STC ST12216IB

Number   This certificate issued to:

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

(See continuation on Page 3) 05/16/2025 3

1) Modification of the cabin configuration from DAL01 layout to DAL02 layout (MOD AI0321) in accordance with Airbus STC Solutions Master Drawing List MDL AI0321 Revision E, dated October 30, 2025 or later approved revisions.

(See continuation on Page 3) November 19, 2025

Number   I Transferr Endorsementt Transfer the ownership of Supplemental Type Certificate Number:

Too (Name and address of transferee):

Date oI transfer:

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United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate  (Continuation Sheet) Number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escription of Type Design Change (continued):

2) Operation and Maintenance must be in accordance with the supplemental technical publications listed in Airbus STC Solutions Document D25024578 Issue B, dated October 1, 2025 or later approved revisions.

2) 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.

3) This STC is applicable to all make and model of the A350-941 series.

4) The following are prerequisite modifications prior to installation of this STC:

- MOD 108201 - Define and Install Equipment/Furnishing for Version DAL01

- MOD CJ2155 - Post TOT Cabin Customization

- MOD AI0337 - Install provisions to connect IFC to IFE

- MOD AI0322 - Med com removal

- EO 2560-01544 - Evacuation Preparation Checklist Holder A350 Replace

- EO 2560-01557 - Security Kit - A350 Installation

- EO 2560-01572 - Red Medical Pouch - A350 Replace

- EO 2620-01224 - Replacement Halon Fire Extinguisher by Non Halon Extinguisher Certification Basis:

The certification basis for this modification is the same as the basic aircraft as outlined in FAA TCDS T00063IB.

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