STC SA12044IB

IMPORT SA12044IB MT-Propeller Entwicklung GmbH Flugplatzstrasse 1 94348 Atting Germany Part 23 Title 14 Code of Federal Regulations A7CE Textron Aviation Inc.

414A

1. Installation of the MT-Propeller Entwicklung GmbH MTV-14-D-C-F/CF188-30() propeller on the Textron Aviation Inc. 414A aircraft must be done in accordance with the MT-Propeller Entwicklung GmbH Master Documentat List (MDL), Doc. # E-1757, Revision 2, dated March 10, 2025, and the Installation Instructions, Doc # E-1759, Original Issue, dated April 30, 2009, or later European Union Aviation Safety Agency (EASA) accepted revisions. This includes those aircraft that were modified with FAA Supplemental Type Certificates (STCs) SA4546SW-D (RAM 4) or SA09105SC-D (RAM7).

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

(See continuation sheet 3) October 15, 2024 June 4, 2025 John Yoo Manager, International Validation Branch Compliance & Airworthiness Division Aircraft Certification Service 3

IMPORT SA12044IB 3

IMPORT SA12044IB Date Issued: June 4, 2025

Description of Type Design Change (continued):

2. Maintenance must be in accordance with the MT-Propeller Entwicklung GmbH Instructions for Continued Airworthiness, Doc. # E-1760, Original Issue, dated April 30, 2009, or later EASA accepted revisions.

3. Operations must be in accordance with the MT-Propeller Entwicklung GmbH Airplane Flight Manual Supplement, # E-1758, Revision 2, dated March 10, 2025, or later EASA approved revisions.

2. The aircraft must be operated in accordance with the Limitations sections 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 Textron Aviation Inc. 414A is as follows:

a. The type certification basis for the Textron Aviation Inc. 414A as shown on Type Certification Data Sheet (TCDS) A7CE for parts not changed or not affected by the change.

b. The type certification basis for the Textron Aviation Inc. 414A for parts changed or affected by the change is TCDS A7CE with the following exceptions:

• 14 CFR Part 36 at Amendment 36-32.