Asiana A333 at Seoul on Dec 25th 2011, bird strike

Last Update: March 14, 2013 / 19:23:55 GMT/Zulu time

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Incident Facts

Date of incident
Dec 25, 2011

Classification
Incident

Flight number
OZ-1045

Aircraft Registration
HL7792

Aircraft Type
Airbus A330-300

ICAO Type Designator
A333

An Asiana Airlines Airbus A330-300, registration HL7792 performing flight OZ-1045 from Seoul Gimpo (South Korea) to Tokyo Haneda (Japan) with 254 passengers and 17 crew, had departed Gimpo Airport's runway 32R and was climbing through 623 feet when the crew sighted six geese but could not avoid the right hand engine ingesting at least one of them. The right hand engine's N1 reduced from 82 to 68 percent for about 4 seconds then returned to 82 percent, the vibration indication increased to 2.2 units. The crew continued a normal climb schedule, accelerated the aircraft and retracted the flaps while climbing through 3900 feet. The right hand engine vibrations increased to 5 units but reduced again when the aircraft levelled at 4000 feet. The crew consulted with dispatch while ATC, in the absence of an emergency declaration but informed about the bird strike, cleared the aircraft to climb to FL230. Following the contact with dispatch the crew decided to stop the climb at 8000 feet and return to Gimpo Airport and landed safely on runway 32R about 18 minutes after departure.

South Korea's Accident and Railway Accident Investigation Board (ARAIB) released their final report in Korean concluding the probable causes of the incident were:

the takeoff was not delayed despite the presence of birds in the departure path.

Gimpo Airport has no effective system to detect movements of migratory birds

The ARAIB reported that the right hand engine received damage to the fan case and the stage 1 low compressor stator vanes. Dead white-fronted geese were recovered from the intersection of the runway with taxiway E2 about 2800 meters/9200 feet down the runway.

The ARAIB re-iterated the safety recommendations issued in their report about HL7796, see Report: Jeju B738 at Seoul on Dec 4th 2011, flock of birds, both engines operating at severe vibrations.
Incident Facts

Date of incident
Dec 25, 2011

Classification
Incident

Flight number
OZ-1045

Aircraft Registration
HL7792

Aircraft Type
Airbus A330-300

ICAO Type Designator
A333

This article is published under license from Avherald.com. © of text by Avherald.com.
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