EX-99.1 21 p67334exv99w1.txt EX-99.1 EXHIBIT 99.1 CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 (SUBSECTIONS (a) AND (b) OF SECTION 1350, CHAPTER 63 OF TITLE 18, UNITED STATES CODE) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of Title 18, United States Code), the undersigned officer of Mesa Air Group, Inc., a Nevada corporation (the "Company"), does hereby certify with respect to the Annual Report of the Company on Form 10-K for the year ended September 30, 2002 as filed with the Securities and Exchange Commission (the "10-K Report") that: (1) the 10-K Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and (2) the information contained in the 10-K Report fairly presents, in all material respects, the financial condition and results of operations of the Company. Dated: December 20, 2002 /S/ JONATHAN G. ORNSTEIN ---------------------------------------- Jonathan G. Ornstein Chief Executive Officer