ML20154B824: Difference between revisions

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#REDIRECT [[U-601265, Ro:On 880901,HPCS Initiated & Injected Water Into Reactor for 28 During Maint Surveillance Activities on Reactor Water Level Transmitter.Injection Valve & HPCS Pump Secured. Notification of Unusual Event Lasted Approx 10 Minutes]]
| number = ML20154B824
| issue date = 09/02/1988
| title = Ro:On 880901,HPCS Initiated & Injected Water Into Reactor for 28 During Maint Surveillance Activities on Reactor Water Level Transmitter.Injection Valve & HPCS Pump Secured. Notification of Unusual Event Lasted Approx 10 Minutes
| author name = Holtzscher D
| author affiliation = ILLINOIS POWER CO.
| addressee name =
| addressee affiliation = NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
| docket = 05000461
| license number =
| contact person =
| document report number = U-601265, NUDOCS 8809140153
| document type = REPORTABLE OCCURRENCE REPORT (SEE ALSO AO LER), TEXT-SAFETY REPORT
| page count = 2
}}
 
=Text=
{{#Wiki_filter:, .. -                                                                -.
A U-601265 i      *^
R100-88'09-02)-LP 1A.120 1
              /LLINDIS POWER 00MPANY l                                                            CUNTON PC%ER STATION P.o. BOX 678. CLINToN. ILLINoi$ 61727 Septemb1r 2, 1988 Docket No. 50-461                                                                                  ,
U.S. Nuclear Regulatory Commission                                                                  i Document Control Desk Washington, D.C. 20555 j                 
 
==Subject:==
Clinton Power Station l                              Notification of Unusual Event Dear Sir l
l                        Please find attached a summary report of the "Notification of Unusual Event (NOUE)" which occurred at Clinton Power Station on September 1, 1988. This summary report is submitted pursuant to Appendix 1 of NUREG-0654 (Revision 1) and Clinton Power Station l                  Emergency Plan Implementing Procedure AP-03. If you have any questions concerning this summary report, please contact me at (217) 935-8881, l
extension 3408.
Sincerely yours,
                                                              'h,            e l
D. L. Holtzscher                                              I j                                                        Acting Manager - Licensing and                                ,
1                                                        Safety l                  RLC/kar                                                                                            ;
1 l                  Attachment                                                                                          5 cc: Regional Administrator, Region III, USNRC                                                      l W. Snell, Chief Emergency Preparedness Section NRC Clinton Licensing Project Manager                                                        '
NRC Resident Office                                                                          ;
Illinois Department of Nuclear Safety                                                        l P
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Clinton Power Station                                                              '
Notification of Unusual Event on Thursday, September 1, 1988, at 2250 hours, a Notification of Unusual Event (NOUE) was declared in accordance with Emergency Plan Implementing Procedure EC-02 Emergency Classifications. This procedure requires that a NOUE be declared if the High Pressure Core Spray (HPCS) initiates and injects.
Clinton Power Station was operating at approximately 100% power in Mode 1.
On Thursday, September 1, 1988, at 2240 hours the High Pressure Core Spray (HPCS) system initiated and injected water into the reactor for a period of 28 seconds. The automatic initiation occurred while maintenance surveillance activities were in progress on a reactor water level transmitter.
The State of Illinois was notified of the NOUE at 2300 hours on Thursday, September 1, 1988; the Nuclear Regulatory Commission (NRC)                                            '
Incident Response Center was notified at 2336 hours; and the NRC                                                L Resident Inspector was notified at 2330 hours.                                                                  '
The plant responded by shutting the injection valve and securing the HPCS pump. Plant operating parametors were checked and verified to be                                          .
operating within normal limits.
The Shift Supervisor terminated the NOUE at 2300 hours.              Since the NOUE only lasted approximately ten minutes, the notifications to the State of Illinois at 2300 1.ours and the NRC Incident Respons: Center at 2336 hours included the NOUE termination.                                                                            !
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