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Mandatory Service Bulletin No. MSB-E4-025/3 Austro Engine GmbH Rudolf-Diesel-Strasse 11 2700 Wiener Neustadt PHONE: +43 2622 23000 FAX: +43 2622 23000-2711
First Issue Date Rev. No. Revision Date Page 01 Oct 2018 03 08 Jan 2019 1-5 © 2017 by Austro Engine GmbH – AUSTRIA – www.austroengine.at
1. BASIC INFORMATION
1.1. SUBJECT Fuel injectors.
1.2. ENGINES AFFECTED Engine type: E4
Engine model(s): E4-A, E4-B, E4-C
Serial number(s): all
1.3. REASON Cases of premature injector failures have been found by Austro Engine. Failure of the fuel injectors can lead, if not detected, to loss of compression and subsequently to engine failure.
As precautionary action Austro Engine prescribes a time limit for the fuel injectors.
1.4. TIME OF COMPLIANCE Initial action:
Upon reaching 900 flight hours in service time of the fuel injectors For fuel injectors with more than 800 flight hours but not more than 1000 flight hours as of 01-Oct-2018: No later than 1150 flight hours in service time or 01-Oct- 2019, whichever comes first.
For fuel injectors with more than 1000 flight hours but not more than 1400 flight hours as of 01-Oct-2018: Within 150 flight hours as of 01-Jan-2019 but no later than 1500 flight hours in service time or 01-Oct-2019, whichever comes first.
For fuel injectors with more than 1400 flight hours as of 01-Oct-2018: Within the next 100 flight hours, but not later than 01-Oct-2019, whichever comes first.
Terminating Action:
Not later than 01-Oct-2019.
Prior compliance with MSB-E4-025 is considered equivalent to the initial action.
Mandatory Service Bulletin No. MSB-E4-025/3 Austro Engine GmbH Rudolf-Diesel-Strasse 11 2700 Wiener Neustadt PHONE: +43 2622 23000 FAX: +43 2622 23000-2711
First Issue Date Rev. No. Revision Date Page 01 Oct 2018 03 08 Jan 2019 2-5 © 2017 by Austro Engine GmbH – AUSTRIA – www.austroengine.at
1.5. CONCURRENT DOCUMENTS / REFERENCES
- Maintenance Manual E4 Series – Doc. No.: E4.08.04, latest effective issue
1.6. OTHER PUBLICATIONS AFFECTED None.
2. TECHNICAL DETAILS
2.1. ACCOMPLISHMENT / INSTRUCTIONS Initial Action:
1. Replace the fuel injectors according to Maintenance Manual section 73-00-10.
WARNING: Make sure not to over-torque the injector bolts. Over-torqueing an injector bolt can lead to damage of the engine and subsequent power loss.
2. Fill in the attached tags and return the removed injectors to Austro Engine.
3. Make all necessary entries in the engine log.
Terminating Action:
If the time in service of the fuel injectors is less than 900 hours or after the fuel injectors have been replaced, repeated compliance with this Service Bulletin may be terminated after completion of the following steps:
1. Make sure MM-TR-MDC-E4-454 is inserted into the Maintenance Manual or a Maintenance Manual revision with MM-TR-MDC-E4-454 incorporated is used.
2. Record the terminating action of this Service Bulletin as completed in the engine log.
2.2. MASS (WEIGHT) None.
2.3. APPROVAL STATEMENT The technical content of this document has been approved under the authority of DOA ref.
EASA.21J.399.
Mandatory Service Bulletin No. MSB-E4-025/3 Austro Engine GmbH Rudolf-Diesel-Strasse 11 2700 Wiener Neustadt PHONE: +43 2622 23000 FAX: +43 2622 23000-2711
First Issue Date Rev. No. Revision Date Page 01 Oct 2018 03 08 Jan 2019 3-5 © 2017 by Austro Engine GmbH – AUSTRIA – www.austroengine.at
3. PLANNING INFORMATION
3.1. MATERIAL & AVAILABILITY
Qty Part Number Description 4 E4A-35-000-000 Injector 4 E4A-03-000-801 Gasket rings 4 E4A-03-000-802 Screws
3.2. SPECIAL TOOLS As stated in the Maintenance Manual E4.08.04.
3.3. LABOR EFFORT
2.5 hours.
Mandatory Service Bulletin No. MSB-E4-025/3 Austro Engine GmbH Rudolf-Diesel-Strasse 11 2700 Wiener Neustadt PHONE: +43 2622 23000 FAX: +43 2622 23000-2711
First Issue Date Rev. No. Revision Date Page 01 Oct 2018 03 08 Jan 2019 4-5 © 2017 by Austro Engine GmbH – AUSTRIA – www.austroengine.at
4. 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 2.1 must be confirmed in the respective engine log book.
o The accomplishment of the instructions must be carried out within the time of compliance according chapter 1.
o In case of doubt please contact the Austro Engine GmbH – After Sales Support (e-mail: service@austroengine.at; Tel: +43 2622 23000 2525).
o For credit information contact Austro Engine GmbH – After Sales Support (e-mail: service@austroengine.at; Tel: +43 2622 23000 2525)
o Corresponding „Core“ value will and can only be credited when the returned injectors are tagged correctly and received in good condition (no physical damages).
5. EXPLANATORY NOTES
5.1. 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
Mandatory Service Bulletin No. MSB-E4-025/3 Austro Engine GmbH Rudolf-Diesel-Strasse 11 2700 Wiener Neustadt PHONE: +43 2622 23000 FAX: +43 2622 23000-2711
First Issue Date Rev. No. Revision Date Page 01 Oct 2018 03 08 Jan 2019 5-5 © 2017 by Austro Engine GmbH – AUSTRIA – www.austroengine.at
Injector 4 Part Number ________________ Serial Number ________________ IQA-Code ________________ TSN ________________ Engine S/N ________________ Aircraft S/N ________________ Signature ________________
Injector 3 Part Number ________________ Serial Number ________________ IQA-Code ________________ TSN ________________ Engine S/N ________________ Aircraft S/N ________________ Signature ________________
Injector 2 Part Number ________________ Serial Number ________________ IQA-Code ________________ TSN ________________ Engine S/N ________________ Aircraft S/N ________________ Signature ________________
Injector 1 Part Number ________________ Serial Number ________________ IQA-Code ________________ TSN ________________ Engine S/N ________________ Aircraft S/N ________________ Signature ________________