Austro Engine MSB MSB-E4-039/1: Revision 1, text

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DOA no. EASA.21J.399 Mandatory Service Bulletin No. MSB-E4-039/1 Austro Engine GmbH Rudolf-Diesel-Strasse 11 A-2700 Wiener Neustadt Tel: +43 2622 23000 FAX: +43 2622 23000-2711

1. Basic information

1.1. Subject Oil Analysis and Pistons replacement

1.2. Record of revisions Rev. Date Reason 0 24.10.2022 Initial approval 1 24.04.2023 Clarifying notes added Labour effort further detailed Execution report removed – the MSB execution shall be confirmed only with the DAI partners portal

Revised portions of this Mandatory Service Bulletin are marked highlighting the revised text in yellow

Page 2Open in PDF

DOA no. EASA.21J.399 Mandatory Service Bulletin No. MSB-E4-039/1 Austro Engine GmbH Rudolf-Diesel-Strasse 11 A-2700 Wiener Neustadt Tel: +43 2622 23000 FAX: +43 2622 23000-2711

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 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 PPM: Parts per million 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 eng ines 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 Group 1 engines: Are model E4 engines in configuration “ -A”, installed on single engine aeroplanes, which are included in Table 1 Group 2 engines: Are model E4 engines in configuration “ -B” or “ -C” and Model E4P installed on twin engine aeroplanes, which are included in Table 2 Group 3 engines: Are model E4 engines in config uration “ -A”, installed on single engine aeroplanes, which are included in Table 3 Group 4 engines: Are model E4 engines in configuration “-B” or “-C” and Model E4P installed on twin engine aeroplanes, which are included in Table 4

Page 3Open in PDF

DOA no. EASA.21J.399 Mandatory Service Bulletin No. MSB-E4-039/1 Austro Engine GmbH Rudolf-Diesel-Strasse 11 A-2700 Wiener Neustadt Tel: +43 2622 23000 FAX: +43 2622 23000-2711

1.4. Reason Occurrences were reported of piston failures. Subsequent investigation determined that certain batches of pistons were produced with a dimensional deviation in the piston pin bore an d a dimensional deviation in the piston diameter. Depending on the magnitude of the dimensional discrepancy fatigue failure of the pistons is possible, leading to a potential oil loss and engine power loss. To correct this possible unsafe condition, this S ervice Bulletin requires the following to be accomplished as per the time provide in §1.6:

- For group 1 and 2 engines, to take an oil sample and do an oil analysis up until TBO

- For group 3 and 4 engines, to take an oil sample and do an oil analysis and at the specified time replace the pistons (inclusive of piston rings and con -rods assy), or replace the engine core

1.5. Engines affected Engine affected: E4 Series Serial numbers affected: All E4/E4P engines listed in Table 1, Table 2, Table 3 and Table 4 Table 1 - Affected Engine Serial Numbers, Group 1 Group “1” Engines E4-A-06163 E4-A-06245 E4-A-06265 E4-A-06284 E4-A-06303 E4-A-06322 E4-A-06341 E4-A-06360 E4-A-06222 E4-A-06246 E4-A-06266 E4-A-06285 E4-A-06304 E4-A-06323 E4-A-06342 E4-A-06361 E4-A-06224 E4-A-06247 E4-A-06267 E4-A-06286 E4-A-06305 E4-A-06324 E4-A-06343 E4-A-06362 E4-A-06228 E4-A-06249 E4-A-06268 E4-A-06287 E4-A-06306 E4-A-06325 E4-A-06344 E4-A-06363 E4-A-06229 E4-A-06250 E4-A-06269 E4-A-06288 E4-A-06307 E4-A-06326 E4-A-06345 E4-A-06364 E4-A-06230 E4-A-06251 E4-A-06270 E4-A-06289 E4-A-06308 E4-A-06327 E4-A-06346 E4-A-06365 E4-A-06232 E4-A-06252 E4-A-06271 E4-A-06290 E4-A-06309 E4-A-06328 E4-A-06347 E4-A-06366 E4-A-06233 E4-A-06253 E4-A-06272 E4-A-06291 E4-A-06310 E4-A-06329 E4-A-06348 E4-A-06369 E4-A-06234 E4-A-06254 E4-A-06273 E4-A-06292 E4-A-06311 E4-A-06330 E4-A-06349 E4-A-06370 E4-A-06235 E4-A-06255 E4-A-06274 E4-A-06293 E4-A-06312 E4-A-06331 E4-A-06350 E4-A-06371 E4-A-06236 E4-A-06256 E4-A-06275 E4-A-06294 E4-A-06313 E4-A-06332 E4-A-06351 E4-A-06372 E4-A-06237 E4-A-06257 E4-A-06276 E4-A-06295 E4-A-06314 E4-A-06333 E4-A-06352 E4-A-06374 E4-A-06238 E4-A-06258 E4-A-06277 E4-A-06296 E4-A-06315 E4-A-06334 E4-A-06353 E4-A-06375 E4-A-06239 E4-A-06259 E4-A-06278 E4-A-06297 E4-A-06316 E4-A-06335 E4-A-06354 E4-A-06376 E4-A-06240 E4-A-06260 E4-A-06279 E4-A-06298 E4-A-06317 E4-A-06336 E4-A-06355 E4-A-06377 E4-A-06241 E4-A-06261 E4-A-06280 E4-A-06299 E4-A-06318 E4-A-06337 E4-A-06356 E4-A-06380 E4-A-06242 E4-A-06262 E4-A-06281 E4-A-06300 E4-A-06319 E4-A-06338 E4-A-06357 E4-A-06381 E4-A-06243 E4-A-06263 E4-A-06282 E4-A-06301 E4-A-06320 E4-A-06339 E4-A-06358 E4-A-06382 E4-A-06244 E4-A-06264 E4-A-06283 E4-A-06302 E4-A-06321 E4-A-06340 E4-A-06359 Table 2 - Affected Engine Serial Numbers, Group 2 Group “2” Engines E4-B-06030 E4-B-06034 E4-B-06038 E4-B-06042 E4-B-06046 E4-B-06051 E4-B-06055 E4-B-06031 E4-B-06035 E4-B-06039 E4-B-06043 E4-B-06047 E4-B-06052 E4-B-06056 E4-B-06032 E4-B-06036 E4-B-06040 E4-B-06044 E4-B-06048 E4-B-06053 E4-B-06057 E4-B-06033 E4-B-06037 E4-B-06041 E4-B-06045 E4-B-06050 E4-B-06054 E4-B-06058

E4-C-00038 E4-C-06189 E4-C-06207 E4-C-06221 E4-C-06235 E4-C-06250 E4-C-06264 E4-C-06278 E4-C-00039 E4-C-06194 E4-C-06208 E4-C-06222 E4-C-06236 E4-C-06251 E4-C-06265 E4-C-06279 E4-C-00059 E4-C-06195 E4-C-06209 E4-C-06223 E4-C-06237 E4-C-06252 E4-C-06266 E4-C-06280 E4-C-00066 E4-C-06196 E4-C-06210 E4-C-06224 E4-C-06238 E4-C-06253 E4-C-06267 E4-C-06281 E4-C-00212 E4-C-06197 E4-C-06211 E4-C-06225 E4-C-06239 E4-C-06254 E4-C-06268 E4-C-06282 E4-C-00262 E4-C-06198 E4-C-06212 E4-C-06226 E4-C-06240 E4-C-06255 E4-C-06269 E4-C-06283 E4-C-00267 E4-C-06199 E4-C-06213 E4-C-06227 E4-C-06241 E4-C-06256 E4-C-06270 E4-C-06284

Page 4Open in PDF

DOA no. EASA.21J.399 Mandatory Service Bulletin No. MSB-E4-039/1 Austro Engine GmbH Rudolf-Diesel-Strasse 11 A-2700 Wiener Neustadt Tel: +43 2622 23000 FAX: +43 2622 23000-2711

First Issue Date Rev. No. Revision Date Page 24 10 2022 1 24 04 2023 4-15 © 2023 by Austro Engine GmbH – AUSTRIA – www.austroengine.at Group “2” Engines E4-C-00275 E4-C-06200 E4-C-06214 E4-C-06228 E4-C-06242 E4-C-06257 E4-C-06271 E4-C-156W00021 E4-C-00307 E4-C-06201 E4-C-06215 E4-C-06229 E4-C-06243 E4-C-06258 E4-C-06272 E4-C-156W00022 E4-C-00311 E4-C-06202 E4-C-06216 E4-C-06230 E4-C-06244 E4-C-06259 E4-C-06273

E4-C-00314 E4-C-06203 E4-C-06217 E4-C-06231 E4-C-06245 E4-C-06260 E4-C-06274 E4-C-00406 E4-C-06204 E4-C-06218 E4-C-06232 E4-C-06246 E4-C-06261 E4-C-06275 E4-C-00578 E4-C-06205 E4-C-06219 E4-C-06233 E4-C-06247 E4-C-06262 E4-C-06276 E4-C-06186 E4-C-06206 E4-C-06220 E4-C-06234 E4-C-06248 E4-C-06263 E4-C-06277

E4P-C-06122 E4P-C-06132 E4P-C-06141 E4P-C-06149 E4P-C-06157 E4P-C-06165 E4P-C-06173 E4P-C-06181 E4P-C-06123 E4P-C-06133 E4P-C-06142 E4P-C-06150 E4P-C-06158 E4P-C-06166 E4P-C-06174 E4P-C-06182 E4P-C-06126 E4P-C-06134 E4P-C-06143 E4P-C-06151 E4P-C-06159 E4P-C-06167 E4P-C-06175 E4P-C-06183 E4P-C-06127 E4P-C-06135 E4P-C-06144 E4P-C-06152 E4P-C-06160 E4P-C-06168 E4P-C-06176 E4P-C-06184 E4P-C-06128 E4P-C-06136 E4P-C-06145 E4P-C-06153 E4P-C-06161 E4P-C-06169 E4P-C-06177 E4P-C-06186 E4P-C-06129 E4P-C-06137 E4P-C-06146 E4P-C-06154 E4P-C-06162 E4P-C-06170 E4P-C-06178 E4P-C-06187 E4P-C-06130 E4P-C-06138 E4P-C-06147 E4P-C-06155 E4P-C-06163 E4P-C-06171 E4P-C-06179 E4P-C-06131 E4P-C-06139 E4P-C-06148 E4P-C-06156 E4P-C-06164 E4P-C-06172 E4P-C-06180 Table 3 - Affected Engine Serial Numbers, Group 3 Group “3” Engines E4-A-00011 E4-A-00240 E4-A-00504 E4-A-05057 E4-A-06025 E4-A-06076 E4-A-06127 E4-A-06179 E4-A-00018 E4-A-00244 E4-A-00507 E4-A-05058 E4-A-06026 E4-A-06077 E4-A-06128 E4-A-06180 E4-A-00019 E4-A-00249 E4-A-00508 E4-A-05059 E4-A-06027 E4-A-06078 E4-A-06129 E4-A-06181 E4-A-00020 E4-A-00259 E4-A-00509 E4-A-05060 E4-A-06028 E4-A-06079 E4-A-06130 E4-A-06182 E4-A-00026 E4-A-00263 E4-A-00513 E4-A-05061 E4-A-06029 E4-A-06080 E4-A-06131 E4-A-06183 E4-A-00027 E4-A-00265 E4-A-00514 E4-A-05062 E4-A-06030 E4-A-06081 E4-A-06132 E4-A-06184 E4-A-00028 E4-A-00266 E4-A-00515 E4-A-05063 E4-A-06031 E4-A-06082 E4-A-06133 E4-A-06185 E4-A-00037 E4-A-00268 E4-A-00532 E4-A-05064 E4-A-06032 E4-A-06083 E4-A-06134 E4-A-06186 E4-A-00038 E4-A-00269 E4-A-00533 E4-A-05065 E4-A-06033 E4-A-06084 E4-A-06135 E4-A-06187 E4-A-00042 E4-A-00270 E4-A-00549 E4-A-05066 E4-A-06034 E4-A-06085 E4-A-06136 E4-A-06188 E4-A-00046 E4-A-00274 E4-A-00567 E4-A-05067 E4-A-06035 E4-A-06086 E4-A-06137 E4-A-06189 E4-A-00056 E4-A-00276 E4-A-00603 E4-A-05068 E4-A-06036 E4-A-06087 E4-A-06138 E4-A-06190 E4-A-00066 E4-A-00278 E4-A-00604 E4-A-05069 E4-A-06037 E4-A-06088 E4-A-06139 E4-A-06191 E4-A-00067 E4-A-00279 E4-A-00630 E4-A-05071 E4-A-06038 E4-A-06089 E4-A-06140 E4-A-06192 E4-A-00073 E4-A-00280 E4-A-00647 E4-A-05073 E4-A-06039 E4-A-06090 E4-A-06141 E4-A-06193 E4-A-00075 E4-A-00282 E4-A-00660 E4-A-05076 E4-A-06040 E4-A-06091 E4-A-06142 E4-A-06194 E4-A-00076 E4-A-00284 E4-A-05018 E4-A-05077 E4-A-06041 E4-A-06092 E4-A-06143 E4-A-06195 E4-A-00079 E4-A-00286 E4-A-05019 E4-A-05088 E4-A-06042 E4-A-06093 E4-A-06144 E4-A-06196 E4-A-00100 E4-A-00299 E4-A-05022 E4-A-05089 E4-A-06043 E4-A-06094 E4-A-06145 E4-A-06197 E4-A-00106 E4-A-00304 E4-A-05023 E4-A-05090 E4-A-06044 E4-A-06095 E4-A-06146 E4-A-06198 E4-A-00107 E4-A-00323 E4-A-05024 E4-A-05091 E4-A-06045 E4-A-06096 E4-A-06147 E4-A-06199 E4-A-00111 E4-A-00336 E4-A-05026 E4-A-05092 E4-A-06046 E4-A-06097 E4-A-06148 E4-A-06200 E4-A-00115 E4-A-00340 E4-A-05027 E4-A-05093 E4-A-06047 E4-A-06098 E4-A-06149 E4-A-06201 E4-A-00116 E4-A-00341 E4-A-05028 E4-A-05094 E4-A-06048 E4-A-06099 E4-A-06150 E4-A-06202 E4-A-00131 E4-A-00350 E4-A-05029 E4-A-05095 E4-A-06049 E4-A-06100 E4-A-06151 E4-A-06203 E4-A-00133 E4-A-00367 E4-A-05030 E4-A-05096 E4-A-06050 E4-A-06101 E4-A-06152 E4-A-06204 E4-A-00138 E4-A-00376 E4-A-05031 E4-A-05097 E4-A-06051 E4-A-06102 E4-A-06153 E4-A-06205 E4-A-00140 E4-A-00390 E4-A-05032 E4-A-06001 E4-A-06052 E4-A-06103 E4-A-06154 E4-A-06206 E4-A-00142 E4-A-00394 E4-A-05033 E4-A-06002 E4-A-06053 E4-A-06104 E4-A-06155 E4-A-06207 E4-A-00163 E4-A-00397 E4-A-05034 E4-A-06003 E4-A-06054 E4-A-06105 E4-A-06156 E4-A-06208 E4-A-00165 E4-A-00400 E4-A-05035 E4-A-06004 E4-A-06055 E4-A-06106 E4-A-06157 E4-A-06209 E4-A-00166 E4-A-00408 E4-A-05036 E4-A-06005 E4-A-06056 E4-A-06107 E4-A-06158 E4-A-06210 E4-A-00168 E4-A-00420 E4-A-05037 E4-A-06006 E4-A-06057 E4-A-06108 E4-A-06159 E4-A-06211 E4-A-00169 E4-A-00422 E4-A-05038 E4-A-06007 E4-A-06058 E4-A-06109 E4-A-06160 E4-A-06212 E4-A-00192 E4-A-00427 E4-A-05040 E4-A-06010 E4-A-06062 E4-A-06114 E4-A-06167 E4-A-06219 E4-A-00198 E4-A-00428 E4-A-05042 E4-A-06011 E4-A-06063 E4-A-06115 E4-A-06168 E4-A-06220 E4-A-00200 E4-A-00429 E4-A-05043 E4-A-06012 E4-A-06064 E4-A-06116 E4-A-06169 E4-A-06221

Page 5Open in PDF

DOA no. EASA.21J.399 Mandatory Service Bulletin No. MSB-E4-039/1 Austro Engine GmbH Rudolf-Diesel-Strasse 11 A-2700 Wiener Neustadt Tel: +43 2622 23000 FAX: +43 2622 23000-2711

First Issue Date Rev. No. Revision Date Page 24 10 2022 1 24 04 2023 5-15 © 2023 by Austro Engine GmbH – AUSTRIA – www.austroengine.at Group “3” Engines E4-A-00207 E4-A-00432 E4-A-05044 E4-A-06013 E4-A-06065 E4-A-06117 E4-A-06170 E4-A-06223 E4-A-00213 E4-A-00434 E4-A-05045 E4-A-06014 E4-A-06066 E4-A-06118 E4-A-06171 E4-A-06225 E4-A-00214 E4-A-00441 E4-A-05046 E4-A-06015 E4-A-06067 E4-A-06119 E4-A-06172 E4-A-06226 E4-A-00215 E4-A-00442 E4-A-05047 E4-A-06016 E4-A-06068 E4-A-06120 E4-A-06173 E4-A-06227 E4-A-00218 E4-A-00455 E4-A-05048 E4-A-06017 E4-A-06069 E4-A-06121 E4-A-06174 E4-A-06231 E4-A-00219 E4-A-00456 E4-A-05049 E4-A-06018 E4-A-06070 E4-A-06122 E4-A-06175

E4-A-00221 E4-A-00474 E4-A-05050 E4-A-06019 E4-A-06071 E4-A-06123 E4-A-06176 E4-A-00223 E4-A-00475 E4-A-05051 E4-A-06020 E4-A-06072 E4-A-06124 E4-A-06177 E4-A-00224 E4-A-00484 E4-A-05052 E4-A-06021 E4-A-06073 E4-A-06125 E4-A-06178 E4-A-00227 E4-A-00485 E4-A-05053 E4-A-06022 E4-A-06074 E4-A-06126 E4-A-06213 E4-A-00228 E4-A-00487 E4-A-05054 E4-A-06023 E4-A-06075 E4-A-06161 E4-A-06214 E4-A-00232 E4-A-00491 E4-A-05055 E4-A-06024 E4-A-06110 E4-A-06162 E4-A-06215 E4-A-00237 E4-A-00492 E4-A-05056 E4-A-06059 E4-A-06111 E4-A-06164 E4-A-06216 E4-A-00239 E4-A-00498 E4-A-06008 E4-A-06060 E4-A-06112 E4-A-06165 E4-A-06217 E4-A-00423 E4-A-05039 E4-A-06009 E4-A-06061 E4-A-06113 E4-A-06166 E4-A-06218

Table 4 - Affected Engine Serial Numbers, Group 4 Group “4” Engines E4-B-00001 E4-B-00075 E4-B-00147 E4-B-00231 E4-B-00488 E4-B-05008 E4-B-06007 E4-B-06018 E4-B-00028 E4-B-00084 E4-B-00163 E4-B-00273 E4-B-00536 E4-B-05009 E4-B-06008 E4-B-06019 E4-B-00031 E4-B-00099 E4-B-00164 E4-B-00282 E4-B-00540 E4-B-05010 E4-B-06009 E4-B-06020 E4-B-00039 E4-B-00109 E4-B-00171 E4-B-00297 E4-B-00541 E4-B-05011 E4-B-06010 E4-B-06021 E4-B-00049 E4-B-00110 E4-B-00173 E4-B-00379 E4-B-05001 E4-B-05012 E4-B-06011 E4-B-06022 E4-B-00050 E4-B-00112 E4-B-00196 E4-B-00382 E4-B-05002 E4-B-06001 E4-B-06012 E4-B-06023 E4-B-00059 E4-B-00131 E4-B-00202 E4-B-00383 E4-B-05003 E4-B-06002 E4-B-06013 E4-B-06024 E4-B-00060 E4-B-00136 E4-B-00208 E4-B-00417 E4-B-05004 E4-B-06003 E4-B-06014 E4-B-06025 E4-B-00061 E4-B-00140 E4-B-00209 E4-B-00433 E4-B-05005 E4-B-06004 E4-B-06015 E4-B-06027 E4-B-00063 E4-B-00143 E4-B-00216 E4-B-00434 E4-B-05006 E4-B-06005 E4-B-06016 E4-B-06028 E4-B-00065 E4-B-00145 E4-B-00225 E4-B-00487 E4-B-05007 E4-B-06006 E4-B-06017 E4-B-06029

E4-C-00001 E4-C-00313 E4-C-05054 E4-C-05119 E4-C-06035 E4-C-06077 E4-C-06119 E4-C-06162 E4-C-00004 E4-C-00344 E4-C-05055 E4-C-05120 E4-C-06036 E4-C-06078 E4-C-06120 E4-C-06163 E4-C-00007 E4-C-00349 E4-C-05056 E4-C-05121 E4-C-06037 E4-C-06079 E4-C-06121 E4-C-06164 E4-C-00008 E4-C-00350 E4-C-05057 E4-C-05122 E4-C-06038 E4-C-06080 E4-C-06122 E4-C-06165 E4-C-00018 E4-C-00366 E4-C-05058 E4-C-05123 E4-C-06039 E4-C-06081 E4-C-06123 E4-C-06166 E4-C-00041 E4-C-00378 E4-C-05059 E4-C-05124 E4-C-06040 E4-C-06082 E4-C-06124 E4-C-06167 E4-C-00042 E4-C-00473 E4-C-05060 E4-C-05125 E4-C-06041 E4-C-06083 E4-C-06125 E4-C-06168 E4-C-00060 E4-C-00480 E4-C-05061 E4-C-05126 E4-C-06042 E4-C-06084 E4-C-06126 E4-C-06169 E4-C-00061 E4-C-00568 E4-C-05062 E4-C-06001 E4-C-06043 E4-C-06085 E4-C-06127 E4-C-06170 E4-C-00069 E4-C-00569 E4-C-05063 E4-C-06002 E4-C-06044 E4-C-06086 E4-C-06128 E4-C-06171 E4-C-00087 E4-C-00604 E4-C-05064 E4-C-06003 E4-C-06045 E4-C-06087 E4-C-06129 E4-C-06172 E4-C-00088 E4-C-00622 E4-C-05065 E4-C-06004 E4-C-06046 E4-C-06088 E4-C-06130 E4-C-06173 E4-C-00091 E4-C-00623 E4-C-05066 E4-C-06005 E4-C-06047 E4-C-06089 E4-C-06131 E4-C-06174 E4-C-00092 E4-C-05012 E4-C-05067 E4-C-06006 E4-C-06048 E4-C-06090 E4-C-06132 E4-C-06175 E4-C-00118 E4-C-05013 E4-C-05068 E4-C-06007 E4-C-06049 E4-C-06091 E4-C-06133 E4-C-06176 E4-C-00119 E4-C-05014 E4-C-05069 E4-C-06008 E4-C-06050 E4-C-06092 E4-C-06134 E4-C-06177 E4-C-00122 E4-C-05028 E4-C-05070 E4-C-06009 E4-C-06051 E4-C-06093 E4-C-06135 E4-C-06178 E4-C-00125 E4-C-05029 E4-C-05071 E4-C-06010 E4-C-06052 E4-C-06094 E4-C-06136 E4-C-06179 E4-C-00138 E4-C-05030 E4-C-05072 E4-C-06011 E4-C-06053 E4-C-06095 E4-C-06137 E4-C-06180 E4-C-00171 E4-C-05031 E4-C-05073 E4-C-06012 E4-C-06054 E4-C-06096 E4-C-06138 E4-C-06181 E4-C-00172 E4-C-05032 E4-C-05074 E4-C-06013 E4-C-06055 E4-C-06097 E4-C-06139 E4-C-06182 E4-C-00182 E4-C-05033 E4-C-05075 E4-C-06014 E4-C-06056 E4-C-06098 E4-C-06140 E4-C-06183 E4-C-00196 E4-C-05034 E4-C-05076 E4-C-06015 E4-C-06057 E4-C-06099 E4-C-06141 E4-C-06184 E4-C-00199 E4-C-05035 E4-C-05077 E4-C-06016 E4-C-06058 E4-C-06100 E4-C-06142 E4-C-06185

Page 6Open in PDF

DOA no. EASA.21J.399 Mandatory Service Bulletin No. MSB-E4-039/1 Austro Engine GmbH Rudolf-Diesel-Strasse 11 A-2700 Wiener Neustadt Tel: +43 2622 23000 FAX: +43 2622 23000-2711

First Issue Date Rev. No. Revision Date Page 24 10 2022 1 24 04 2023 6-15 © 2023 by Austro Engine GmbH – AUSTRIA – www.austroengine.at Group “4” Engines E4-C-00200 E4-C-05036 E4-C-05078 E4-C-06017 E4-C-06059 E4-C-06101 E4-C-06143 E4-C-06187 E4-C-00201 E4-C-05037 E4-C-05079 E4-C-06018 E4-C-06060 E4-C-06102 E4-C-06144 E4-C-06188 E4-C-00210 E4-C-05038 E4-C-05080 E4-C-06019 E4-C-06061 E4-C-06103 E4-C-06145 E4-C-06190 E4-C-00218 E4-C-05039 E4-C-05081 E4-C-06020 E4-C-06062 E4-C-06104 E4-C-06146 E4-C-06191 E4-C-00227 E4-C-05040 E4-C-05082 E4-C-06021 E4-C-06063 E4-C-06105 E4-C-06148 E4-C-06192 E4-C-00233 E4-C-05041 E4-C-05083 E4-C-06022 E4-C-06064 E4-C-06106 E4-C-06149 E4-C-06193 E4-C-00230 E4-C-05042 E4-C-05084 E4-C-06023 E4-C-06065 E4-C-06107 E4-C-06150 E4-C-156W00010 E4-C-00243 E4-C-05043 E4-C-05085 E4-C-06024 E4-C-06066 E4-C-06108 E4-C-06151 E4-C-156W00012 E4-C-00248 E4-C-05044 E4-C-05086 E4-C-06025 E4-C-06067 E4-C-06109 E4-C-06152 E4-C-156W00011 E4-C-00263 E4-C-05045 E4-C-05087 E4-C-06026 E4-C-06068 E4-C-06110 E4-C-06153 E4-C-156W00009 E4-C-00266 E4-C-05046 E4-C-05088 E4-C-06027 E4-C-06069 E4-C-06111 E4-C-06154 E4-C-156W00013 E4-C-00270 E4-C-05047 E4-C-05095 E4-C-06028 E4-C-06070 E4-C-06112 E4-C-06155 E4-C-156W00016 E4-C-00274 E4-C-05048 E4-C-05097 E4-C-06029 E4-C-06071 E4-C-06113 E4-C-06156 E4-C-156W00015 E4-C-00279 E4-C-05049 E4-C-05112 E4-C-06030 E4-C-06072 E4-C-06114 E4-C-06157 E4-C-156W00017 E4-C-00282 E4-C-05050 E4-C-05113 E4-C-06031 E4-C-06073 E4-C-06115 E4-C-06158 E4-C-156W00019 E4-C-00301 E4-C-05051 E4-C-05114 E4-C-06032 E4-C-06074 E4-C-06116 E4-C-06159 E4-C-156W00018 E4-C-00309 E4-C-05052 E4-C-05115 E4-C-06033 E4-C-06075 E4-C-06117 E4-C-06160 E4-C-156W00020 E4-C-00312 E4-C-05053 E4-C-05118 E4-C-06034 E4-C-06076 E4-C-06118 E4-C-06161 E4-C-156W00014

E4P-B-05001 E4P-B-05002 E4P-B-05003 E4P-B-05004

E4P-C-00020 E4P-C-05014 E4P-C-06019 E4P-C-06038 E4P-C-06057 E4P-C-06077 E4P-C-06096 E4P-C-06115 E4P-C-00023 E4P-C-06001 E4P-C-06020 E4P-C-06039 E4P-C-06058 E4P-C-06078 E4P-C-06097 E4P-C-06116 E4P-C-00051 E4P-C-06002 E4P-C-06021 E4P-C-06040 E4P-C-06059 E4P-C-06079 E4P-C-06098 E4P-C-06117 E4P-C-00066 E4P-C-06003 E4P-C-06022 E4P-C-06041 E4P-C-06060 E4P-C-06080 E4P-C-06099 E4P-C-06118 E4P-C-00069 E4P-C-06004 E4P-C-06023 E4P-C-06042 E4P-C-06061 E4P-C-06081 E4P-C-06100 E4P-C-06119 E4P-C-00224 E4P-C-06005 E4P-C-06024 E4P-C-06043 E4P-C-06062 E4P-C-06082 E4P-C-06101 E4P-C-06120 E4P-C-05001 E4P-C-06006 E4P-C-06025 E4P-C-06044 E4P-C-06063 E4P-C-06083 E4P-C-06102 E4P-C-06121 E4P-C-05002 E4P-C-06007 E4P-C-06026 E4P-C-06045 E4P-C-06064 E4P-C-06084 E4P-C-06103 E4P-C-06124 E4P-C-05003 E4P-C-06008 E4P-C-06027 E4P-C-06046 E4P-C-06065 E4P-C-06085 E4P-C-06104 E4P-C-06125 E4P-C-05004 E4P-C-06009 E4P-C-06028 E4P-C-06047 E4P-C-06066 E4P-C-06086 E4P-C-06105 E4P-C-99213 E4P-C-05005 E4P-C-06010 E4P-C-06029 E4P-C-06048 E4P-C-06067 E4P-C-06087 E4P-C-06106

E4P-C-05006 E4P-C-06011 E4P-C-06030 E4P-C-06049 E4P-C-06068 E4P-C-06088 E4P-C-06107 E4P-C-05007 E4P-C-06012 E4P-C-06031 E4P-C-06050 E4P-C-06069 E4P-C-06089 E4P-C-06108 E4P-C-05008 E4P-C-06013 E4P-C-06032 E4P-C-06051 E4P-C-06070 E4P-C-06090 E4P-C-06109 E4P-C-05009 E4P-C-06014 E4P-C-06033 E4P-C-06052 E4P-C-06071 E4P-C-06091 E4P-C-06110 E4P-C-05010 E4P-C-06015 E4P-C-06034 E4P-C-06053 E4P-C-06072 E4P-C-06092 E4P-C-06111 E4P-C-05011 E4P-C-06016 E4P-C-06035 E4P-C-06054 E4P-C-06074 E4P-C-06093 E4P-C-06112 E4P-C-05012 E4P-C-06017 E4P-C-06036 E4P-C-06055 E4P-C-06075 E4P-C-06094 E4P-C-06113 E4P-C-05013 E4P-C-06018 E4P-C-06037 E4P-C-06056 E4P-C-06076 E4P-C-06095 E4P-C-06114

Page 7Open in PDF

DOA no. EASA.21J.399 Mandatory Service Bulletin No. MSB-E4-039/1 Austro Engine GmbH Rudolf-Diesel-Strasse 11 A-2700 Wiener Neustadt Tel: +43 2622 23000 FAX: +43 2622 23000-2711

1.6. Required Actions and Time of Compliance GROUP “1” ENGINES ALL the engine s/n listed in Table 1 Do an Engine Oil Analysis(2) Within the next 15 FH or with the next scheduled maintenance action, whichever occurs first THEN Every 50 FH up to the engine TBO

GROUP “2” ENGINES ALL the engine s/n listed in Table 2 Do an Engine Oil Analysis(2) Within the next 25 FH or with the next scheduled maintenance action, whichever occurs first THEN Every 100 FH up to the engine TBO

GROUP “3” ENGINES ALL the engines s/n listed in Table 3 with 0 FH to 900 FH Do an Engine Oil Analysis(2)

AND

Within the next 15 FH or with the next scheduled maintenance action, whichever occurs first THEN Every 50 FH up to 900FH Replace the Pistons, the Piston rings and the Con-rods assy(1) OR Replace the engine core At 900 FH ALL the engines s/n listed in Table 3 above 900 FH Replace the Pistons, the Piston rings and the Con-rods assy(1) OR Replace the engine core Within the next 15 FH or with the next scheduled maintenance action, whichever occurs first

GROUP “4” ENGINES ALL the engines s/n listed in Table 4 with 0 FH to 1000 FH Do an Engine Oil Analysis(2)

AND

Within the next 25 FH or with the next scheduled maintenance action, whichever occurs first THEN Every 100 FH up to 1000FH Replace the Pistons, the Piston rings and the Con-rods assy(1) OR Replace the engine core At 1000 FH ALL the engines s/n listed in Table 4 above 1000 FH Replace the Pistons, the Piston rings and the Con-rods assy(1) OR Replace the engine core Within the next 25 FH or with the next scheduled maintenance action, whichever occurs first

(1):

Pistons replacement:

The Pistons, piston rings and con-rods replacement can be accomplished by (or under written authorization of) Austro Engine GmbH.

Page 8Open in PDF

DOA no. EASA.21J.399 Mandatory Service Bulletin No. MSB-E4-039/1 Austro Engine GmbH Rudolf-Diesel-Strasse 11 A-2700 Wiener Neustadt Tel: +43 2622 23000 FAX: +43 2622 23000-2711

(2):

For Group 1 and 3 engines having accumulated 0 to 14FH TSN where the first oil sample is taken, the airplane can be released to service for the residual amount of FH of the required time of compliance (e.g. Oil sample taken at 5FH, release to service for 10FH while waiting for oil analysis results).

For Group 2 and 4 engines having accumulated 0 to 24FH TSN where the first oil sample is taken, the airplane can be released to service for the residual amount of FH of the require d time of compliance (e.g. Oil sample taken at 10FH, release to service for 1 5FH while waiting for oil analysis results).

For Group 1 and 3 engines having accumulated more than 14FH TSN where the first oil sample is taken , the airplane can be released to service only after the receival of the oil analysis results;

For Group 2 and 4 engines having accumulated more than 24FH TSN where the first oil sample is taken, the airplane can be released to service only after the receival of the oil analysis results

For the recurrent oil analysis taken every 50FH or 100FH as applicable, the airplane can be released to service:

• Group 1 and 3: for 50FH, while waiting for the oil analysis results

• Group 2 and 4: for 100FH, while waiting for the oil analysis results 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 of group 3 which was overhauled at 1800FH, the required replacement actions must be accomplished at 2700FH (900FH since overhaul)

e.g. For an engine of group 4 which was overhauled at 1800FH, the required replacement actions must be accomplished at 2800FH (1000FH since overhaul) Authorised release certificate – EASA Form 1 of the replacement parts

Before installing a replacement part(s) carefully read the authorised release certificate – EASA Form 1. The block “Remarks” is used to address limitation(s), if any.

Page 9Open in PDF

DOA no. EASA.21J.399 Mandatory Service Bulletin No. MSB-E4-039/1 Austro Engine GmbH Rudolf-Diesel-Strasse 11 A-2700 Wiener Neustadt Tel: +43 2622 23000 FAX: +43 2622 23000-2711

1.7. Concurrent documents / references Note: If not specified, the latest revision of the referenced documents applies.

• Work instruction WI-MSB-E4-039

• Service Instruction SI-E4-013 “Oil sampling”

1.8. Other publications affected None

1.9. Credits Group 1 and 3 engines:

Engines that have had an oil analysis performed at the last scheduled maintenance (e.g. 100FH maintenance) and have accumulated less than 50FH from that oil analysis will meet the requirements of the first oil analysis to be performed within 15FH, provided the aluminium value is within the value shown in Table 5. (These engines do not need to take the first oil sample).

Group 2 and 4 engines:

Engines that have had an oil analysis performed at the last scheduled maintenance (e.g. 100FH maintenance) will meet the requirements of the first oil analysis to be performed within 25FH, provided the aluminium value is within the value stated in Table 5. (These engines do not need to take the first oil sample).

MSB-E4-039 rev. 0:

Prior compliance with MSB-E4-039 rev.0 is considered as compliance with this MSB.

Page 10Open in PDF

DOA no. EASA.21J.399 Mandatory Service Bulletin No. MSB-E4-039/1 Austro Engine GmbH Rudolf-Diesel-Strasse 11 A-2700 Wiener Neustadt Tel: +43 2622 23000 FAX: +43 2622 23000-2711

2. Technical Details

Engine Oil Analysis

• Start and warm up the engine

• Once the oil temperature is in green arc, shutdown the engine

• Take an oil sample:

o Put a clean container under the oil quick-drain valve (lower side of the oil sump) o Open the oil quick drain valve o Collect ~100ml of oil o Close the oil quick drain valve

• Do an oil analysis according to ASTM D5185 standard

• Send the oil analysis results to Austro Engine via the Diamond Partner Portal

NOTE: Do not use emails to provide the oil analysis results to Austro Engine

• Compare the aluminium contents with the allowable provided in Table 5

Table 5 - Oil check analysis - Aluminium PPM allowable Aluminium ≤ 8PPM

WARNING If Aluminium contents is higher than the indicated values, replace the pistons, the piston rings, the con-rods assy and the crankcase or replace the engine core NOTE:

Austro Engine recommends following the SI -E4-013 “Oil Sampling” and providing the e-mail to which the analysis results can be sent.

In case Spectro or OelCheck laboratories are used, the laboratory approved container to take the oil sample should be used.

NOTE:

Once the engine core (or the pistons, the piston rings, the con-rods assy and the crankcase as applicable) is (are) replaced, no further oil ana lysis according to this MSB are required

Engine core replacement

• Perform the replacement of the engine core in accordance with the instruction provided in the work instruction no. WI-MSB-E4-039-I

NOTE: The engine type plate must be removed from the uninstalled engine core and reinstalled on the new engine core. Instructions are provided in the WI-MSB-E4-039-I

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

• Send the removed parts back to Austro Engine according to the WI-MSB-E4-039-I.

Page 11Open in PDF

DOA no. EASA.21J.399 Mandatory Service Bulletin No. MSB-E4-039/1 Austro Engine GmbH Rudolf-Diesel-Strasse 11 A-2700 Wiener Neustadt Tel: +43 2622 23000 FAX: +43 2622 23000-2711

• Perform the replacement of the pistons, the piston rings, and the con-rod assy in accordance with the instruction provided in the work instruction no. WI-MSB-E4-039-II

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

• Send the removed parts back to Austro Engine according to the WI-MSB-E4-039-II.

Pistons, piston rings, crankcase and con-rod assy replacement

• Perform the replacement of the pistons, the piston rings, the con-rod assy and the crankcase in accordance with the instruction provided in the work instruction no. WI-MSB-E4-039-II

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

• Send the removed parts back to Austro Engine according to the WI-MSB-E4-039-II.

Page 12Open in PDF

DOA no. EASA.21J.399 Mandatory Service Bulletin No. MSB-E4-039/1 Austro Engine GmbH Rudolf-Diesel-Strasse 11 A-2700 Wiener Neustadt Tel: +43 2622 23000 FAX: +43 2622 23000-2711

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-E4-039, latest applicable revision.

3.2. Labour effort 50 hours for Engine Core replacement 60 hours for Pistons, Piston Rings and Con-rods replacement (1) 1 hour per MSB Recurrent Oil sampling related labour (2)

(1):

10 hours for core removal and shipment to a service centre 35 hours for replacement of the pistons, piston rings, con-rods, and shipment of the core 15 hours for core installation, engine ground test run and a/c release to service

(2): Claim quarterly, scheduled maintenance oil sampling is excluded

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.

Additional fees for oil samples required by this MSB will be covered by Austro Engine GmbH warranty under its currently valid GTC only for oil analysis performed at Spectro or Oelcheck laboratories.

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

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

Pages 13–15 of 15