitoring.
The aircraft had been on an ILS approach to Cochin's runway 27 with the autopilot tracking localizer and glideslope, the aircraft was in full landing configuration and maintained a drift angle of 4 degrees. At about 670 feet AGL the autopilot was disconnected, the flight director kept in tracking the ILS. The aircraft descended through 500 feet AGL fully stabilized on localizer and on glideslope. Following descending through 200 feet AGL the aircraft began to increasingly roll right reaching 4 degrees of bank angle and drifted right of the localizer, the controls were crossed with the aircraft kept side slipping. The captain later reported that the downpour increased substantially decreasing visibility to about 2000 meters (however within pilot limitations). The first officer, pilot monitoring, continued to call out "Continue, localizer nice, profile nice and continue". After touchdown the pilot monitoring called "maintain center line", the DGAC commenting too late too little and not forceful with the captain obviously having lost awareness with respect of the position to the center line.
Tracks on the runway identified the left main gear touched down 459 meters past the runway threshold 12.8 meters to the right of the runway center line and the right main gear touched down about 21.5 meters right of the center line and 1.5 meters to the right of the right runway edge and went over a right hand runway edge light immediately thereafter before leaving the paved surface and rolling over soft ground. The left main wheels departed paved surface 570 meters past the runway threshold. The pilot applied left hand rudder however to no avail as the aircraft was already on soft surface with airspeed reducing. The aircraft came to a stop 1235 meters past the runway threshold and about 760 meters past touch down. All occupants were evacuated. Of the 144 occupants (138 passengers and 6 crew) one passenger received serious injuries (fracture of right ankle, fractures of 6 ribs and stitches in left elbow), 7 passengers were treated at the airport medical facilities.
The aircraft received substantial damage including a collapsed and sheared nose gear, skin damage and buckling, slush and mud inside the electronics compartment ventilation, main landing gear doors cracked, hydraulic and electrical lines at the main landing gear damaged, both engines' nose cowls torn, buckled and crushed, right hand engine fan blades shingled, slush and mud ingested by both engines. 5 runway edge lights were destroyed.
At 22:30Z, 5 minutes past touch down, the weather was observed as: winds at 10 knots from 040, moderate drizzle, visibility 4000 meters, scattered cloud at 800 feet, 26 degrees Celsius.
Six safety recommendations were released as result of the investigation.
Incident Facts
Date of incident
Aug 29, 2011
Classification
Accident
Cause
Runway excursion
Airline
Gulf Air
Aircraft Type
Airbus A320
ICAO Type Designator
A320
This article is published under license from Avherald.com. © of text by Avherald.com.
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