STC SA12273IB

IMPORT SA12273IB MT-Propeller Entwicklung GmbH Flugplatzstrasse 1 94348 Atting Germany Part 23 Title 14 Code of Federal Regulations A00009CH Cirrus Design Corporation

SR22

1. Installation of the MT-Propeller Entwicklung GmbH MTV-9-D/198-52() propeller on the Cirrus Design Corporation SR22 aircraft must be done in accordance with the MT-Propeller Entwicklung GmbH Master Documentation List (MDL), Doc. # E-4549 Revision 3, dated November 27, 2025, or later European Union Aviation Safety Agency (EASA) accepted revsions, and the Installation Instructions, Doc # E-4552, Revision 1, dated September 15, 2025, or later EASA accepted revisions.

1. This Supplemental Type Certificate (STC) is applicable to all serial numbers for this Make-Model.

(See continuation sheet 3) October 1, 2025 January 22, 2026 John Yoo Manager, International Validation Branch Compliance & Airworthiness Division Aircraft Certification Service 3

IMPORT SA12273IB 3

IMPORT SA12273IB Date Issued: January 22, 2026

Description of Type Design Change (continued):

2. Maintenance must be in accordance with the MT-Propeller Entwicklung GmbH Instructions for Continued Airworthiness, Doc. # E-4553, Revision 0, dated September 9, 2025, or later EASA accepted revisions.

3. Operations must be in accordance with the MT-Propeller Entwicklung GmbH Airplane Flight Manual Supplement, # E-4551, Revision 1, dated September 15, 2025, or later EASA approved revisions.

2. The aircraft must be operated in accordance with the Limitations section of the Airplane Flight Manual Supplement referenced in the Description section.

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

4. 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 Title 14 Code of Federal Regulations (CFR) 21.115 and 21.101, and the Federal Aviation Administration (FAA) policy for design changes that are identified as not significant in FAA Order 8110.48, the type certification basis for the modified Cirrus Design Corporation SR22 is as follows:

a. The type certification basis for the Cirrus Design Corporation SR22 is as shown on Type Certification Data Sheet (TCDS) A00009CH for areas not changed or not affected by the change.

b. The type certification basis for the Cirrus Design Corporation SR22 for areas changed or affected by the change is as shown on TCDS A00009CH with the following exceptions:

• 14 CFR Part 36 at Amendment 36-32.

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