According to The Aviation Herald, the aircraft (registration B-2856) was performing flight CA-4307 from Chengdu to Guangzhou on 4th June 2013, when “a large bang was heard from the nose section of the aircraft and the aircraft performance worsened”.
The Boeing 757 was returned to Chengdu for safety reasons and post flight examinations confirmed that the aircraft collided with a foreign object… but what type of object would cause this much damage?
Photo is below - more details and photos here: http://www.theaviationwriter.com/2013/0 ... photo.html
