STC ST00362DE

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: ST00362DE This certificate issued to: EDO Fiber Science 506 N. Bill Mitchell Road P.O. Box 22540 Salt Lake City, CO 84122-0540 Part 25 of the Federal Aviation Regulations.

Original Product -Type Certificate Number: A20WE Make: Boeing Model: 747-400, -400D Description of Type Design Change:

Installation of a non-intrusive external separator for vacuum Waste Tanks in accordance with EDO Fiber Science Master Drawing List Document No. 02047, Rev. C, dated January 7, 1999, or later FAA approved revision.

1. Approval of this change in type design applies to the above model aircraft only. This approval should not be extended to aircraft of this model on which other previously approved modifications are incorporated unless it is determined that the interrelationship between this change and any of those other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that aircraft.

2. A copy of this Certificate and Instructions for Continued Airworthiness which define inspection and maintenance requirements, document report CM 38-32-13, Revision 2, dated January 6, 1999 or later FAA accepted revision are required and must be maintained as part of the permanent records for the modified aircraft.

3. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

Date of Application: June 25, 1997 Date Reissued:

Date of Issuance: January 11, 1999 Date Amended:

FEDERAL AVIATION Ronald F. May (Signature) Manager HOMINST RATION Northwest Mountain Region Denver Aircraft Certification Office (Title)