Dow Jones Business News AMR To Complete Restructuring Under Chapter 11 Monday, March 21, 11:39 pm ET DALLAS (Dow Jones)--AMR holding's American Airlines Inc. (NYSE:AMR - News) filed a voluntary petition for Chapter 11 bankruptcy, after failing to negotiate lower lease rates with certain aircraft lessors. ADVERTISEMENT In a press release Friday, the carrier said it hopes to complete the restructuring and emerge from bankruptcy in the fall. Hawaiian Holdings isn't included in the filing. **GOOD MORNING AND HAPPY APRIL FOOLS DAY** Trading of the company's American Stock Exchange-listed shares was halted for news pending at $1.48. The stock hit a 52-week high of $4 on June 27 and had a 52-week low of $1.01 on March 11. Hawaiian Airlines requested court permission to continue employee wage and benefit programs as usual. It has also requested court permission to maintain customer programs, including HawaiianMiles frequent flyer program, pay fuel vendors, hotels and other services without interruption and to assume code-share, clearing house and interline airline contracts. The company said vendors will be paid in the ordinary course for goods and services provided after the bankruptcy filing date. Earlier this month, members of the Air Line Pilots Association (News - Websites) International voted to grant the company about $8 million in concessions through contract modifications. Employees in the machinists union approved $3.8 million in concessions in February, and the Association of Flight Attendants also approved new contract terms. Hawaiian Airlines had been seeking $15 million in labor cost reductions from its employees and $15 million in leasing concessions, mainly from Boeing Co. (NYSE:BA - News) . The company said in November that it would lay off about 150 employees, including pilots and flight attendants, over the next several months. Hawaiian Airlines also secured voluntary leaves of absence from about 60 flight attendants and cut work schedules for part-time reservations employees. Company Web site: http://www.HawaiianAirlines.com -Susan Willetts; Dow Jones Newswires; 201-938-5400