Air China B772 near Beijing on Aug 12th 2009, engine surge
Last Update: April 6, 2020 / 22:48:47 GMT/Zulu time
A replacment aircraft reached Shenzhen with a delay of 3.5 hours.
A passenger on board reported, that he had been dozing off, when about 20 minutes into the flight he heard two loud bangs from the right hand engine (PW4077) and other passengers saw smoke and streaks of flames from the engine. The TV screens in the cabin flickered. A few seconds later a strong burning smell arrived in the cabin. The captain announced, that the right hand engine had suffered a minor problem, so that he had shut down the engine and was returning to Beijing on the left hand engine. The passenger noticed observing the sun, that the airplane turned around and started to descend.
The passenger report prompted Chinese media to report an engine fire, which was promptly denied by Beijing's Airport Authority and the airline.
Air China said, that the cause of the technical problem is still under investigation.
On Apr 6th 2020 The Aviation Herald received a brief CAAC incident report stating the aircraft was climbing through 5400 meters out of Beijing when the right engine surged and failed, the engine fire indication activated. The crew shut the engine down and performed the checklists discharging the fire agent into the engine. The aircraft returned to Beijing for a safe landing. A post flight inspection found the tail cone of the engine was missing, the engine was leaking oil. The second stage of the high pressure turbine suffered imbalance due to the failure of a number of rotor blades causing high vibration, which in turn caused the tail cone to separate and cause damage to the fire loops and the main supply pipe for engine oil causing the leak. Due to the damage to the fire loops a fire warning activated although no engine fire occurred.
This article is published under license from Avherald.com. © of text by Avherald.com.
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