STC ST12413IB

IMPORT ST12413IB

JET AVIATION AG AESCHENGRABEN 6 4051 BASEL

SWITZERLAND Part 25 Title 14 Code of Federal Regulations A12EA Gulfstream Aerospace Corporation GV-SP Serial Number 5092

1. This STC is applicable to GV-SP Serial Number 5092.

2. Operation must be in accordance with the Limitation Section of the Aircraft Flight Manual Supplement listed in the Description of Type Design section of this STC.

(See Limitations and Conditions Continued on Page 3 of 4) 02/27/2026 06/16/2026 John Yoo Manager, International Validation Branch Compliance & Airworthiness Division Aircraft Certification Service 4

1. Wireless LAN (WLAN) activation in accordance with Jet Aviation AG Master Data List (MDL) JBSL-M-01123MDL-01, Issue 2, dated October 29, 2020, or later EASA approved revisions. This STC demonstrates immunity to IEE 802.11 a/b/g/n/ac passengers’ PED transmissions on Gulfstream Aerospace Corporation Model GV-SP Serial Number 5092 aircraft.

(See Description of Type Design Change on Page 3 of 4)

2. Operation in accordance with Jet Aviation AG Airplane Flight Manual Supplement Document Number JBSL-M-01123AFM-04, Issue 1, dated November 03, 2020, or later EASA approved revisions.

3. This change is applicable to airplanes previously fitted with properly certified:

-Wireless Access Point(s) capable to transmit only on IEE802.11a/b/g/n/ac protocols, or a subset of these protocols, with not more than 1000 mW transmitted power capacity.

-The WAP power supply must be supplied through non-essential power bus, controlled through a master power control switch in the cockpit.

-Spurious electromagnetic emissions of the equipment have been shown to not affect essential or required systems when WLAN is in use (DO-160E section 21 category M or equivalent).

-Equipment was shown to not present hazards in case of depressurization (DO-160() section 4 category A1 or equivalent).

-WLAN antenna(s) in the cabin area, located not closer than 1 m from any potentially vulnerable essential or required electronic system and not closer than 20 cm from airplane occupants.

- Procedure describing the method of WLAN activation/deactivation.

4. The installation of the WLAN Access Point (WAP) is not part of this STC, however, the system specifications have been included as prerequisites in the Engineering Order specified in the MDL listed in the Description of Type Design Change of this STC.

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

6. 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 on Page 4 of 4)

Based on title 14 Code of Federal Regulations (CFR) 21.115 and 21.101, and the FAA policy for design changes that are identified as not significant in FAA Order 8110.48A, the type certification basis for the modified Gulfstream Aerospace Corporation Model GV-SP Serial Number 5092 is as follows:

a. The type certification basis for the Gulfstream Aerospace Corporation Model GV-SP Serial Number 5092 as shown on Type Certificate Data Sheet (TCDS) A12EA for parts not changed or not affected by the change.

b. The type certification basis for the Gulfstream Aerospace Corporation Model GV-SP Serial Number 5092 for parts changed or affected by the change is TCDS A12EA with the following exceptions:

14 CFR Part 25 at Amendment 1-145 ----------END---------- 4 4