ASN Aircraft accident Airbus A321-131 HL7594 Anyang VOR
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Status:Accident investigation report completed and information captured
Date:Friday 9 June 2006
Type:Silhouette image of generic A321 model; specific model in this crash may look slightly different
Airbus A321-131
Operator:Asiana Airlines
Registration: HL7594
MSN: 1356
First flight: 2000-11-01 (5 years 7 months)
Total airframe hrs:11427
Engines: 2 IAE V2530-A5
Crew:Fatalities: 0 / Occupants: 6
Passengers:Fatalities: 0 / Occupants: 200
Total:Fatalities: 0 / Occupants: 206
Aircraft damage: Substantial
Aircraft fate: Repaired
Location:32 km (20 mls) SE of Anyang VOR (   South Korea)
Phase: En route (ENR)
Nature:Domestic Scheduled Passenger
Departure airport:Jeju (Cheju) International Airport (CJU/RKPC), South Korea
Destination airport:Seoul-Gimpo (Kimpo) International Airport (GMP/RKSS), South Korea
On the day of the accident, the flight crew were scheduled for two round-trip flights between Gimpo and Jeju Airports departing from Gimpo Airport at 11:50. And at the time of the accident, the aircraft was on the final leg to Gimpo Airport after departing from Jeju Airport about 17:05.
When flight 8942 was flying along route B5763 to Gimpo Airport after taking off from Jeju Airport, at 17:30:53, the controller instructed flight 8942 to fly heading 040° for the separation from another aircraft around 30 NM south of NUMNDA, and at 17:32:08, instructed the flight to fly directly to NUMNDA in order to reenter route B576.
At 17:33:05, the flight crew requested heading 030° to avoid clouds during a turn to NUMDA, and the controller gave permission.
At 17:34:04, immediately after the flight crew requested the controller for the further descent from an altitude of 16,000 ft, the controller transferred the flight 8942 to Seoul Approach Control, and the Seoul Approach Control controller gave permission to descend to an altitude to 11,000 ft.
At 17:36:02, the flight crew requested a high speed descent, and the controller permitted it. In the meantime, the speed of flight 8942 reached up to about 325 knots.
At 17:38:33, flight 8942 started to shake as it was passing through an area at an altitude of about 13,000 ft, and the cabin crew announced to check passenger seat belts fastened. At 17:38:42, the captain instructed the first officer to request for a left-turn, and at 17:38:48, the first officer requested the left-turn to the controller ("Seoul Approach, AAR8942 request left Turn").
At 17:39:26, flight 8942 was given permission to turn left to 330°, and during the turn, it encountered a hailstorm for 36 seconds from 17:40:02 until 17:40:38.
After the encounter with the hailstorm, the radome located in the front section of the aircraft was detached, and the surface of windshield was cracked to the extent that there was no forward visibility.
In addition, the Auto Thrust System, Auto Pilot System and Flight Director System were disconnected. The flight crew manually attempted to approach and land on runway 14R of Gimpo Airport twice following the radar vectoring of the approach controller, but went around due to its difficulty to make a safe landing. About 18:13, they made a successful landing on the third approach attempt.

Probable Cause:

Findings Related to Probable Causes:
The flight route selected by the flight 8942 crew in order to avoid the thunderstorm was not separated enough by distance from the thunderstorm, and the alertness to the thunderstorm paid by the flight crew during descending was not sufficient, and the flight direction chosen when in close proximity to the thunderstorm was not appropriate to avoid the thunderstorm.

Accident investigation:

Investigating agency: ARAIB
Status: Investigation completed
Duration: 1 year and 7 months
Accident number: ARAIB/AAR0603
Download report: Final report

Forced landing on runway

Follow-up / safety actions

ARAIB issued 13 Safety Recommendations

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This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Jeju (Cheju) International Airport to Seoul-Gimpo (Kimpo) International Airport as the crow flies is 448 km (280 miles).
Accident location: Exact; as reported in the official accident report.

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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