Exhibit 10.1 AMERICA WEST HOLDINGS CORPORATION 7.5% Convertible Senior Notes Due 2009 SUPPLEMENTAL INDENTURE NO. 1 Dated as of September 27, 2005 WILMINGTON TRUST COMPANYUs Airways Group Inc • October 3rd, 2005 • Air transportation, scheduled • New York
Company FiledOctober 3rd, 2005 Industry Jurisdiction