STC SA02674SE

Number SA02674SE

This certificate, issued to Aviation Specialties Unlimited, Inc.

4632 West Aeronca Street Boise, ID 83705

Part 23 of the Federal Aviation Regulations.

Original ProductType Certificate Number: A17SW Make: Air Tractor Model: AT-402

Description of the Type Design Change: Installation of a Supplemental Lighting System in accordance with Aviation Specialties Unlimited (ASU) Master Drawing List (MDL) MDL-402004-3, Revision IR, dated December 20, 2019, or later Federal Aviation Administration (FAA)-approved revision. Maintained in accordance with the Instructions for Continued Airworthiness (ICA) ICA-AT402004-4, Revision IR, dated October 1, 2019, or later FAA-accepted revision. Operated in accordance with the Aircraft Flight Manual Supplement (AFMS) FMS- AT402004-6, Revision IR, dated October 1, 2019, or later FAA-approved revision.

Limitations and Conditions: This Supplement Type Certificate applies to the models listed above and only to the specific serial number listed on ASU MDL-402004-3, Revision IR, dated December 20, 2019, or later FAA- approved revision. This aircraft employs Night Vision Imaging System lighting, commonly named NVIS that has been certified to ensure the aircraft is compatible with Night Vision Goggles (NVG) .

Date of application: September 27, 2019 Date reissued Date of issuance: January 22, 2020 Date amended

FAA FORM 8110-2 (5/14) PAGE 3 OF 3 PAGES By direction of the Administrator

(Signature)

Manager, Seattle ACO Branch (Title)

Number SA02674SE

Aviation Specialties Unlimited, Inc.

Issued: January 22, 2020 Reissued:

Amended:

Limitations and Conditions: (cont’d)

For this reason, interior and exterior modifications that add or change systems that emit or reflect light have the potential to alter or change the NVIS lighting vs. NVG compatibility. Compatibility of this design with subsequent modifications must be determined by the installer. The determination of compatibility with modifications that emit or reflect light may require a re-evaluation by an FAA aircraft certificate office. Installation of this NVIS system does not authorize the operator to use NVGs. If the type of operation requires an operational authorization, the operator must coordinate with the FAA or with the responsible aviation authority to obtain this authorization. A copy of this certificate, the MDL, the ICA, and the AFMS, must be maintained as part of the permanent record s 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.

Certification Basis:

The certification basis for this modification is based upon 14 CFR part 23 amendment level as specified in Type Certificate Data Sheet (TCDS) A17SW, except for §23.1309 (a)(1)(c) regulation for which compliance was demonstrated at the Amendment 23-14.

-END-

FAA FORM 8110-2 (5/14) PAGE 3 OF 3 PAGES