ENS 46764
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ENS Event | |
|---|---|
19:30 Apr 16, 2011 | |
| Title | Air Monitoring Vacuum Pumps Disabled |
| Event Description | The air monitoring vacuum pumps were disabled for approximately 30 minutes. The soft water supply to the air monitoring vacuum pump seals on the 2nd floor of the Feed Materials Building (FMB) was shut down for Annual Shut Down. These pumps provide vacuum for the stack monitoring and personnel area monitoring systems in the FMB. While the soft water system was shut down, a sanitary well water supply was being used for the vacuum pump seals. A back flow preventer in the sanitary water supply line malfunctioned and interrupted flow to the pump seals. This caused the vacuum pumps to be shut down until a temporary water supply could be established. A temporary water supply was reestablished to the pump seals. The pumps were restored to service at approximately 1500 [CDT]. The back flow preventer has been replaced and the system is currently working properly.
There were no indications that activities performed in the FMB caused a release during the time period that the stack and personnel monitoring system was out of service. The licensee notified R2 (Hartland). |
| Where | |
|---|---|
| Honeywell International, Inc. Metropolis, Illinois (NRC Region 2) | |
| License number: | SUB-526 |
| Reporting | |
| 10 CFR 40.60(b)(2) | |
| Time - Person (Reporting Time:+16.23 h0.676 days <br />0.0966 weeks <br />0.0222 months <br />) | |
| Opened: | Bob Stokes 11:44 Apr 17, 2011 |
| NRC Officer: | Howie Crouch |
| Last Updated: | Apr 17, 2011 |
| 46764 - NRC Website | |
Honeywell International, Inc. with 10 CFR 40.60(b)(2) | |
WEEKMONTHYEARENS 565862023-06-21T20:30:00021 June 2023 20:30:00
[Table view]10 CFR 40.60(b)(2) Fuel Facility - Safety Equipment Failed to Function ENS 508752015-03-09T20:00:0009 March 2015 20:00:00 10 CFR 40.60(b)(2) Temporary Loss of Power to Air Monitoring Pumps ENS 508582015-03-02T15:20:0002 March 2015 15:20:00 10 CFR 40.60(b)(2) Vacuum Pump Seal Water Supply Failure ENS 495522013-11-17T20:00:00017 November 2013 20:00:00 10 CFR 40.60(b)(2) Remotely Operated Isolation Valve Failed to Close ENS 468312011-05-08T12:30:0008 May 2011 12:30:00 10 CFR 40.60(b)(2) 24 Hour Report Due to Loss of Vacuum Pumps for Air and Stack Monitoring ENS 467812011-04-23T22:00:00023 April 2011 22:00:00 10 CFR 40.60(b)(2) Loss of Power Shuts Down Air Monitoring Vacuum Pumps ENS 467642011-04-16T19:30:00016 April 2011 19:30:00 10 CFR 40.60(b)(2) Air Monitoring Vacuum Pumps Disabled ENS 464442010-11-30T11:00:00030 November 2010 11:00:00 10 CFR 40.60(b)(2) Loss of Power to Instrumentation in the Operating Units of the Feed Materials Building ENS 428362006-09-10T20:30:00010 September 2006 20:30:00 10 CFR 40.60(b)(2) Loss of Motor Control Center Due to Electrical Short ENS 412702004-12-17T18:00:00017 December 2004 18:00:00 10 CFR 40.60(b)(2) Standby Emergency Diesel Generator Declared Inoperable. ENS 409782004-08-23T14:00:00023 August 2004 14:00:00 10 CFR 40.60(b)(2) Emergency Diesel Generator Start Failure ENS 400892003-08-19T16:00:00019 August 2003 16:00:00 10 CFR 40.60(b)(2) Partial Loss of Fire Protection System Due to Pipe Leak at Honeywell Metropolis 2023-06-21T20:30:00 | |
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