-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, JqlDGorkCYkVlPxvVYf4H4OzDfFgx37LJPjTuXJ/V5LvRQFZGfEAa3CBKV1NpUX/ Wpay/X8lsj6Wy2g1wui2zg== 0001036050-99-000205.txt : 19990210 0001036050-99-000205.hdr.sgml : 19990210 ACCESSION NUMBER: 0001036050-99-000205 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 19990209 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: ENVIRONMENTAL TECTONICS CORP CENTRAL INDEX KEY: 0000033113 STANDARD INDUSTRIAL CLASSIFICATION: INDUSTRIAL INSTRUMENTS FOR MEASUREMENT, DISPLAY, AND CONTROL [3823] IRS NUMBER: 231714256 STATE OF INCORPORATION: PA FISCAL YEAR END: 0228 FILING VALUES: FORM TYPE: SC 13G/A SEC ACT: SEC FILE NUMBER: 005-18312 FILM NUMBER: 99525067 BUSINESS ADDRESS: STREET 1: COUNTY LINE INDUSTRIAL PARK CITY: SOUTHAMPTON STATE: PA ZIP: 18966 BUSINESS PHONE: 2153559100 MAIL ADDRESS: STREET 1: COUNTYLINE INDUSTRIAL PARK CITY: SOUTHAMPTON STATE: PA ZIP: 18966 FORMER COMPANY: FORMER CONFORMED NAME: ENVIRONMENTAL TECHNOLOGY CORP DATE OF NAME CHANGE: 19730208 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: EMERALD ADVISERS INC /PA/ /ADV CENTRAL INDEX KEY: 0000881235 STANDARD INDUSTRIAL CLASSIFICATION: [] IRS NUMBER: 232664857 STATE OF INCORPORATION: PA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: 1857 WILLIAM PENN WAY STREET 2: STE 204 CITY: LANCASTER STATE: PA ZIP: 17601 BUSINESS PHONE: 7173961116 MAIL ADDRESS: STREET 1: P O BOX 10666 CITY: LANCASTER STATE: PA ZIP: 17605 FORMER COMPANY: FORMER CONFORMED NAME: EMERALD ADVISERS INC /PA/ /ADV DATE OF NAME CHANGE: 19970207 SC 13G/A 1 SCHEDULE 13G AMENDMENT #1 ------------------------------- / OMB APPROVAL / ------------------------------- / OMB Number: 3235-0145 / / Expires: August 31, 1999 / / Estimated average burden / / hours per response....14.90 / ------------------------------- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Environmental Tectonics Corporation - -------------------------------------------------------------------------------- (Name of Issuer) Environmental Tectonics Corporation Common Stock par value $0.10 - -------------------------------------------------------------------------------- (Title of Class of Securities) 294092101 ------------------------------ (CUSIP Number) *The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. CUSIP NO.294092101 Page 2 of 4 --------- - ------------------------------------------------------------------------------ NAMES OF REPORTING PERSONS. 1 I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY). Emerald Advisors, Inc. - ------------------------------------------------------------------------------ CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) 2 (a) [_] (b) [_] - ------------------------------------------------------------------------------ SEC USE ONLY 3 - ------------------------------------------------------------------------------ CITIZENSHIP OR PLACE OF ORGANIZATION 4 Pennsylvania - ------------------------------------------------------------------------------ SOLE VOTING POWER 5 NUMBER OF 218,725 SHARES ----------------------------------------------------------- SHARED VOTING POWER BENEFICIALLY 6 OWNED BY 0 ----------------------------------------------------------- EACH SOLE DISPOSITIVE POWER 7 REPORTING 311,015 PERSON ----------------------------------------------------------- SHARED DISPOSITIVE POWER WITH 8 0 - ------------------------------------------------------------------------------ AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 9 311,015 - ------------------------------------------------------------------------------ CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES 10 (SEE INSTRUCTIONS) [_] - ------------------------------------------------------------------------------ PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 11 10.1% - ------------------------------------------------------------------------------ TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) 12 IA - ------------------------------------------------------------------------------ *SEE INSTRUCTION BEFORE FILLING OUT! SCHEDULE 13G PAGE 3 OF 4 EMERALD ADVISERS, INC. ITEM 1. (a) The name of the issuer is Environmental Tectonics Corporation. (b) The address of issuer's principal executive offices is County Line Industrial Park, 125 James Way, Southhampton, PA 18966. ITEM 2. (a) The name of the person filing is Emerald Advisers, Inc. (b) The address of the principal office of the person filing is 1857 William Penn Way, Lancaster, Pennsylvania 17601. (c) The state of organization is Pennsylvania. (d) The title of class of security is common stock par value $0.10. (e) The CUSIP number is 294092101. ITEM 3. (e) The person filing is an Investment Adviser registered under Section 203 of the Investment Advisers Act of 1940. ITEM 4. (a) The amount beneficially owned is 311,015 shares of common stock. (b) The percent of class is 10.1%. (c)(i) The number of shares as to which Emerald Advisers, Inc. has sole voting power is 218,725. (c)(ii) The number of shares as to which Emerald Advisers, Inc. has shared voting power is 0. (c)(iii) The number of shares as to which Emerald Advisers, Inc. has sole dispositive power is 311,015. (c)(iv) The number of shares as to which Emerald Advisers, Inc. holds shared dispositive power is 0. SCHEDULE 13G PAGE 4 OF 4. EMERALD ADVISERS, INC. ITEM 5. Not applicable. ITEM 6. Other persons have the right to receive and/or the power to direct the receipt of dividends from, and the proceeds from the sale of, such securities. ITEM 7. Not applicable. ITEM 8. Not applicable. ITEM 9. Not applicable. ITEM 10. By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired in the ordinary course of business and were not acquired for the purpose of and do not have the effect of changing or influencing the control of the issuer of such securities and were not acquired in connection with or as a participant in any transaction having such purposes or effect. SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. --------------------------------- Date --------------------------------- Signature Scott L. Rehr, Senior Vice President -----END PRIVACY-ENHANCED MESSAGE-----