Problems in manufacturing process led to Trent 900 failure: ATSB

The Australian Transport Safety Bureau (ATSB) says that a problem in the "manufacturing process" led to the 4 November uncontained engine failure on a Rolls-Royce Trent 900 powering a Qantas Airways A380.

Investigations at Rolls-Royce facilities in Derby revealed an "area of fatigue cracking" within a stub pipe that feeds oil to the High Pressure (HP)/Intermediate Pressure (IP) bearing structure.

Full Text: http://www.flightglobal.com/articles/2010/12/03/350485/problems-in-manufacturing-process-led-to-trent-900-failure.html