US Airways 2006 Annual Report Download - page 80

Table of Contents
Report of Independent Registered Public Accounting Firm
The Board of Directors and Stockholders
US Airways Group, Inc.:
We have audited management's assessment, included in the accompanying Management's Annual Report on Internal Control over
Financial Reporting, that US Airways Group, Inc. ("US Airways Group" or the "Company") maintained effective internal control over
financial reporting as of December 31, 2006, based on criteria established in Internal Control — Integrated Framework issued by the
Committee of Sponsoring Organizations of the Treadway Commission (COSO). The Company's management is responsible for
maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial
reporting. Our responsibility is to express an opinion on management's assessment and an opinion on the effectiveness of the Company's
internal control over financial reporting based on our audit.
We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States).
Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over
financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over
financial reporting, evaluating management's assessment, testing and evaluating the design and operating effectiveness of internal control,
and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable
basis for our opinion.
A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability
of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting
principles. A company's internal control over financial reporting includes those policies and procedures that (1) pertain to the
maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the
company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in
accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in
accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention
or timely detection of unauthorized acquisition, use, or disposition of the company's assets that could have a material effect on the
financial statements.
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also,
projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of
changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.
In our opinion, management's assessment that the Company maintained effective internal control over financial reporting as of
December 31, 2006, is fairly stated, in all material respects, based on criteria established in Internal Control — Integrated Framework
issued by COSO. Also, in our opinion, US Airways Group maintained, in all material respects, effective internal control over financial
reporting as of December 31, 2006, based on criteria established in Internal Control — Integrated Framework issued by COSO.
We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the
consolidated balance sheets of US Airways Group and subsidiaries as of December 31, 2006 and 2005, and the related consolidated
statements of operations, stockholders' equity and comprehensive income, and cash flows for each of the years in the three-year period
ended December 31, 2006, and our report dated February 27, 2007 expressed an unqualified opinion on those consolidated financial
statements.
/s/ KPMG LLP
Phoenix, Arizona
February 27, 2007
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