Asiana A333 near Seoul on Jul 14th 2015, engine shut down in flight
Last Update: September 24, 2018 / 14:40:33 GMT/Zulu time
Incident Facts
Date of incident
Jul 14, 2015
Classification
Incident
Airline
Asiana Airlines
Flight number
OZ-573
Departure
Seoul, South Korea
Destination
Tashkent, Uzbekistan
Aircraft Registration
HL8282
Aircraft Type
Airbus A330-300
ICAO Type Designator
A333
On Jul 28th 2015 the French BEA reported in their weekly bulletin that there was thermal damage to the engine external and nacelle. The occurrence was rated a serious incident and is being investigated by South Korea's ARAIB.
On Sep 24th 2018 the ARAIB released their final report in Korean (Editorial Note: to serve the purpose of global prevention of repeat a release in English would be necessary and possible as every investigator is able to speak/write English, a Korean only release does not achieve this purpose as set by ICAO annex 13 and just forces many readers to waste much more time and effort each in trying to understand the report) concluding the probable cause of the serious incident was:
cracks in the engine's fuel nozzle junction caused fuel to leak which caused an inflight fire in the bottom part of the engine.
Contributing factors were the fuel nozzle's support flange and inlet fitting of the fuel nozzle. It was determined that the cracks occurred due to a problem in the process of bonding the braze.
The ARAIB reported the aircraft was climbing through 3970 feet when the right hand engine indicated a fire warning, the warning disappeared again and a fire loop B fault was indicated. As all other engine indications were normal, the crew decided to continue the flight. Climbing through 27500 feet the crew reported a low oil pressure indication for the right hand engine. The crew reduced the engine thrust to idle, the low pressure indication continued and the crew shut the engine down. The crew decided to return to Seoul and performed an overweight landing with both autopilots engaged (autoland) on runway 34.
An initial visual inspection after landing revealed the bottom part of the right hand engine was discoloured, the engine cowl could not be opened due to damage. A subsequent examination after the cowl was forced open revealed the bottom portion of the engine had received fire damage while the upper portion was basically undamaged. Oil pump, fuel nozzle, engine start up and AC generators were badly burned. There was no damage to other parts of the airframe.
(Editorial note: due to the highly technical nature of the analysis, that is almost certainly not correctly understood despite all attempts wasting a lot of resources, we skip the analysis).
Incident Facts
Date of incident
Jul 14, 2015
Classification
Incident
Airline
Asiana Airlines
Flight number
OZ-573
Departure
Seoul, South Korea
Destination
Tashkent, Uzbekistan
Aircraft Registration
HL8282
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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