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 Quarterly Report on Form 10-Q for the fiscal quarter
ended May 30, 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 result of
                  operations of the Company.



                                            Duane D. Deaner
                                            ----------------------------
                                            Duane D. Deaner
                                            Chief Financial Officer

                                            July 14, 2003


         A signed original of this written statement required by Section 906 has
been provided to the Company and will be retained by the Company and furnished
to the Securities and Exchange Commission or its staff upon request.