# STC SA12274IB

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: MT-Propeller Entwicklung GmbH, Germany
- Description: Installation of the MT-Propeller Entwicklung GmbH MTV-9-D/198-52() and MTV-9-D/198-58() propellers
- Applied: October 1, 2025
- Status date: February 17, 2026
- Product: Aircraft, Small Airplane
- Certification basis: Part 23
- Foreign approvals: EASA 10088139 Rev 0 09/24/2025
- Data sheets: [TCDS A00009CH](https://openairdocs.org/tcds/A00009CH)
- Certificate PDF: https://openairdocs.org/files/sha256/77/64/7764786aa492d5d13d1cf50d01e28c96f65c594774b88cf8bb8106d7b06b1207
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID114431234520260218151128.0001
- DRS record last changed: February 18, 2026
- Page: https://openairdocs.org/stc/SA12274IB

## ADs that name it (0)

None.

## Approved models (1)

- Cirrus Design Corporation SR22T ([TCDS A00009CH](https://openairdocs.org/tcds/A00009CH))

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

IMPORT SA12274IB MT-Propeller Entwicklung GmbH Flugplatzstrasse 1 94348 Atting Germany Part 23 Title 14 Code of Federal Regulations A00009CH Cirrus Design Corporation

SR22T

1. Installation of the MT-Propeller Entwicklung GmbH MTV-9-D/198-52() and MTV-9-D/198-58() propellers on the Cirrus Design Corporation SR22T aircraft must be done in accordance with the MT-Propeller Entwicklung GmbH Master Documentation List (MDL), Doc. # E-4474 Revision 3, dated November 27, 2025, or later European Union Aviation Safety Agency (EASA) accepted revsions, and the Installation Instructions, Doc # E-4477, 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 February 17, 2026 John Yoo Manager, International Validation Branch Compliance & Airworthiness Division Aircraft Certification Service 3

**IMPORT SA12274IB 3**

IMPORT SA12274IB Date Issued: February 17, 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-4478, Revision 0, dated August 28, 2025, or later EASA accepted revisions.

3. Operations must be in accordance with the MT-Propeller Entwicklung GmbH Airplane Flight Manual Supplement, # E-4476, Revision 0, dated August 28, 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 SR22T is as follows:

a. The type certification basis for the Cirrus Design Corporation SR22T 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 SR22T 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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## Every issue (1)

- February 17, 2026: Issued, Current. [certificate](https://openairdocs.org/files/sha256/77/64/7764786aa492d5d13d1cf50d01e28c96f65c594774b88cf8bb8106d7b06b1207)

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