STC SA00345BO

the Civil Air Regulations and Part 23 of the Title 14 Code of Regulations.

SA00345BO ATI Engineering Services, LLC 469 Airport Road, Hangar 9 Johnstown, Pennsylvania 15904 Part 3

A9EA Viking Air Limited DHC-6-400

1. The Airplane Flight Manual Supplement FMS-131023, Revision -, dated July 21, 2014, or later FAA-approved revision must be carried on the airplane during all flights.

2. Maintenance must be in accordance with the Instructions for Continued Airworthiness (ICA) ICA-131023, Revision -, dated July 22, 2014, or later FAA-approved revision.

3. The ICA must be made available to the operator at the time of installation.

(Limitations and Conditions continued on page 3 of 4) 12/20/2013 08/29/2019 07/15/2024 09/19/2014 Christina M. Underwood Manager, East Certification Branch Compliance & Airworthiness Division Aircraft Certification Service 4 Installation of an NVIS / NVG Compatible Lighting System in accordance with Installation Drawing List IDL-131023, Revision 1, dated August 27, 2014, or later FAA-approved revision.

11/30/2021

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SA00345BO 07/15/2024 Limitations and Conditions continued:

4. 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.

5. Once an airplane is modified with this STC, any future interior or exterior modification that adds or changes systems that emit or reflect light has the potential to adversely affect NVG compatibility and may require a reevaluation by the responsible FAA Aircraft Certification Office.

6. Compatibility of this design with previously approved modifications must be determined by the installer.

Certification Basis:

Based on 14 CFR § 21.115 and § 21.101, and the FAA policy for design changes that are identified as not significant in FAA Order 8110.48, the certification basis for the Viking Air Limited DHC-6-400 aircraft with the installation of the NVIS / NVG Compatible Lighting System is as follows:

a. The type certification basis for parts not changed or not affected by the change is shown on TCDS A9EA.

b. The modification certification basis for parts changed or affected by the change since the reference application date, December 20, 2014, is based upon 14 CFR Part 23 as amended by Amendment 23-62 as follows:

Regulations at the latest amendment 23-0 through 23-62

23.1, 23.25(a), 23.771(a), 23.773(a)(2), 23.853(a), 23.867(a), 23.1301, 23.1308, 23.1309(a)(c),

23.1311(a)(1)(2), 23.1321(e), 23.1322, 23.1351(a), 23.1357(a)(b)(c), 23.1359(a)(c), 23.1365(a)

(b)(d)(e), 23.1367, 23.1381(a)(b), 23.1383, 23.1385, 23.1401, 3 4 Add Page

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23.1431(b), 23.1501, 23.1523, 23.1525, 23.1527, 23.1529, 23.1559(c), 23.1581, 23.1583(g)(h)

Regulations at an intermediate amendment None

Regulations at the amendment level in TCDS A9EA None ------------------------------------------------------END-------------------------------------------------- 3 4 Add Page