ML20254A113
| ML20254A113 | |
| Person / Time | |
|---|---|
| Site: | 07001113 |
| Issue date: | 09/10/2020 |
| From: | Murray S Global Nuclear Fuel |
| To: | Document Control Desk, Office of Nuclear Material Safety and Safeguards |
| References | |
| M200127 | |
| Download: ML20254A113 (5) | |
Text
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Global Nuclear Fuel M200127 September 10, 2020 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555-0001 Global Nuclear Fuel Scott P. Murray Manager, Facility Licensing 3901 Castle Hayne Road P.O Box780 Wilmington, NC 28402 USA T (910) 819-5950 Scott.murray@ge com
Subject:
GNF-A Written Follow-up Report-Fire System Impairments
References:
- 1) NRG License SNM-1097, Docket 70-1113
- 2) GNF-A Event Report 54777, 7/14/2020
- 3) GNF-A Event Report 54797, 7/22/2020
Dear Sir or Madam:
In accordance with 10 CFR 70.74(b), Global Nuclear Fuel-Americas, LLC (GNF-A) hereby submits a written follow-up report for Event Notification 54777 which was provided to NRG on July 14, 2020 (Reference 2) and Event Notification 54797 which was provided to NRG on July 22, 2020 (Reference 3).
Event 54777 As discussed in the initial event report, GNF-A reported a planned fire system impairment to the New Hanover County (NHC) Deputy Fire Marshall. Consistent with 10 CFR 70, Appendix A(c), a concurrent report was provided to NRG and is included as Attachment 1 to this letter.
Additional information is provided as follows:
Event Details and Safety Significance At 1015 (EDT) on July 13, 2020, the New Hanover County Deputy Fire Marshall was notified per State code requirements that the fire suppression system for various Fuel Manufacturing Operation Shop Areas was taken offline for planned maintenance to conduct a NFPA required 5-year inspection. Compensatory measures were enacted and communicated to the Deputy Fire Marshall. There was no degradation of an item relied on for safety (IROFS) or failure to meet performance requirements.
USNRC M200127 September 10, 2020 Page2 Immediate Corrective Actions Taken The NHC Deputy Fire Marshall was notified at 1015 EDT on July 13, 2020 per State code requirements. Because the NHC Deputy Fire Marshall was notified, a concurrent notification to the NRC Operations Center was made pursuant to 10 CFR 70, Appendix A(c).
Probable Cause of Event The activities included routine maintenance and inspections and there was no event.
Short Term Corrective Action
- 1) The system was restored to service after the required tests were completed. The NHC Deputy Fire Marshal was notified of the return to service.
Longer Term Corrective Action None Event 54797 As discussed in the initial event report, GNF-A reported a water leak and. subsequent fire system impairment to the New Hanover County (NHC) Deputy Fire Marshall. Consistent with 1 O CFR 70, Appendix A(c), a concurrent report was provided to NRC and is included as to this letter.
Additional information is provided as follows:
Event Details and Safety Significance At 1030 (EDT) on July 21, 2020, the New Hanover County Deputy Fire Marshall was notified per State code requirements that the fire suppression system for the Fuel Manufacturing Operation Sandblast Building was impaired. A water leak had been discovered in an underground pipe.
This leaking pipe was believed to feed water to the sprinkler system. The building is normally unoccupied, and no other buildings were affected. Compensatory measures were enacted and communicated to the Deputy Fire Marshall. There was no degradation of an item relied on for safety (IROFS) or failure to meet performance requirements.
Immediate Corrective Actions Taken The fire riser and sprinklers were taken offline and compensatory measures enacted. Because the NHC Deputy Fire Marshall was notified, a concurrent notification to the NRC Operations Center was made pursuant to 10 CFR 70, Appendix A(c).
USNRC M200127 September 1 0, 2020 Page3 Probable Cause of Event While the leaking pipe was initially believed to be a fire system supply line, it was determined that a non-fire system water line was the source of the leak.
Short Term Corrective Action
- 1) The system was restored to service and the NHC Deputy Fire Marshal notified of the return to service. The leaking non-fire system water line was repaired.
Longer Term Corrective Action None If you have any questions regarding this matter, please contact me at (910) 819-5950.
Sincerely, A
Scott Murray, Facility licen Attachments: 1) Event 54777 Notification Description
- 2) Event 54797 Notification Description cc:
NRC Region II Administrator, Atlanta, GA M. Ruffin, NRC All Atlanta, GA L. Pitts, NRC All Atlanta, GA T. Naquin, NRC NMSS, Washington, DC SPM 20-030
USNRC M200127 September 10, 2020 Page4 Event 54777 Notification Description At 1015 (EDT) on July 13th, 2020, the New Hanover County Deputy Fire Marshall was notified per State code requirements that the fire suppression system for various Fuel Manufacturing Operation Shop Areas was taken offline for planned maintenance to conduct a NFPA required 5-year inspection. These inspections will be ongoing throughout the week. Compensatory measures were enacted and communicated to the Deputy Fire Marshall. Because the New Hanover County Deputy Fire Marshall was notified, a concurrent notification to the NRC Operations Center is being made per 1 O CFR 70, Appendix A(c).
Phillip Ollis, Facility Licensing 1013 7/14/2020
USNRC M200127 September 10, 2020 Page5 Event 54797 Notification Description At 1030 (EDT) on July 21st, 2020, the New Hanover County Deputy Fire Marshall was notified per State code requirements that the fire suppression system for the Fuel Manufacturing Operation Sandblast Building was impaired. An underground pipe that feeds water to the sprinkler system had developed a leak. The building is normally unoccupied, and no other buildings are affected. Compensatory measures were enacted and communicated to the Deputy Fire Marshall. Because the New Hanover County Deputy Fire Marshall was notified, a concurrent notification to the NRC Operations Center is being made per 10 CFA 70, Appendix A(c).
Phillip Ollis, Facility Licensing 1007 7/22/2020