STC SA2405CE-D

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA2405 CE-D This certificate issued to: Duncan Aviation Inc.

3701 Aviation Road Lincoln, NE 68524 Part 25 of the Federal Aviation Regulations.

Original Product -Type Certificate Number: AI6NM Make: Israel Aircraft Industries Model: 1125 Westwind Astra, Astra SPX Description of Type Design Change: Installation of Garrett Model GTCP36-150 (W) Auxiliary Power Unit operating as a nonessential electrical and bleed air source for on board electrical and environmental systems in Israel Aircraft Industries 1125 Westwind Astra and Astra SPX Airplanes. Data Required: (1125 Astra) 1) Duncan Aviation, Inc, Drawing List, No. AST001, dated September 15, 1988, or later "FAA Approved" revision. 2) Duncan Aviation, Inc, FAA approved Airplane Flighi Manual Supplement, dated September 16, 1988, or later "FAA Approved" revision. (Astra SPX) 1) Duncan Aviation, Inc, Drawing List, No.

AST001, dated January 5, 1996, or later "FAA Approved" revision. 2) Duncan Aviation, Inc, FAA approved Airplane Flight Manual Supplement, dated June 7. 1996 or later "FAA Approved" revision.

Limitations and Conditions: Compatibility of this design change with previously approved modifications must be determined by the installer.

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 03, 1988 Date Reissued: October 25, 2005 Date of Issuance: September 16, 1988 Date Amended: June 07, 1996 FEDERAL AVIATION By Direction of the Administrator Sun E. Caig (Signature) Steven E. Craig TOMINISTRATON DAS Administrator, DAS-501013-CE Duncan Aviation, Lincoln, Nebraska (Title)