The pilots union at American Airlines said yesterday that a labor deal could be close if the bankrupt airline is willing to make certain key concessions, Reuters reported yesterday. The Allied Pilots Association union, locked in years of tense contract negotiations with the AMR Corp. unit, said that it wants a contract on par with other major carriers, namely Delta Air Lines, on issues such as pay. AMR declared bankruptcy last November, in part to reduce labor costs. While it has reached new contracts with its flight attendants' and ground workers' unions, it remains in negotiations with the pilot group.