ENS Event | |
|---|---|
05:00 Sep 28, 2012 | |
| Title | Part 21 - Fairbanks Morse Opposed Piston Edg Fuel Oil Pump Leak |
| Event Description | The following information was received via fax and email:
Utilities operating Fairbanks Morse (FM) Opposed Piston (OP) Emergency Diesel Generators (EDG) are as follows: Constellation Energy - Calvert Cliffs; Dominion - North Anna, Millstone; DTE - Fermi II; Entergy - Vermont Yankee; Arkansas Nuclear One; Exelon - Limerick, Peach Bottom, Three Mile Island; Next Era Energy - Duane Arnold; Progress Energy - H.B. Robinson, Crystal River 3; Southern Company - Georgia Power (Plant Hatch), Alabama Power (Plant Farley); Xcel Energy - Prairie Island. The defect is a significant oil leak from the fuel oil pump shaft. Leakage will occur if the mechanical seal area within the pump is displaced by an impact to the pump shaft during shipment and handling. Even with a significant leak the pump has sufficient capacity to provide the proper operating pressure and volume of fuel oil to start the engine / EDG within the design specifications and continue operating the EDG at 100% load. However, the significant amount of fuel oil leaking while the system is under pressure, during standby and operating conditions, could potentially result in having an inadequate volume of stored fuel for the EDG to fulfill the seven day operating mission. FM has instituted the following corrective actions which will be effective on all shipments after September 28, 2012: 1. Hydrostatic testing will be performed at FM during the dedication. 2. Outgoing shipments will be packaged in accordance with a new packaging procedure which requires the pump be secured to a piece of wood or directly to a skid, thus prevents an impact to the shaft during shipment. Customers should perform a visual inspection after installation to ensure the fuel pump has no leaks. Defective pumps will have an immediate and significant leak. All installed pumps that are free of leaks are acceptable for continued operation. Fairbanks Morse Report Number 12-01 - Issued Sept 28, 2012 |
| Where | |
|---|---|
| Fairbanks Morse Beloit, Wisconsin (NRC Region 3) | |
| Organization: | Fairbanks Morse |
| Reporting | |
| 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect | |
| Time - Person (Reporting Time:+16.05 h0.669 days <br />0.0955 weeks <br />0.022 months <br />) | |
| Opened: | Dominic Dedolph 21:03 Sep 28, 2012 |
| NRC Officer: | Pete Snyder |
| Last Updated: | Sep 28, 2012 |
| 48359 - NRC Website | |
Fairbanks Morse with 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect | |
WEEKMONTHYEARENS 545062020-01-31T06:00:00031 January 2020 06:00:00
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