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ROTAX Aircraft Engines SB-912 i-013_915 i A-012 Replacement of electrical fuel pump

Replacement of electrical fuel pump(s) for ROTAX® Aircraft Engines
To obtain satisfactory results, procedures specified in this publication must be accomplished with accepted methods in accordance with prevailing legal regulations. BRP-Rotax GmbH & Co KG cannot accept any responsibility for the quality of work performed in accomplishing the requirements of this publication.

Applicability
NOTE: Make sure to check the whole set of criteria mentioned in this section. The following single fuel pumps (with S/N listed below) may be installed in all versions of ROTAX® engine types 912 i and 915 i A Series and/or accessory/spare parts/fuel pump modules.
Fuel pump serial number:

Fuel pump Description Serial number
Part no. 889694* Fuel pump from S/N 180500 up to S/N 203724 inclusive

Concurrent ASB/SB/SI and SL
In addition to this Service Bulletin the following documents must be observed and complied with:

  • in general all relevant Alert Service Bulletins (ASB), Service Bulletins (SB), Service Instructions (SI), Service Letters (SL), Service Instruction Parts and Accessories (SI-PAC) with relevance to perform this maintenance, repair or overhaul task.
  • Alert Service Bulletin ASB-915 i-008/ASB-912 i-011, title “Replacement of fuel pump assy.”, current issue.
  • Alert Service Bulletin ASB-912 i-010/ASB-915 i-006, title “Inspection and/or replacement of fuel pump assy.”, current issue.
  • Service Instruction SI-912 i-019/SI-915 i-005, title “Introduction of revised fuel pump assy.“, current issue.
  • Service Instruction SI-912 i-025, title ”Fuel pump assembly”, current issue.
  • Service Instruction Parts and Accessories SI-PAC-016, title ”Fuel pump assembly”, current issue.

Reason
Due to deviations in the manufacturing process of the electric fuel pump, a malfunction of fuel supply may occur. Possible effect in flight might be a loss of the redundancy within the fuel pump system. On ground the failure might be detected during the run-up check.

References
In addition to this technical information refer to current issue of

  • in general Illustrated Parts Catalog (IPC) and in particular: Chapter 73-10-00
  • in general Operators Manual (OM)
  • in general Installation Manual (IM)
  • in general Maintenance Manual Line (MML)
  • in general Maintenance Manual Heavy (MMH) and in particular: Chapter 73-10-00

Compliance

  1. On undelivered engines/spare parts prior to delivery
  2. Before the initial installation of the engine and/or spare part
  3. Carry out this replacement of the fuel pump assemblies listed in section 1.1., according to the instructions in Chapter 3 at the next ROTAX® scheduled maintenance event, but at the latest after 1 year (from the date of the initial issue of this Service Bulletin)

Labor time and credit
A labor credit will be provided for work performed by a technician with current applicable iRMT rating.

Work performed iRMT rating required Labor credit
Replacement of both single fuel pumps in fuel pump assy. as per Chapter 3 on engine and already installed. iRMT Maintenance Service* or Heavy 1.5 hours

For an iRMT Maintenance Service rated maintenance technician in this specific case an approval by a ROTAX® Authorized Distributor or their independent Service Centers must be given to ensure that the maintenance technician is capable of such work. in this case no labor will be covered for engine test run as this work is anyhow performed in course of a standard maintenance event. To apply for labor credit, contact your ROTAX® Authorized Distributor or their independent Service Centers.

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