ENS 42597

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v t e ENS Event
02:00 May 23, 2006
Title	Special Nuclear Material (.003 Grams) Lost
Event Description	During ongoing activities to remove non-fuel material from the Pilgrim Spent Fuel Pool it has been identified that an irradiated neutron detector containing a very small quantity (less than 0.003 grams) of special nuclear material is not in its expected location. Per the inventory sheets the neutron detector should have been enclosed in a "dry tube" in the Spent Fuel Pool. Processing of the "dry tube" for shipment identified that the neutron detector is not in its expected location. This condition is being conservatively reported under 10CFR74.11. There is no evidence of theft or diversion. Investigation is continuing. The licensee notified the NRC Resident Inspector. * * UPDATE ON 5/26/2006 AT 15:25 FROM MICHAEL McDONNELL TO ABRAMOVITZ * * * In Event Notification 42597 and 42599 on May 22 and May 23, 2006, respectively, Pilgrim Nuclear Power Station notified the NRC that during ongoing activities to remove non-fuel material from the Pilgrim Spent Fuel Pool it had been identified that 2 irradiated neutron detectors containing very small quantities (less than 0.003 grams each) of special nuclear material were not in their expected locations. Per the inventory sheets the neutron detectors should have been enclosed in 'dry tubes' in the Spent Fuel Pool. Processing of the 'dry tubes' identified that the neutron detectors are not in their expected locations. There were a total of twelve (12) 'dry tubes' that our records show enclosed neutron detectors. As part of the investigation associated with Event Notification 42597, all twelve (12) of these 'dry tubes' have been inspected. Three (3) of the 'dry tubes' were found to contain neutron detectors consistent with plant records. Nine (9) of the 'dry tubes' were found to contain no neutron detector which is not consistent with the plant records. The irradiated neutron detectors would have each contained a very small quantity (less than 0.003 grams each) of special nuclear material. This condition is being conservatively reported under 10CFR74.11. There is no evidence of theft or diversion. Investigation is continuing. The licensee notified the NRC Resident Inspector. Notified IRD (Blount and Leach), R1DO (Gray), NRR (Haney), ILTAB (English), DHS SWO (Cassandra), FEMA (S. Kimbrell), DOE (Ronnie), EPA (Crews), USDA (Margaret), and HHS (Marcy).

ENS 42597 +/-
Where
Pilgrim Massachusetts (NRC Region 1)
Reporting

10 CFR 74.11(a)
Time - Person (Reporting Time:+-3.92 h-0.163 days <br />-0.0233 weeks <br />-0.00537 months <br />)
Opened:	Ken Goodall 22:05 May 22, 2006
NRC Officer:	John Knoke
Last Updated:	May 26, 2006
42597 - NRC Website Loading map... {"minzoom":false,"maxzoom":false,"mappingservice":"leaflet","width":"350px","height":"250px","centre":false,"title":"","label":"","icon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"zoom":6,"defzoom":14,"layers":["OpenStreetMap"],"image layers":[],"overlays":[],"resizable":false,"fullscreen":false,"scrollwheelzoom":true,"cluster":false,"clustermaxzoom":20,"clusterzoomonclick":true,"clustermaxradius":80,"clusterspiderfy":true,"geojson":"","clicktarget":"","imageLayers":[],"locations":[{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca class=\"mw-selflink selflink\"\u003EENS 42597\u003C/a\u003E - \u003Ca href=\"/Pilgrim\" title=\"Pilgrim\"\u003EPilgrim\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003ESpecial Nuclear Material (.003 Grams) Lost\n\u003C/p\u003E\u003C/div\u003E","title":"ENS 42597 - Pilgrim\n","link":"","lat":41.942861111111114,"lon":-70.57673055555556,"icon":""}],"imageoverlays":null}
v • d • e

v t e Emergency Notification System
Pilgrim with 10 CFR 74.11(a)
WEEKMONTHYEAR2006-05-23T02:00:00 [Table view]
[ENS list for Pilgrim]

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