# Austro Engine Engine Mandatory Service Bulletin MSB-E4-031/1: Revision 1 - Rights: © Austro Engine. Filed by the FAA in regulations.gov docket FAA-2021-0654; AD 2021-17-01 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication. - Document: [Austro Engine Engine Mandatory Service Bulletin MSB-E4-031/1](https://openairdocs.org/service-documents/austro-engine/msb-e4-031-1.md) - Title as filed: MSB E4 031 R1 - Pages: 23 - PDF: https://openairdocs.org/files/sha256/45/4d/454d28ea9b8ac61242aa559017d18c1e9e4b7ac93c8ff0d220fdf22049cd16e7 - Page: https://openairdocs.org/service-documents/austro-engine/msb-e4-031-1/file/454d28ea9b8a ## Text Each page's text from the PDF; open the PDF at a page with #page=N. ### Page 1 Mandatory Service Bulletin No. MSB-E4-031/1 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 14 Jun 2021 1 01 07 2021 1-23 © 2021 by Austro Engine GmbH – AUSTRIA – www.austroengine.at MANDATORY SSSEEERRRVVVIIICCCEEE BBBUUULLLLLLEEETTTIIINNN NNNooo... MMMSSSBBB---EEE444---000333111///111 1. BASIC INFORMATION 1.1. SUBJECT Oil pump replacement 1.2. ENGINES AFFECTED Engine affected: E4 Series Note: with the revision 1 of this service bulletin, Oil Pump s/ns and Engine s/ns are revised. Changes are highlighted in yellow for added s/ns, in grey strikethrough (example) for removed s/ns. Serial numbers affected: E4-A-00075 E4-A-06057 E4-A-00485 E4-A-00350 E4-A-06070 E4-A-06069 E4-A-06071 E4-A-06072 E4-A-06073 E4-A-06074 E4-A-00279 E4-A-06077 E4-A-00441 E4-A-00244 E4-A-06075 E4-A-00270 E4-A-00215 E4-A-06076 E4-A-06079 E4-A-06078 E4-A-06067 E4-A-06080 E4-A-06068 E4-A-00492 E4-A-00192 E4-A-06083 E4-A-06082 E4-A-06094 E4-A-00214 E4-A-06092 E4-A-06093 E4-A-00514 E4-A-06081 E4-A-00239 E4-A-00603 E4-A-00115 E4-A-00142 E4-A-06085 E4-A-06095 E4-A-06066 E4-A-06084 E4-A-00428 E4-A-06086 E4-A-06097 E4-A-06088 E4-A-06089 E4-B-00143 E4-B-00382 E4-B-06001 E4-B-06002 E4-C-06051 E4-C-06052 E4-C-00138 E4-C-06040 E4-C-06060 E4-C-06039 E4-C-06061 E4-C-06041 E4-C-00042 E4-C-06062 E4-C-06063 E4-C-06055 E4-C-06043 E4-C-00604 E4-C-06064 E4-C-06054 E4-C-06066 E4-C-06067 E4-C-00243 E4-C-06065 E4-C-06068 E4-C-06048 E4-C-06069 E4-C-06056 E4-C-06057 E4-C-06070 E4-C-06071 E4-C-06058 E4-C-06072 E4-C-00344 E4P-C-06036 E4P-C-06053 E4P-C-06035 E4P-C-06039 E4P-C-06037 E4P-C-06040 E4P-C-06038 E4P-C-06042 E4P-C-06041 E4P-C-06044 E4P-C-06046 E4P-C-06045 E4P-C-06047 E4P-C-06050 E4P-C-06051 E4P-C-06049 E4P-C-06043 E4P-C-06048 E4-C-156W00013 E4-C-156W00015 E4-C-156W00016 Table 1 - Affected engine S/Ns ### Page 2 Mandatory Service Bulletin No. MSB-E4-031/1 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 14 Jun 2021 1 01 07 2021 2-23 © 2021 by Austro Engine GmbH – AUSTRIA – www.austroengine.at Part affected: E4A-50-000-BHY, Oil Pump Affected oil pump serial numbers installed on new or overhauled engines having S/N listed in Table 1, and Oil Pump in stock, included to prevent engine installation: 00001 00003 00004 00005 00006 00007 00008 00009 00011 00012 00013 00014 00017 00019 00028 00032 00035 00038 00039 00041 00045 00046 00047 00048 00049 00050 00055 00059 00060 00061 00064 00065 00069 00071 00072 00074 00077 00078 00081 00082 00084 00086 00087 00088 00089 00090 00091 00092 00093 00094 00095 00096 00097 00098 00099 00103 00104 00105 00106 00107 00108 00109 00110 00111 00112 00113 00115 00116 00117 00119 00120 00123 00124 00125 00127 00128 00129 00130 00131 00132 00134 00135 00136 00137 00138 00139 00140 00141 00142 00143 00144 00145 00146 00147 00148 00149 00150 00151 00152 00153 00154 00155 00156 00157 00158 00159 00160 00161 00162 00163 00164 Table 2 - Affected oil pump S/Ns installed on new or overhauled engines Affected oil pump serial numbers that are provided in the field as spare part for the accomplishment instructions of the MSB-E4-030: 00010 00015 00016 00018 00020 00021 00022 00023 00024 00025 00026 00027 00029 00030 00031 00033 00034 00036 00037 00042 00043 00044 00051 00052 00053 00054 00056 00057 00058 00062 00063 00066 00067 00068 00070 00073 00075 00076 00079 00080 00083 00085 00101 00102 00114 00118 00121 00133 00165 00166 Table 3 - Affected oil pump S/Ns provided as spare parts NOTE: In case the MSB-E4-030 is also applicable to the engine and: Has been conducted Check the maintenance documentation for the serial number of the re -installed oil pump. If the serial number of the re-installed oil pump is listed in Table 3, then a mandatory replacement of the oil pump in accordance with MSB-E4-031 is required. Has not been conducted Check the spare part n umber and serial number, against the criteria of Section 1.2 of this Service Bulletin. D o not install any spare part having the serial number listed in Table 3, then contact Austro Engine to obtain a serviceable part. Engines that comply with MSB -E4-030 and have a serviceable part installed, do not need to comply with the instr uction of the MSB-E4-031. ### Page 3 Mandatory Service Bulletin No. MSB-E4-031/1 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 14 Jun 2021 1 01 07 2021 3-23 © 2021 by Austro Engine GmbH – AUSTRIA – www.austroengine.at 1.3. REASON Deviation of the oil pump inner gear leading to premature wear was discovered, resulting into oil system contamination with possible jamming of the oil pump. 1.4. TIME OF COMPLIANCE For E4A engines: - Before the next flight For E4B/C/P engines: - Before the next flight (ferry fly to a maintenance service allowed) 1.5. CONCURRENT DOCUMENTS / REFERENCES Maintenance Manual E4.08.04, latest revision 1.6. OTHER PUBLICATIONS AFFECTED None ### Page 4 Mandatory Service Bulletin No. MSB-E4-031/1 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 14 Jun 2021 1 01 07 2021 4-23 © 2021 by Austro Engine GmbH – AUSTRIA – www.austroengine.at 2. TECHNICAL DETAILS 2.1. DELIVERY CONDITION Delivery of the new oil pump E4A-50-000-AHY Fig. 0 Delivered oil pump Fig. 1 Remove the following parts of the new oil pump: - Cover of the chain gear - Original oil suction pipe (including screws and oil strainer) Note: Discard the removed parts. The screws can be used as alternative (see step 4, figure 12). Or as alternative: Delivery of the new oil pump p/n E4A-50-000-BHY Fig. 2 Delivered oil pump ### Page 5 Mandatory Service Bulletin No. MSB-E4-031/1 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 14 Jun 2021 1 01 07 2021 5-23 © 2021 by Austro Engine GmbH – AUSTRIA – www.austroengine.at 2.2. ACCOMPLISHMENT / INSTRUCTIONS 2.2.1 Accomplishment Instruction for pump E4A-50-000-AHY Make sure that the working area is clean. Use clean gloves. Make sure that no sand or dirt goes into the engine. 1. Replace the engine oil filter according to Maintenance Manual, Ch. 79. Visually examine the used Oil Filter for contamination and metal abrasion. If an abnormal condition is found (metal shavings exceeding 1.5 mm; concentration of particles; clogged filter), please contact Austro Engine for further instructions. 2. Remove the oil sump according to Maintenance Manual Ch.79, steps as required. 3. Remove the oil pump according to following steps: Fig. 3 After removal of the oil sump Fig. 4 Loosen two screws [01] that attach the chain cover [02] to the oil pump and remove the chain cover. [02] [01] ### Page 6 Mandatory Service Bulletin No. MSB-E4-031/1 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 14 Jun 2021 1 01 07 2021 6-23 © 2021 by Austro Engine GmbH – AUSTRIA – www.austroengine.at Fig. 5 Remove the screw [03] that attaches the oil pump to the oil repellent. Fig. 6 Fig. 7 Remove three screws [04] that attach the oil pump to the crankcase. [03] [04] [04] ### Page 7 Mandatory Service Bulletin No. MSB-E4-031/1 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 14 Jun 2021 1 01 07 2021 7-23 © 2021 by Austro Engine GmbH – AUSTRIA – www.austroengine.at Fig. 8 [04] ### Page 8 Mandatory Service Bulletin No. MSB-E4-031/1 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 14 Jun 2021 1 01 07 2021 8-23 © 2021 by Austro Engine GmbH – AUSTRIA – www.austroengine.at Fig. 9 Fig. 10 Loosen the oil pump chain gear from the oil pump chain. Remove the oil pump. Examine the oil pump for blockage. Make sure that the pump gears move freely when turned by hand. Removed oil pump (E4A-50-000-BHY) Fig. 11 Loosen three screws [05] of the oil pump and remove the oil suction pipe with the integrated oil strainer [06] (E4A-50-100- BHY) from the old oil pump. Note: The oil suction pipe with oil strainer and the screws [05] must be reused for the new oil pump installation. After removal of the oil suction pipe, examine the oil pump gears for damage. In case of a blocked, and/or partially blocked, and/or damaged oil pump, please contact Austro Engine for further instructions. NOTE: Removed oil pump must be always returned to Austro Engine, including the engine flight hours recorded at the time of replacement. [05] [05] [06] ### Page 9 Mandatory Service Bulletin No. MSB-E4-031/1 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 14 Jun 2021 1 01 07 2021 9-23 © 2021 by Austro Engine GmbH – AUSTRIA – www.austroengine.at Re-used Parts: Oil suction pipe with oil strainer (E4A-50-100-BHY) All screws Chain cover (E4A-50-200-000) 4. Clean the parts before re-installation. The parts must be free of adhesive or sealing residues. 5. Install the Oil Pump according to following steps: New oil pump Fig. 12 Fit the oil suction pipe [06] (E4A-50-100- BHY / re-used from the old oil pump) in place on the valve housing (E4A-50-520- 000) and then insert the three hexagon screws [05] (ISO_4014-M6xM60-10.9 with washers ISO_7089-6 / alternative MBN 10 143-M6x63-10.9) through the holes. ### Page 10 Mandatory Service Bulletin No. MSB-E4-031/1 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 14 Jun 2021 1 01 07 2021 10-23 © 2021 by Austro Engine GmbH – AUSTRIA – www.austroengine.at Apply Loctite 278 or Loctite 2701. Tighten the oil pump housing with 12 Nm. Fig. 13 Fig. 14 Make sure that the circlips [07] (E4A-50- 300-801) [08] (E4A-50-400-801) used to secure both plugs on the oil pump is in the correct position. [07] [08] ### Page 11 Mandatory Service Bulletin No. MSB-E4-031/1 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 14 Jun 2021 1 01 07 2021 11-23 © 2021 by Austro Engine GmbH – AUSTRIA – www.austroengine.at Fig. 15 Fig. 16 Discard the O-Ring (OR_16x3-ACM 70) between the oil pump and the crankshaft housing. Install a new O-Ring. Make sure it is correctly fitted. Fig. 17 Install the oil pump chain. Apply some approved engine oil (refer to the MM) on the chain before installation. O-Ring ### Page 12 Mandatory Service Bulletin No. MSB-E4-031/1 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 14 Jun 2021 1 01 07 2021 12-23 © 2021 by Austro Engine GmbH – AUSTRIA – www.austroengine.at Fig. 18 Fig. 19 Fig. 20 Install the oil pump with O-Ring and three screws [04] (M7x27 – 8.8 – DBL 9400.40) on the crankcase. Apply Loctite 2701 or 278 on the thread and tighten with a torque of 14 Nm. Install the screw [03] that attaches the oil pump to the oil repellent. Apply with Loctite 243 and torque it with 12 Nm. [03] ### Page 13 Mandatory Service Bulletin No. MSB-E4-031/1 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 14 Jun 2021 1 01 07 2021 13-23 © 2021 by Austro Engine GmbH – AUSTRIA – www.austroengine.at Fig. 21 Install the oil pump chain cover Put the chain cover [02] in place on the oil pump and tighten the screws [01] (ISO8102-M6x20-10.9) (x2) with 12 Nm. 6. Install the Oil Sump according to the Maintenance Manual, Ch.79. 7. Replace the engine oil according to Maintenance Manual, Ch. 79. 8. Clean the working area. 9. Perform an Engine Ground Run. Refer to the Maintenance Manual, Ch.71. 10. Fill the completion form, §6 “Appendix” of the Service Bulletin [01] [02] ### Page 14 Mandatory Service Bulletin No. MSB-E4-031/1 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 14 Jun 2021 1 01 07 2021 14-23 © 2021 by Austro Engine GmbH – AUSTRIA – www.austroengine.at 2.2.2 Accomplishment Instruction for p/n E4A-50-000-BHY Make sure that the working area is clean. Use clean gloves. Make sure that no sand or dirt goes into the engine. 1. Replace the engine oil filter according to Maintenance Manual, Ch. 79. Visually examine the used Oil Filter for contamination and metal abrasion. If an abnormal condition is found (metal shavings exceeding 1.5 mm; concentratio n of particles; clogged filter), please contact Austro Engine for further instructions. 2. Remove the oil sump according to Maintenance Manual Ch.79, steps as required. 3. Remove the oil pump according to following steps: Fig. 3B After removal of the oil sump Fig. 4B Loosen two screws [01] that attach the chain cover [02] to the oil pump and remove the chain cover. [02] [01] ### Page 15 Mandatory Service Bulletin No. MSB-E4-031/1 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 14 Jun 2021 1 01 07 2021 15-23 © 2021 by Austro Engine GmbH – AUSTRIA – www.austroengine.at Fig. 5B Remove the screw [03] that attaches the oil pump to the oil repellent. Fig. 6B Fig. 7B Remove three screws [04] that attach the oil pump to the crankcase. [03] [04] [04] ### Page 16 Mandatory Service Bulletin No. MSB-E4-031/1 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 14 Jun 2021 1 01 07 2021 16-23 © 2021 by Austro Engine GmbH – AUSTRIA – www.austroengine.at Fig. 8B Fig. 9B Fig. 10B Loosen the oil pump chain gear from the oil pump chain. Remove the oil pump. Examine the oil pump for blockage. Make sure that the pump gears move freely when turned by hand. Removed oil pump (E4A-50-000-BHY) In case of a blocked, and/or partially blocked, and/or damaged oil pump, please contact Austro Engine for further instructions. NOTE: Removed oil pump must be always returned to Austro Engine, including the engine flight hours recorded at the time of replacement. [04] ### Page 17 Mandatory Service Bulletin No. MSB-E4-031/1 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 14 Jun 2021 1 01 07 2021 17-23 © 2021 by Austro Engine GmbH – AUSTRIA – www.austroengine.at Fig. 11B Fig. 12B Make sure that the circlips [07] (E4A-50- 300-801) [08] (E4A-50-400-801) used to secure both plugs on the oil pump is in the correct position. [07] [08] ### Page 18 Mandatory Service Bulletin No. MSB-E4-031/1 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 14 Jun 2021 1 01 07 2021 18-23 © 2021 by Austro Engine GmbH – AUSTRIA – www.austroengine.at Fig. 13B Fig. 14B Discard the O-Ring (OR_16x3-ACM 70) between the oil pump and the crankshaft housing. Install a new O-Ring. Make sure it is correctly fitted. Fig. 15B Install the oil pump chain. Apply some approved engine oil (refer to the MM) on the chain before installation. O-Ring ### Page 19 Mandatory Service Bulletin No. MSB-E4-031/1 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 14 Jun 2021 1 01 07 2021 19-23 © 2021 by Austro Engine GmbH – AUSTRIA – www.austroengine.at Fig. 16B Fig. 17B Fig. 18B Install the oil pump with O-Ring and three screws [04] (M7x27 – 8.8 – DBL 9400.40) on the crankcase. Apply Loctite 2701 or 278 on the thread and tighten with a torque of 14 Nm. Install the screw [03] that attaches the oil pump to the oil repellent. Apply with Loctite 243 and torque it with 12 Nm. [03] ### Page 20 Mandatory Service Bulletin No. MSB-E4-031/1 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 14 Jun 2021 1 01 07 2021 20-23 © 2021 by Austro Engine GmbH – AUSTRIA – www.austroengine.at Fig. 19B Install the oil pump chain cover Put the chain cover [02] in place on the oil pump and tighten the screws [01] (ISO8102-M6x20-10.9) (x2) with 12 Nm. 1. Install the Oil Sump according to the Maintenance Manual, Ch.79. 2. Replace the engine oil according to Maintenance Manual, Ch. 79. 3. Clean the working area. 4. Perform an Engine Ground Run. Refer to the Maintenance Manual, Ch.71. 5. Fill the completion form, §6 “Appendix” of the Service Bulletin 2.3. ILLUSTRATIONS None. 2.4. MASS (WEIGHT) Not affected. 2.5. APPROVAL STATEMENT The technical content of this document has been approved under the authority of DOA No. EASA.21J.399. [01] [02] ### Page 21 Mandatory Service Bulletin No. MSB-E4-031/1 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 14 Jun 2021 1 01 07 2021 21-23 © 2021 by Austro Engine GmbH – AUSTRIA – www.austroengine.at 3. PLANNING INFORMATION 3.1. MATERIAL & AVAILABILITY Quantity Part Description p/n Part Number 1 oil pump SB Kit 1 oil filter SB Kit 7.5 l engine oil - 1 O-Ring (OR_16x3-ACM 70) 1 oil sump gasket (E4A-05-000-002 or E4A-05-000-003 as alternative) Note: Use only engine oil listed in the Operation Manual Note: For the Consumable list, refer to the Maintenance Manual, Ch. 01. 3.2. SPECIAL TOOLS Number Description Dimensions 1 Engine stand - 2 Wrench - 3 Oil Filter Wrench - 4 Oil Drain Pan - 5 Oil Funnel - 6 Socket tool set - 7 Latex gloves - 8 Container min 8.5 l 3.3. LABOR EFFORT 16 hours ### Page 22 Mandatory Service Bulletin No. MSB-E4-031/1 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 14 Jun 2021 1 01 07 2021 22-23 © 2021 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 Section 2.2 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 c ase 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) 5. EXPLANATORY NOTES 5.1. SYMBOL EXPLANATION 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 ### Page 23 Mandatory Service Bulletin No. MSB-E4-031/1 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 14 Jun 2021 1 01 07 2021 23-23 © 2021 by Austro Engine GmbH – AUSTRIA – www.austroengine.at 6. APPENDIX Service Bulletin Completion Notification Note: Aircraft owner: Aircraft Operator: If different from the owner Aircraft: Aircraft Serial Number: Aircraft Marks: Engine (RH) S/N: For single engine a/c, fill only one row Engine (LH) S/N: Flight Hours: Service center: Company Name or reference of the person(s) performing the oil pump replacement Removed Oil pump S/N: Refer to the figure 1 to identify the correct serial number to be provided Re-installed Oil pump S/N: Date, Name Signature NOTE: A scanned version of this form must be provided to service@austroengine.at NOTE: The original filled version of this form, must be packed with the removed oil pump, and provided to Austro Engine Figure 1 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. 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