STC SA265NW

Number SA265NW This certificate, issued to R-S Sales, Inc.

170 O’Connor Road Lewiston, ID 83501 Part 21.25(a)(1) of the Federal Aviation Regulations, and FAR Part 36, effective 11/22/88.

Original ProductType Certificate Number: A9SW Make: Air Tractor Model: AT-300, AT-301, AT-302, AT-400, and AT-400A (Restricted Category)

Description of the Type Design Change: Installation of Automatic Flagman Model No. 4 (Dispenser System) on the upper surface of the right wing root in accordance with: 1) North American Industries, Inc., Drawing No.

105 and 125 and Installation Instructions No. 300-1000, or 2) Automatic Flagman Installation Instructions No.

300-1000, revised May 23, 1989, and Parts Manufacturing Drawing No. 105, Sheets 1 through 8, revised May 23, 1989; 120, dated May 17,1982; and 125, dated April 15, 1982, or later FAA approved revisions.

Limitations and Conditions: Approval of this change in type design applies to the above model aircraft only.

This approval should not be extended to other aircraft of these models on which other previously approved modifications are incorporated unless it is determined by the installer, that the relationship 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. A copy of this Certificate must be maintained as part of the permanent records for the modified aircraft.

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: February 19, 1976 Date reissued: 07/03/80; 08/27/01 Date of issuance: October 15, 1976 Date amended: 10/06/78; 07/03/80; 08/10/81;

05/23/89; 08/27/01

(Signature) Acting Manager, Seattle Aircraft Certification Office (Title)