** FILE ** In a file photo Delta and Delta Connection jet aircraft appear on the tarmac near the terminal at Boston's Logan International Airport, in Boston, Thursday, Sept. 23, 2004. Delta Air Lines Inc., hobbled by high fuel costs and heavy debt and pension obligations, filed for bankruptcy protection from its creditors Wednesday, Sept. 14, 2005, becoming the third major carrier to enter Chapter 11 since the 2001 terrorist attacks. (AP Photo/Steven Senne)