Secondary oil leak affecting Rolls-Royce Trent 900 engines

These engines have oil sediment in the high pressure (HP)/intermediate pressure (IP) turbine, a Qantas spokesman says, unable to specify the exact area affected. The engines do not have a stub pipe fault, he says.
"The only stub pipe [fault] we have found is on [an] aircraft awaiting delivery," the spokesman says. On 8 November, the Australian Transport Safety Bureau said three Trent 900s, including one on an A380 to be delivered to Qantas, were found with the stub pipe defect.

http://www.flightglobal.com/articles/2010/12/10/350824/secondary-oil-leak-affecting-rolls-royce-trent-900-engines.html