FILE _ A Singapore Airlines Airbus A-380 has its engine checked, at the Airport Zuerich, in Switzerland, in this Nov. 4, 2010 file photo. Tests uncovered oil stains in three Rolls-Royce engines on ... more 
FILE _ A Singapore Airlines Airbus A-380 has its engine checked, at the Airport Zuerich, in Switzerland, in this Nov. 4, 2010 file photo. Tests uncovered oil stains in three Rolls-Royce engines on Singapore Airlines' A380 superjumbos, prompting the airline to yank the planes from service Wednesday Nov. 10, 2010 just two days after Qantas announced troubling oil leaks on their A380s. less 
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Associated Press | Photo By Keystone, Steffen Schmidt, File
Mon, Nov 15, 2010 4:34 PM EST