EXHIBIT 99.2 - ------------ CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report on Form 10-K for the fiscal year ended February 28, 2003 as filed with the Securities and Exchange Commission by Environmental Tectonics Corporation (the "Company") on the date hereof (the "Report"), I, Duane D. Deaner, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to ss. 906 of the Sarbanes-Oxley Act of 2002, that: (1) The 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 Report fairly presents, in all material respects, the financial condition and results of operations of the Company. Duane D. Deaner ------------------- Duane D. Deaner Chief Financial Officer May 29, 2003