text: Delta #39;s debt plan raises concerns; US Airways labor deal due Delta Air Lines #39; plan to restructure some of its debt outside of bankruptcy has raised concerns among credit analysts who believe the move could be tantamount to defaulting on the money the struggling carrier owes. 
inputs: Delta #39;s debt plan raises concerns; US Airways labor deal due Delta Air Lines #39; plan to restructure some of its debt outside of bankruptcy has raised concerns among credit analysts who believe the move could be tantamount to defaulting on the money the struggling carrier owes. 