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    "query_string": "[[Category:REPORTABLE OCCURRENCE REPORT (SEE ALSO AO]] [[Site::Columbia]]",
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	Issue date	Title	Topic
ML17284A675	30 June 1998	Ro:On 980617,flooding of RB Northeast Stairwell with Consequential Flooding of Two ECCS Pump Rooms.Caused by Inadequate Fire Protection Sys Design.Pumped Out Water from Affected Areas to Point Below Berm Areas of Pump Rooms
ML17285A293	16 February 1989	Special Rept:On 890203,plant Personnel Unable to Obtain Sample from PASS Due to Lack of Compression in Vacuum Pump. Caused by Broken Pump Shaft.Replacement Parts Currently on Order & Pump Will Be Repaired as Soon as Possible
ML17285A351	22 March 1989	Special Rept:On 890306,post-accident Sampling Primary Coolant Radiation Monitor Inoperable.Caused by Excess Moisture.Pass Vacuum Pump PSR-P-702 Replaced W/New Pump & Bulkhead Fitting Repaired
ML17285A733	14 September 1989	Special Rept:On 890821,leakage Discovered in post-accident Sampling Sys Containment Valves When in Closed Position. Maint Work Requests Prepared to Repair post-accident Sampling Sys Containment Isolation Valves
ML17285A800	19 October 1989	Special Rept:On 891009,valve PSR-V-104 Isolated to Repair Leaking PASS Sample Valve PSR-V-616,resulting in PASS Being Inoperable.Plan Made to Replace Valve PSR-V-616 to Restore Sys by Jan 1990
ML17286A940	15 July 1991	Special Rept:On 910604,time History Triaxial Acceleration Sensor Found Malfunctioning During Performance of Seismic Sys Maint Activities.Failed Unit Returned Under Warranty to Supplier for Repair.Sys Now Fully Operational	Earthquake
ML17289A600	22 May 1992	Special Rept:On 920420,seismic Triaxial Peak Accelerograph & Space Frame Removed to Allow Refueling of Reactor Core. Accelerometer Will Be Returned to Svc When Space Frame Reattached to Reactor Vessel Prior to Startup	Earthquake
ML17289A916	7 October 1992	Special Rept:On 920905,channel 1 on Main Steam Line D Nozzle in Drywell Did Not Pass Surveillance & Inoperable for More than 30 Days.Caused by Faulty Equipment in Drywell. Maint Work Request Initiated to Repair Failed Channel
ML17289B128	11 January 1993	Update to 921007 Special Rept Re Inoperability of Loose Parts Detection Instrumentation Following Failure of Channel 1 on 921113.On 921128,constant Alarm Received on Channel 8. Maint Work Request Initiated to Repair Failed Channels
ML17290A530	11 June 1993	Special Rept:On 930503,space Frame & Attached Seismic Triaxial Peak Accelorograph (SEIS-TPA-1) Removed to Allow for Refueling of Reactor Core.Instrument Returned to Svc on 930607	Earthquake
ML17290A838	10 December 1993	Special Rept:On 931126,main Control Room Received Stack Monitor Sys Trouble Annunciator & Status Display Indicated High Range Channel Failed self-test.Caused by Component Failure of Stack Monitor Detector.Replacement in Progress
ML17290A887	17 December 1993	Special Rept:On 931116,loose Parts Detection Sys Channel 5 Did Not Pass Daily Channel Surveillance.Exact Cause Not Determined.Need to Provide Addl Notifications Should Other Channels Become Inoperable Not Necessary
ML17291A413	26 September 1994	Special Rept:On 940825,loose Part Detection Sys Channel Number Eight Actuated Associated MCR Alarm & on 940908 Subj Channel Began Alarming Due to Electronic Noise Originating in Drywell.Electronic Module of Channel Removed
ML17291A696	16 March 1995	Special Rept:On 950305,reactor Bldg Effluent Monitoring Sys Was Inoperable for 72 Hrs.Caused by Failure of Stack Monitor Detector.Stack Monitor Returned to Svc on 950314
ML17291A978	18 August 1995	Special Rept:On 950712,loose Part Detection Sys Channel 4 Failed Due to Electrical Noise During Daily Check.Channel 4 Will Remain Inoperable Until Next Forced or Scheduled Outage When Primary Containment de-inerted for Other Work
ML17291B098	8 November 1995	Special Rept:On 951026,RB Effluent Monitoring Sys Inoperable for 72 H Due to Failure of Mid Range Stack Monitor.Cryostat Cooling Assemblies for Mid & High Range Stack Monitors Returned to Vendor for Refurbishment
ML17292A590	8 November 1996	Special Rept:On 961023,intermediate & High Range Stack Monitors PRM-RE-1B & PRM-RE-1C Declared Inoperable.Caused by Monitor Output Had Upward Trend Due to Electronic Noise Interference.Work Request Generated	Offsite Dose Calculation Manual
ML17292A792	9 April 1997	Ro:On 970327,reactor Scrammed.Evaluation Results,Conclusions & Corrective Actions Will Be Shared W/Nrc Prior to Plant Startup from Maint & Refueling Outage
ML17292B228	14 January 1998	Informs of Unexpected Change in Feedwater Temperature & Flow Indication Used to Calculate Plant Heat Balance During Routine Trending of Plant Computer Feedwater Temperatures on 980112.Corrective Actions Reduced Reactor Power to 99%

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