Copy · Austro Engine MSB E4-042 · 16 pages

© Austro Engine. Filed by the FAA in regulations.gov docket FAA-2024-0456; AD 2024-05-01 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.

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Show pages 1–12

DOA no. EASA.21J.399 Mandatory Service Bulletin No. MSB-E4-042 Austro Engine GmbH Rudolf-Diesel-Strasse 11 A-2700 Wiener Neustadt Tel: +43 2622 23000

First Issue Date Rev. No. Revision Date Page 31 01 2024 0 -- -- ---- 13-16 © 2024 by Austro Engine GmbH – AUSTRIA – www.austroengine.at

2. Technical Details

Main bearing cap screw replacement

• Perform the replacement of the main bearing cap screws in accordance with the instruction provided in the work instruction no. WI-MSB-E4-042 rev. 0 or latest approved revision.

• Mark the service bulletin as executed on the Diamond partners portal

DOA no. EASA.21J.399 Mandatory Service Bulletin No. MSB-E4-042 Austro Engine GmbH Rudolf-Diesel-Strasse 11 A-2700 Wiener Neustadt Tel: +43 2622 23000

First Issue Date Rev. No. Revision Date Page 31 01 2024 0 -- -- ---- 14-16 © 2024 by Austro Engine GmbH – AUSTRIA – www.austroengine.at

2.1. Illustrations None

2.2. Mass (weight) Not affected

2.3. Approval statement The technical content of this document is approved under the authority of the DOA ref. EASA.

21J.399.

3. Planning Information

3.1. Material & Special tools The list of materials and special tools is provided in the WI-MSB-E4-042, latest applicable revision.

3.2. Labour effort 8 hours for main bearing cap screws replacement according to WI-MSB-E4-042

4. Warranty Costs for labour and parts related to the applicability of this MSB will be covered by Austro Engine GmbH warranty under the limitations outlined in paragraph 3.2 and within the currently valid GTC.

For engine units affected by this MSB and approaching end TBO/TBR deadline pro-rated solutions may be offered on a case-by-case basis.

Diamond and Austro Engine GmbH GTCs are available at https://www.diamondaircraft.com/en/GTC

DOA no. EASA.21J.399 Mandatory Service Bulletin No. MSB-E4-042 Austro Engine GmbH Rudolf-Diesel-Strasse 11 A-2700 Wiener Neustadt Tel: +43 2622 23000

First Issue Date Rev. No. Revision Date Page 31 01 2024 0 -- -- ---- 15-16 © 2024 by Austro Engine GmbH – AUSTRIA – www.austroengine.at

5. Remarks

NOTE:

o All measures must be carried out by a certified engine station and certified engine mechanics.

o The accomplishment of the instructions shown under chapter 2 must be confirmed in the respective engine logbook.

o The accomplishment of the instructions must be carried out within the time of compliance according to chapter 1.6 o In case of doubt, please contact Austro Engine GmbH via the Diamond Partner Portal o If you are not a Diamond Partner / Service Centre, please contact a Diamond/Austro Engine Authorized Service Centre near you.

6. Explanatory notes

6.1. Symbol explanation

WARNING: Disregarding these safety rules can cause personal injury or even death

CAUTION: Disregarding these special instructions and safety measures can cause damage to the engine or other components

NOTE: Additional note or instruction for better understanding of an instruction

DOA no. EASA.21J.399 Mandatory Service Bulletin No. MSB-E4-042 Austro Engine GmbH Rudolf-Diesel-Strasse 11 A-2700 Wiener Neustadt Tel: +43 2622 23000

First Issue Date Rev. No. Revision Date Page 31 01 2024 0 -- -- ---- 16-16 © 2024 by Austro Engine GmbH – AUSTRIA – www.austroengine.at

7. Appendix I

INTENTIONALLY LEFT IN BLANK