STC ST04531CH

ST04531CH Global Navigation Science, Inc.

11100 North Airport Dr.

Hayden, ID 83835 Part 25 Federal Aviation Regulations.

A16WE The Boeing Company 737-700 Series / 737-800 Series

1. FAA Approved Airplane Flight Manual Supplement document number 23-002-FAA, Revision

(1), dated 7 FEB 2026, or later FAA Approved Revision is a required part of this modification.

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5/14/2021 3/10/2026 2/7/2026 for Paul Nguyen Manager, Central Certification Branch Compliance & Airworthiness Division

4 Installation of a Global Navigation Sciences (GNS) LUX LED Lamp in accordance with Master Data List 1040013, Revision (E), dated 6 FEB 2026, or later FAA Approved Revision.

ST04531CH 03/10/26 4

ST04531CH 03/10/26 Limitations and Conditions (continued):

2. The aircraft must be maintained in accordance with FAA accepted Instructions for Continued Airworthiness, Report No. 23-001-FAA, Revision (1), dated 2 FEB 2026, or later FAA accepted revision in addition to the basic airplane maintenance manuals.

3. This STC is applicable to all serial numbers for these Makes-Models-Series.

4. The installer must determine whether this design change is compatible with previously approved modifications.

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

Certification Basis:

Based on 14 CFR §§ 21.101, 21.115 and the FAA policy for significant changes in FAA Order 8110.48A, the certification basis for The Boeing Company 737-700 Series and 737-800 Series Installation of a Global Navigation Sciences (GNS) LUX LED Lamp is as follows:

a. The type certification basis for The Boeing Company 737-700 Series and 737-800 Series is shown on TCDS A16WE for parts not changed or not affected by the change.

b. The certification basis for parts changed or affected by the change since the reference date of application, 14 MAY 2021, is based upon TCDS A16WE. Based on 14 CFR § 21.101, 21.115 and the FAA policy for significant changes in FAA Order 8110.48A, the certification basis for this modification was determined to be:

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ST04531CH 03/10/26 Certification Basis (continued):

Regulations at the amendment level in TCDS A16WE

25.1(a,b)[Original], 25.301(a,b)[25-23], 25.303(-)[25-23], 25.305(a,b)[25-86],

25.561(c)[Original], 25.601(-)[Original], 25.603(a-c)[25-46], 25.605(a)[25-46],

25.611(-)[25-23], 25.613(a-c)[25-72], 25.625(a)[25-72], 25.789(a)[25-46],

25.1301(a-d)[Original], 25.1309(a,b,d,g)[Original], 25.1351(a(1))[25-72],

25.1353(a,b)[25-42], 25.1357(a,c)[Original], 25.1431(a,c)[Original], 25.1529(-)[25-54],

25.1581(a,b,d)[25-72], 25.1583(a-i)[25-72], 25.1585(a-e)[25-46], 25.1587(a,b)[25-72],

26.11(c)[26-0].

Regulations at later amendment level:

25.853(a)[25-116], 25.869(a(4))[25-113].

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