STC ST12102IB

IMPORT ST12102IB

JET AVIATION AG AESCHENGRABEN 6 4051 BASEL

SWITZERLAND Part 25 Title 14 Code of Federal Regulations A16WE 737-700, 737-800, 737-900, 737-900ER, 737-8, 737-9 The Boeing Company This STC is applicable to all serial numbers for Boeing Model 737-700, 737-800, 737-900, 737-900ER, 737-8, and 737-9 Series.

(See Continuation Sheet 3) 12/12/2024 08/14/2025 John Yoo Manager, International Validation Branch Compliance & Airworthiness Division Aircraft Certification Service 4 Installation of a Honeywell Aspire 400 SBB Satcom and/or an AMT-3800 high gain antenna in accordance with Jet Aviation AG Master Data List JBSL-M-03878MDL-001, Issue G, dated August 5, 2025, or later European Union Aviation Safety Agency (EASA) approved revision;

maintained in accordance with Jet Aviation AG Instructions for Continued Airworthiness Document No. JBSL-M-03878ICA-010, Issue B, dated May 8, 2025, or later EASA accepted revision, and JBSL-M-03878ICA-020, Issue A, dated May 8, 2025, or later EASA accepted revision; and operated in accordance with Jet Aviation AG Airplane Flight Manual Supplement Document No. JBSL-M-03878AFM-020, Issue B, or later EASA approved revision.

This STC covers the following 3 installation configurations:

- Configuration 1 – 737-8 and 737-9 models only: AMT-3800 antenna provision Partial installation consisting in the installation of the AMT-3800 antenna and the related structural modifications for the antenna and the Diplexer Low Noise Amplifier (DLNA) as an inactive provision. The antenna is installed between frames 727D and 727G for the 737-9 and between STA 500E and 500G for the 737-8.

- Configuration 2 - All models: Satcom installation using an existing antenna Complete SATCOM system installation and activation using an AMT-3800 HGA antenna installation and DLNA provisions previously installed through either STC Configuration 1 or another FAA approved STC.

- Configuration 3 – 737-8 and B37-9 models only: Complete Satcom installation Complete SATCOM system installation and activation including all structural provisions and equipment. This configuration consists of installing simultaneously configuration 1 and 2.

Installing only Configuration 2 requires an AMT-3800 HGA antenna installation and DLNA provisions through a separate FAA STC. (See Continuation Sheet 4)

The aircraft must be operated in accordance with the limitations section of the flight manual supplement referenced in the Description section.

The aircraft must be maintained in accordance with the airworthiness limitations section of the ICA referenced in the Description section.

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

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

Certification Basis:

14 CFR Part 25, Amendment 146:

25.23, 25.25, 25.27, 25.29, 25.111, 25.113, 25.121, 25.123, 25.147, 25.177, 25.181, 25.251(b)

(d), 25.301, 25.302, 25.303, 25.305, 25.307, 25.321, 25.337(a), 25.341, 25.365, 25.561, 25.571

(a)(b)(e), 25.581(b)(1), 25.601, 25.603, 25.605, 25.607, 25.609, 25.611(a), 25.613, 25.619,

25.625, 25.629, 25.631, 25.789(a), 25.841, 25.869(a), 25.899, 25.1301, 25.1302, 25.1307,

25.1309, 25.1310, 25.1319, 25.1322, 25.1351, 25.1353, 25.1357, 25.1360, 25.1401, 25.1419(a),

25.1431, 25.1457(a), 25.1460(a), 25.1501, 25.1529, 25.1541, 25.1581, 25.1585, 25.1701,

25.1703, 25.1705, 25.1707, 25.1709, 25.1711, 25.1713, 25.1715, 25.1717, 25.1719, 25.1721,

25.1729.

Equivalent Level of Safety Findings

1. For 737-9: ELOS Memo ST19358IB-T-B-03,Equivalent Level of Safety Finding for Vibration/buffeting compliance criteria for large external antenna installation

2. For 737-8: ELOS Memo ST19358IB-T-PCRI-0000492, Equivalent Level of Safety Finding forVibration/buffeting compliance criteria for large external antenna installation ----------END---------- 4 4 Add Page