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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 -- -- ---- 1-16 © 2024 by Austro Engine GmbH – AUSTRIA – www.austroengine.at Distribution: Portal Date: 31.01.2024
1. Basic information
1.1. Subject Crankshaft-bearing cap screws replacement
1.2. Record of revisions Rev. Date Reason 0 31.01.2024 Initial approval
Revised portions of this Mandatory Service Bulletin are marked highlighting the revised text in yellow.
Removed text is highlighted in grey and strikethrough example.
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 -- -- ---- 2-16 © 2024 by Austro Engine GmbH – AUSTRIA – www.austroengine.at
1.3. Definitions and Acronyms For the purpose of this Service Bulletin, the following definitions and acronyms apply:
AD: Airworthiness Directive.
Diamond partners portal: partners.diamondaircraft.com EAD: Emergency Airworthiness Directive.
FH: Flight Hours.
Flight Hours: Means the cumulative number of airborne hours in operation of each Engine computed from the time an aircraft leaves the ground until it touches the ground at the end of a flight.
GTC: General Terms of Commerce.
MSB: Mandatory Service Bulletin.
n/a: Not applicable.
no.: Number.
p/n or p/ns: Part number or Part numbers.
SB: Service Bulletin.
s/n or s/ns: Serial number or Serial numbers.
TBO: Time Between Overhaul.
Time Between Overhaul: Is the maximum number of Flight Hours that may be logged on an engine before the Maintenance Manual requires the product be removed for overhaul or replacement. For E4 and E4P engines the recommended Time Between Overhaul is 1800 FH.
TSN: Time Since New.
Time Since New: Is the amount of Flight Hours elapsed since new.
Time Since Overhaul: Is the amount of Flight Hours elapsed since the last engine overhaul.
VFR: Visual flight rules
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 -- -- ---- 3-16 © 2024 by Austro Engine GmbH – AUSTRIA – www.austroengine.at
1.4. Reason Occurrences of E4 series engines have been reported recently. Investigation of the occurrences has shown in some cases the failure of one inner main bearing cap screw. Subsequent investigations have determined that certain batches of inner main bearing cap screws were produced at the lower end of the material strength tolerance for Class 8.8 screws. Depending on the magnitude of the screw’s strength properties, the potential for screw failure, leading to engine failure, exists in cases where abnormal operating conditions are experienced such as fuel quality issues or significant deviations from the fuel system requirements. To address this possible unsafe condition, this Service Bulletin requires the replacement of the inner main bearing cap screws, with screws having highest safety factor, to be completed within the timeframe specified in §1.6.
1.5. Engines affected Engine affected: E4 Series Serial numbers affected: All E4/E4P engines listed in Table 1 and Table 2 Table 1 - Affected Engine Serial Numbers E4-A E4-A-00228 E4-A-00425 E4-A-00441 E4-A-00485 E4-A-00549 E4-A-05077 E4-A-06276 E4-A-06277 E4-A-06279 E4-A-06280 E4-A-06281 E4-A-06282 E4-A-06283 E4-A-06285 E4-A-06286 E4-A-06287 E4-A-06289 E4-A-06290 E4-A-06292 E4-A-06306 E4-A-06310 E4-A-06311 E4-A-06312 E4-A-06313 E4-A-06314 E4-A-06315 E4-A-06316 E4-A-06317 E4-A-06318 E4-A-06319 E4-A-06320 E4-A-06321
E4-A-06322 E4-A-06323 E4-A-06324 E4-A-06325 E4-A-06326 E4-A-06327 E4-A-06328 E4-A-06329 E4-A-06332 E4-A-06333 E4-A-06340 E4-A-06341 E4-A-06343 E4-A-06349 E4-A-06353 E4-A-06354 E4-A-06359 E4-A-06360 E4-A-06361 E4-A-06362 E4-A-06366 E4-A-06367 E4-A-06368 E4-A-06370 E4-A-06371 E4-A-06372 E4-A-06373 E4-A-06374 E4-A-06375 E4-A-06376 E4-A-06378 E4-A-06379
E4-A-06383 E4-A-06384 E4-A-06385 E4-A-06386 E4-A-06387 E4-A-06388 E4-A-06389 E4-A-06390 E4-A-06391 E4-A-06392 E4-A-06393 E4-A-06394 E4-A-06397 E4-A-06398 E4-A-06400 E4-A-06401 E4-A-06402 E4-A-06403 E4-A-06404 E4-A-06405 E4-A-06406 E4-A-06407 E4-A-06408 E4-A-06409 E4-A-06410 E4-A-06413 E4-A-06414 E4-A-06424 E4-A-06425 E4-A-06435 E4-A-06441 E4-A-06442
E4-A-06448 E4-A-06452 E4-A-06458 E4-A-06459 E4-A-06460 E4-A-06461 E4-A-06462 E4-A-06463 E4-A-06464 E4-A-06468 E4-A-06469 E4-A-06470 E4-A-06471 E4-A-06472 E4-A-06473 E4-A-06474 E4-A-06475 E4-A-06476 E4-A-06477 E4-A-06478 E4-A-06479 E4-A-06480 E4-A-06481 E4-A-06482 E4-A-06483 E4-A-06484 E4-A-06485 E4-A-06486 E4-A-06487 E4-A-06488 E4-A-06489 E4-A-06490
E4-A-06491 E4-A-06492 E4-A-06493 E4-A-06494 E4-A-06499 E4-A-06500 E4-A-06502 E4-A-06504 E4-A-06506 E4-A-06507 E4-A-06508 E4-A-06509 E4-A-06510 E4-A-06511 E4-A-06512 E4-A-06513 E4-A-06515 E4-A-06516 E4-A-06517 E4-A-06519 E4-A-06521 E4-A-06522 E4-A-06523 E4-A-06525 E4-A-06526 E4-A-06527 E4-A-06528 E4-A-06531 E4-A-06533 E4-A-06534 E4-A-06535 E4-A-06536
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 -- -- ---- 4-16 © 2024 by Austro Engine GmbH – AUSTRIA – www.austroengine.at E4-A-06537 E4-A-06539 E4-A-06540 E4-A-06541 E4-A-06542 E4-A-06543 E4-A-06544 E4-A-06545 E4-A-06546 E4-A-06549 E4-A-06555 E4-A-06556 E4-A-06557 E4-A-06558 E4-A-06561 E4-A-06562 E4-A-06564 E4-A-06565 E4-A-06566 E4-A-06567 E4-A-06568 E4-A-06570 E4-A-06574 E4-A-06577 E4-A-06579 E4-A-06580 E4-A-06581 E4-A-06583 E4-A-06584 E4-A-06586 E4-A-06591 E4-A-06594 E4-A-06595 E4-A-06596 E4-A-06597 E4-A-06598 E4-A-06600 E4-A-06601 E4-A-06602
E4-A-06604 E4-A-06605 E4-A-06606 E4-A-06607 E4-A-06608 E4-A-06609 E4-A-06610 E4-A-06611 E4-A-06612 E4-A-06613 E4-A-06614 E4-A-06616 E4-A-06621 E4-A-06622 E4-A-06623 E4-A-06626 E4-A-06628 E4-A-06637 E4-A-06639 E4-A-06644 E4-A-06648 E4-A-06667 E4-A-06670 E4-A-06671 E4-A-06693 E4-A-06694 E4-A-06697 E4-A-06700 E4-A-06701 E4-A-06703 E4-A-06710 E4-A-06711 E4-A-06712 E4-A-06713 E4-A-06714 E4-A-06715 E4-A-06716 E4-A-06717 E4-A-06718 E4-A-06719 E4-A-06720 E4-A-06721 E4-A-06722 E4-A-06723 E4-A-06724 E4-A-06725 E4-A-06727 E4-A-06729 E4-A-06730 E4-A-06731 E4-A-06732 E4-A-06733 E4-A-06734 E4-A-06735 E4-A-06736 E4-A-06737 E4-A-06738 E4-A-06739 E4-A-06741 E4-A-06742 E4-A-06743 E4-A-06744 E4-A-06745 E4-A-06746 E4-A-06747 E4-A-06748 E4-A-06749 E4-A-06750 E4-A-06751 E4-A-06752 E4-A-06753 E4-A-06754 E4-A-06755 E4-A-06756 E4-A-06757 E4-A-06758 E4-A-06759 E4-A-06760 E4-A-06761 E4-A-06762 E4-A-06763 E4-A-06764 E4-A-06765 E4-A-06766 E4-A-06767 E4-A-06768 E4-A-06769 E4-A-06770 E4-A-06771 E4-A-06772 E4-A-06773 E4-A-06774 E4-A-06775 E4-A-06776 E4-A-06777 E4-A-06778 E4-A-06779 E4-A-06780 E4-A-06781 E4-A-06782 E4-A-06783 E4-A-06784 E4-A-06785 E4-A-06786 E4-A-06787 E4-A-06788 E4-A-06789 E4-A-06790 E4-A-06791 E4-A-06792 E4-A-06793 E4-A-06794 E4-A-06795 E4-A-06796 E4-A-06797 E4-A-06798 E4-A-06799 E4-A-06800 E4-A-06801 E4-A-06802 E4-A-06803 E4-A-06804 E4-B E4-B-06038 E4-B-06040 E4-B-06041 E4-B-06046 E4-B-06047 E4-B-06048 E4-B-06050 E4-B-06051 E4-B-06052 E4-B-06053 E4-B-06057 E4-B-06058 E4-B-06059 E4-B-06060 E4-B-06061 E4-B-06062 E4-B-06063 E4-B-06064 E4-B-06065 E4-B-06066 E4-B-06069 E4-B-06070 E4-B-06072 E4-B-06076 E4-B-06077 E4-B-06078 E4-B-06079 E4-B-06080 E4-B-06081 E4-B-06083 E4-B-06084 E4-B-06085 E4-B-06086 E4-B-06088 E4-B-06089 E4-B-06091 E4-B-06092 E4-B-06094 E4-B-06096 E4-B-06097 E4-B-06098 E4-B-06099 E4-B-06100 E4-B-06101 E4-B-06103 E4-B-06104 E4-B-06105 E4-B-06106 E4-B-06108 E4-B-06109
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 -- -- ---- 5-16 © 2024 by Austro Engine GmbH – AUSTRIA – www.austroengine.at E4-B-06111 E4-B-06112 E4-B-06121 E4-B-06123 E4-B-06125 E4-B-06127 E4-B-06128 E4-B-06129 E4-B-06130 E4-B-06131 E4-B-06132 E4-B-06133 E4-B-06134 E4-B-06135 E4-B-06136 E4-B-06137 E4-B-06138 E4-B-06139 E4-B-06140 E4-B-06141 E4-B-06142
E4C E4-C-00018 E4-C-00020 E4-C-00038 E4-C-00039 E4-C-00041 E4-C-00059 E4-C-00085 E4-C-00086 E4-C-00212 E4-C-00262 E4-C-00304 E4-C-00307 E4-C-00314 E4-C-00400 E4-C-00510 E4-C-05125 E4-C-05126 E4-C-06207 E4-C-06218 E4-C-06219 E4-C-06224 E4-C-06225 E4-C-06227 E4-C-06231 E4-C-06237 E4-C-06238 E4-C-06243 E4-C-06244 E4-C-06245 E4-C-06246 E4-C-06248 E4-C-06249 E4-C-06250 E4-C-06251 E4-C-06252 E4-C-06253 E4-C-06260 E4-C-06264 E4-C-06269 E4-C-06270 E4-C-06273 E4-C-06280 E4-C-06281 E4-C-06283 E4-C-06284 E4-C-06285 E4-C-06286 E4-C-06287 E4-C-06288 E4-C-06289 E4-C-06290 E4-C-06291 E4-C-06292 E4-C-06293 E4-C-06296 E4-C-06297 E4-C-06298 E4-C-06299 E4-C-06300 E4-C-06304 E4-C-06305 E4-C-06306 E4-C-06307 E4-C-06311 E4-C-06313 E4-C-06320 E4-C-06332 E4-C-06333 E4-C-06336 E4-C-06337 E4-C-06339 E4-C-06340 E4-C-06343 E4-C-06345 E4-C-06346 E4-C-06347 E4-C-06348 E4-C-06349 E4-C-06350 E4-C-06351 E4-C-06352 E4-C-06353 E4-C-06354 E4-C-06355 E4-C-06356 E4-C-06357 E4-C-06358 E4-C-06359 E4-C-06360 E4-C-06362 E4-C-06363 E4-C-06364 E4-C-06365 E4-C-06366 E4-C-06367 E4-C-06368 E4-C-06369 E4-C-06371 E4-C-06372 E4-C-06373 E4-C-06374 E4-C-06375 E4-C-06376 E4-C-06377 E4-C-06379 E4-C-06380 E4-C-06381 E4-C-06383 E4-C-06384 E4-C-06386 E4-C-06387 E4-C-06388 E4-C-06389 E4-C-06390 E4-C-06391 E4-C-06392 E4-C-06395 E4-C-06396 E4-C-06397 E4-C-06398 E4-C-06400 E4-C-06403 E4-C-06404 E4-C-06405 E4-C-06406 E4-C-06407 E4-C-06408 E4-C-06409 E4-C-06410 E4-C-06411 E4-C-06413 E4-C-06415 E4-C-06417 E4-C-06419 E4-C-06420 E4-C-06420 E4-C-06421 E4-C-06423 E4-C-06424 E4-C-06431 E4-C-06432 E4-C-06438 E4-C-06439 E4-C-06440 E4-C-06441 E4-C-06443 E4-C-06444 E4-C-06445 E4-C-06447 E4-C-06449 E4-C-06452 E4-C-06453 E4-C-06454 E4-C-06458 E4-C-06459 E4-C-06460 E4-C-06461 E4-C-06463 E4-C-06464 E4-C-06465 E4-C-06466 E4-C-06467 E4-C-06468 E4-C-06472 E4-C-06473 E4-C-06474 E4-C-06475 E4-C-06476 E4-C-06477 E4-C-06478 E4-C-06479 E4-C-06481 E4-C-06482 E4-C-06483 E4-C-06484 E4-C-06485 E4-C-06486 E4-C-06487 E4-C-06494 E4-C-06495 E4-C-06496 E4-C-06497 E4-C-06498 E4-C-06500 E4-C-06501 E4-C-06503 E4-C-06504 E4-C-06505 E4-C-06507 E4-C-06508 E4-C-06509 E4-C-06510 E4-C-06512 E4-C-06515 E4-C-06519 E4-C-06534 E4-C-06535 E4-C-06536 E4-C-06537 E4-C-06538 E4-C-06539 E4-C-06541 E4-C-06542 E4-C-06543 E4-C-06545 E4-C-06548 E4-C-06551 E4-C-06562 E4-C-06563 E4-C-06564
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 -- -- ---- 6-16 © 2024 by Austro Engine GmbH – AUSTRIA – www.austroengine.at E4-C-06565 E4-C-06566 E4-C-06567 E4-C-06568 E4-C-06569 E4-C-06573 E4-C-06575 E4-C-06576 E4-C-06577 E4-C-06578 E4-C-06579 E4-C-06580 E4-C-06583 E4-C-06584 E4-C-06585 E4-C-06586 E4-C-06587 E4-C-06588 E4-C-06589 E4-C-06590 E4-C-06591 E4-C-06592 E4-C-06593 E4-C-06594 E4-C-06595 E4-C-06596 E4-C-06597 E4-C-06598 E4-C-06599 E4-C-06600 E4-C-06601 E4-C-06602 E4-C-06603 E4-C-06604 E4-C-06605 E4-C-06606 E4-C-06607 E4-C-06608 E4-C-06611 E4-C-06612 E4-C-06613 E4-C-06614 E4-C-06615 E4-C-06616 E4-C-06617 E4-C-06618 E4-C-06619 E4-C-06620 E4-C-06621 E4-C-06622 E4-C-06623 E4-C-06624 E4-C-06625 E4-C-06626 E4-C-06627 E4-C-06628 E4-C-06629 E4-C-06630 E4-C-06631 E4-C-06632 E4-C-06633 E4-C-06634 E4-C-06635 E4-C-06636 E4-C-06637 E4-C-06638 E4-C-06639 E4-C-06640 E4-C-06641 E4-C-06642 E4-C-06643 E4-C-06644 E4-C-06645 E4-C-06646 E4-C-06647
E4P E4P-C-06065 E4P-C-06143 E4P-C-06145 E4P-C-06146 E4P-C-06148 E4P-C-06150 E4P-C-06151 E4P-C-06156 E4P-C-06167 E4P-C-06168 E4P-C-06169 E4P-C-06170 E4P-C-06177 E4P-C-06183 E4P-C-06186 E4P-C-06187 E4P-C-06188 E4P-C-06189 E4P-C-06190 E4P-C-06191 E4P-C-06192 E4P-C-06193 E4P-C-06194 E4P-C-06195 E4P-C-06196 E4P-C-06197 E4P-C-06198 E4P-C-06199 E4P-C-06200 E4P-C-06201 E4P-C-06202 E4P-C-06203 E4P-C-06204 E4P-C-06205 E4P-C-06206 E4P-C-06207 E4P-C-06208 E4P-C-06215 E4P-C-06221 E4P-C-06222 E4P-C-06223 E4P-C-06226 E4P-C-06228 E4P-C-06230 E4P-C-06234 E4P-C-06236 E4P-C-06237 E4P-C-06238 E4P-C-06239 E4P-C-06241 E4P-C-06243 E4P-C-06244 E4P-C-06245 E4P-C-06246 E4P-C-06247 E4P-C-06248 E4P-C-06249 E4P-C-06250 E4P-C-06251 E4P-C-06252 E4P-C-06253 E4P-C-06254 E4P-C-06256 E4P-C-06257 E4P-C-06260 E4P-C-06261 E4P-C-06262 E4P-C-06263 E4P-C-06264 E4P-C-06265 E4P-C-06266 E4P-C-06268 E4P-C-06270 E4P-C-06272 E4P-C-06277 E4P-C-06278 E4P-C-06279 E4P-C-06281 E4P-C-06282 E4P-C-06283 E4P-C-06284 E4P-C-06286 E4P-C-06287 E4P-C-06292 E4P-C-06293 E4P-C-06298 E4P-C-06299 E4P-C-06301 E4P-C-06302 E4P-C-06303
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 -- -- ---- 7-16 © 2024 by Austro Engine GmbH – AUSTRIA – www.austroengine.at E4P-C-06304 E4P-C-06305 E4P-C-06306 E4P-C-06307 E4P-C-06308 E4P-C-06310 E4P-C-06311 E4P-C-06312 E4P-C-06315 E4P-C-06319 E4P-C-06323 E4P-C-06326 E4P-C-06328 E4P-C-06330 E4P-C-06331 E4P-C-06342 E4P-C-06344 E4P-C-06353 E4P-C-06354 E4P-C-06359 E4P-C-06360 E4P-C-06361 E4P-C-06362 E4P-C-06363 E4P-C-06364 E4P-C-06365 E4P-C-06366 E4P-C-06367 E4P-C-06368 E4P-C-06369 E4P-C-06370 E4P-C-06371 E4P-C-06373 E4P-C-06376 E4P-C-06377 E4P-C-06378 E4P-C-06379 E4P-C-06380 E4P-C-06381 E4P-C-06382 E4P-C-06383 E4P-C-06384 E4P-C-06385 E4P-C-06386 E4P-C-06387 E4P-C-06388 E4P-C-06389 E4P-C-06390 E4P-C-06391 E4P-C-06392 E4P-C-06393 E4P-C-06394 E4P-C-06395 E4P-C-06396 E4P-C-06397 E4P-C-06398 E4P-C-06399 E4P-C-06400 E4P-C-06401 E4P-C-06402 E4P-C-06403 E4P-C-06404
Engine Core s/n 00206 01941 02175 02176 02177 02178 02179 02180 02181 02182 02195 02197 02198 02199 02200 02205 02206 02207 02208 02209 02210 02211 02212 02213 02214 02225 02226 02227 02228 02229 02230 02231 02232 02233 02234 02235 02236 02237 02238 02239 02240 02241 02242 02243 02244 02245 02246 02247 02248 02249 02250 02251 02252 02253 02259 02260 02261 02262 02263 02264 02265 02266 02267 02268 02279 02280 02281 02288 02308 02319 02321 02323 02325 02328 02340 02358 02367 02379 02381 02382 02383 02408 02628 02656 02893 02914 02917 02933 03179 03183 03188 03192 03271 03294 03313 03343 03367 03411 03413
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 -- -- ---- 8-16 © 2024 by Austro Engine GmbH – AUSTRIA – www.austroengine.at Table 2 - Affected Engine Serial Numbers E4-A E4-A-06134 E4-A-06138 E4-A-06149 E4-A-06180 E4-A-06216 E4-A-06218 E4-A-06219 E4-A-06222 E4-A-06223 E4-A-06225 E4-A-06226 E4-A-06227 E4-A-06233 E4-A-06239 E4-A-06242 E4-A-06246 E4-A-06300 E4-A-06302 E4-A-06303 E4-A-06304 E4-A-06307 E4-A-06308 E4-A-06334 E4-A-06338 E4-A-06347 E4-A-06350 E4-A-06351 E4-A-06352 E4-A-06357 E4-A-06369 E4-A-06395 E4-A-06399 E4-A-06411 E4-A-06412 E4-A-06415 E4-A-06416 E4-A-06417 E4-A-06418 E4-A-06419 E4-A-06420 E4-A-06421 E4-A-06422 E4-A-06423 E4-A-06426 E4-A-06427 E4-A-06428 E4-A-06429 E4-A-06430 E4-A-06431 E4-A-06432 E4-A-06433 E4-A-06434 E4-A-06438 E4-A-06439 E4-A-06440 E4-A-06444 E4-A-06446 E4-A-06447 E4-A-06450 E4-A-06451 E4-A-06453 E4-A-06454 E4-A-06455 E4-A-06456 E4-A-06457 E4-A-06465 E4-A-06466 E4-A-06467 E4-A-06495 E4-A-06496 E4-A-06497 E4-A-06498 E4-A-06501 E4-A-06503 E4-A-06505 E4-A-06514 E4-A-06518 E4-A-06520 E4-A-06524 E4-A-06529 E4-A-06530 E4-A-06532 E4-A-06538 E4-A-06547 E4-A-06548 E4-A-06550 E4-A-06551 E4-A-06552 E4-A-06553 E4-A-06554 E4-A-06559 E4-A-06560 E4-A-06563 E4-A-06569 E4-A-06571 E4-A-06572 E4-A-06573 E4-A-06575 E4-A-06576 E4-A-06578 E4-A-06582 E4-A-06585 E4-A-06587 E4-A-06588 E4-A-06589 E4-A-06590 E4-A-06592 E4-A-06593 E4-A-06599 E4-A-06615 E4-A-06617 E4-A-06618 E4-A-06619 E4-A-06620 E4-A-06624 E4-A-06625 E4-A-06627 E4-A-06629 E4-A-06630 E4-A-06631 E4-A-06632 E4-A-06633 E4-A-06634 E4-A-06635 E4-A-06636 E4-A-06638 E4-A-06640 E4-A-06641 E4-A-06642 E4-A-06643 E4-A-06645 E4-A-06646 E4-A-06647 E4-A-06649 E4-A-06650 E4-A-06651 E4-A-06652 E4-A-06653 E4-A-06654 E4-A-06655 E4-A-06656 E4-A-06657 E4-A-06658 E4-A-06659 E4-A-06660 E4-A-06661 E4-A-06662 E4-A-06663 E4-A-06664 E4-A-06665 E4-A-06666 E4-A-06668 E4-A-06669 E4-A-06672 E4-A-06673 E4-A-06674 E4-A-06675 E4-A-06676 E4-A-06677 E4-A-06678 E4-A-06679 E4-A-06680 E4-A-06681 E4-A-06682 E4-A-06683 E4-A-06684 E4-A-06685 E4-A-06686 E4-A-06687 E4-A-06688 E4-A-06689 E4-A-06690 E4-A-06691 E4-A-06692 E4-A-06695 E4-A-06696 E4-A-06698 E4-A-06699 E4-A-06702 E4-A-06704 E4-A-06705 E4-A-06706 E4-A-06707 E4-A-06708 E4-A-06709
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 -- -- ---- 9-16 © 2024 by Austro Engine GmbH – AUSTRIA – www.austroengine.at E4-B E4-B-06027 E4-B-06028 E4-B-06029 E4-B-06044 E4-B-06045 E4-B-06067 E4-B-06068 E4-B-06071 E4-B-06073 E4-B-06074 E4-B-06075 E4-B-06082 E4-B-06087 E4-B-06090 E4-B-06093 E4-B-06095 E4-B-06102 E4-B-06107 E4-B-06110 E4-B-06113 E4-B-06114 E4-B-06115 E4-B-06116 E4-B-06117 E4-B-06118 E4-B-06119 E4-B-06120 E4-B-06122 E4-B-06124 E4-B-06126
E4-C E4-C-00267 E4-C-00354 E4-C-00406 E4-C-00681 E4-C-06191 E4-C-06196 E4-C-06201 E4-C-06205 E4-C-06239 E4-C-06241 E4-C-06254 E4-C-06256 E4-C-06257 E4-C-06265 E4-C-06266 E4-C-06275 E4-C-06276 E4-C-06282 E4-C-06294 E4-C-06295 E4-C-06301 E4-C-06302 E4-C-06303 E4-C-06308 E4-C-06309 E4-C-06310 E4-C-06312 E4-C-06314 E4-C-06315 E4-C-06316 E4-C-06317 E4-C-06318 E4-C-06319 E4-C-06321 E4-C-06322 E4-C-06323 E4-C-06324 E4-C-06325 E4-C-06326 E4-C-06327 E4-C-06328 E4-C-06329 E4-C-06330 E4-C-06331 E4-C-06334 E4-C-06335 E4-C-06338 E4-C-06342 E4-C-06344 E4-C-06361 E4-C-06378 E4-C-06382 E4-C-06385 E4-C-06393 E4-C-06394 E4-C-06399 E4-C-06401 E4-C-06402 E4-C-06412 E4-C-06414 E4-C-06416 E4-C-06418 E4-C-06422 E4-C-06425 E4-C-06426 E4-C-06427 E4-C-06428 E4-C-06429 E4-C-06430 E4-C-06433 E4-C-06434 E4-C-06435 E4-C-06436 E4-C-06437 E4-C-06442 E4-C-06446 E4-C-06448 E4-C-06450 E4-C-06451 E4-C-06455 E4-C-06456 E4-C-06457 E4-C-06462 E4-C-06469 E4-C-06470 E4-C-06471 E4-C-06480 E4-C-06488 E4-C-06489 E4-C-06490 E4-C-06491 E4-C-06492 E4-C-06493 E4-C-06499 E4-C-06502 E4-C-06506 E4-C-06511 E4-C-06513 E4-C-06514 E4-C-06516 E4-C-06517 E4-C-06518 E4-C-06520 E4-C-06521 E4-C-06522 E4-C-06523 E4-C-06524 E4-C-06525 E4-C-06526 E4-C-06527 E4-C-06528 E4-C-06529 E4-C-06530 E4-C-06531 E4-C-06532 E4-C-06533 E4-C-06540 E4-C-06544 E4-C-06546 E4-C-06547 E4-C-06549 E4-C-06550 E4-C-06552 E4-C-06553 E4-C-06554 E4-C-06555 E4-C-06556 E4-C-06557 E4-C-06558 E4-C-06559 E4-C-06560 E4-C-06561
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 -- -- ---- 10-16 © 2024 by Austro Engine GmbH – AUSTRIA – www.austroengine.at E4P E4P-C-06118 E4P-C-06119 E4P-C-06124 E4P-C-06127 E4P-C-06129 E4P-C-06132 E4P-C-06155 E4P-C-06159 E4P-C-06160 E4P-C-06161 E4P-C-06165 E4P-C-06166 E4P-C-06173 E4P-C-06178 E4P-C-06184 E4P-C-06209 E4P-C-06210 E4P-C-06211 E4P-C-06212 E4P-C-06213 E4P-C-06216 E4P-C-06217 E4P-C-06218 E4P-C-06219 E4P-C-06220 E4P-C-06224 E4P-C-06227 E4P-C-06229 E4P-C-06255 E4P-C-06258 E4P-C-06267 E4P-C-06271 E4P-C-06273 E4P-C-06274 E4P-C-06275 E4P-C-06276 E4P-C-06280 E4P-C-06285 E4P-C-06288 E4P-C-06289 E4P-C-06290 E4P-C-06291 E4P-C-06294 E4P-C-06295 E4P-C-06296 E4P-C-06297 E4P-C-06300 E4P-C-06309 E4P-C-06313 E4P-C-06314 E4P-C-06316 E4P-C-06317 E4P-C-06318 E4P-C-06320 E4P-C-06321 E4P-C-06322 E4P-C-06324 E4P-C-06325 E4P-C-06327 E4P-C-06329 E4P-C-06332 E4P-C-06333 E4P-C-06334 E4P-C-06335 E4P-C-06336 E4P-C-06337 E4P-C-06338 E4P-C-06339 E4P-C-06340 E4P-C-06341 E4P-C-06343 E4P-C-06345 E4P-C-06346 E4P-C-06347 E4P-C-06348 E4P-C-06349 E4P-C-06350 E4P-C-06351 E4P-C-06352 E4P-C-06355 E4P-C-06356 E4P-C-06357 E4P-C-06358 E4P-C-06372 Engine core s/n 02327 02421 02282 02286 02287 02402 02304 02284 02283 02299 02339 02300 02307 02320 02301 02306 02363 02305 02285 02303 02359 02302 02345 02344 02324 02326 02342 02322 02387 02343 02341 02361 02347 02385 02360 02362 02364 02346 02366 02400 02405 02380 02365 02542 02407 02406 02399 02420 02535 02540 02404 02386 02384 02368 02388 02403 02401 02419 02533 02532 02552 02536 02541 02548 02539 02543 02422 02538 02423 02534 02551 02549 02537 02424 02428 02545 02553 02554 02427 02544 02546 02426 02547 02550 02425 02993 02992
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 -- -- ---- 11-16 © 2024 by Austro Engine GmbH – AUSTRIA – www.austroengine.at
1.6. Required Actions and Time of Compliance GROUP “1” ENGINES ALL the s/n listed in Table 1 Replace the inner main bearing cap screws, position (3) (4) (5) (6) (7) (8) of figure 1 Measures must be accomplished immediately.
A single ferry flight to the next maintenance station to meet the requirements of this service bulletin is allowed. The maximum flight duration is 3 hours and is limited to VFR-Day condition.
GROUP “2” ENGINES ALL the s/n listed in Table 2 Replace the inner main bearing cap screws, position (3) (4) (5) (6) (7) (8) of figure 1 Before accumulating 300 Flight Hours or with the next scheduled maintenance action, whichever occurs first (1)
(1) Time of compliance for Engines where an Overhaul was accomplished:
The FH specified in §1.6 of this MSB are those accumulated by the engine since first installation on an aeroplane, or since last overhaul:
e.g., For an engine which was overhauled at 1800FH, the required replacement actions must be accomplished before accumulating 2100FH (300FH since overhaul)
Figure 1 – Main bearing cap screws to be replaced.
3 5 7 4 6 8
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 -- -- ---- 12-16 © 2024 by Austro Engine GmbH – AUSTRIA – www.austroengine.at
1.7. Concurrent documents / references Note: If not specified, the latest revision of the referenced documents applies.
• Work instruction WI-MSB-E4-042
1.8. Other publications affected None
1.9. Credits None