EXHIBIT 99.1 May 9, 2003 Securities and Exchange Commission 450 Fifth Street N.W. Washington, DC 20549 Gentlemen: We have read Item 4 of Form 8-K dated April 23, 2003, of Mooney Aerospace Group, Ltd. and are in agreement with the first, fourth, fifth and sixth sentences contained in the first paragraph on page 1 therein. We disagree with the seventh sentence, as the company did not inform us of the Form 8-K filing and did not request a letter until May 6, 2003. We have no basis to agree or disagree with other statements of the registrant contained therein. Very truly yours, /s/ Ernst & Young LLP