Semantic search

Jump to navigation Jump to search
 Issue dateTitleTopic
ML20154N53323 September 1988Special Rept Re Fire Door Locksets & Door Mods.Several Fire Doors Replaced During Plant Mods.Hourly Firewatch Patrol Being Maintained in Areas Where Modified Fire Doors Inoperable in Excess of 7 DaysFire Barrier
ML20155C2703 October 1988Special Rept on Untimely Submittal of 19 Lers.Training on Safety Responsibilities to Begin Immediately Following Development of Training PlanSafe Shutdown
Time of Discovery
Shutdown Margin
High Radiation Area
Grab sample
Fire Barrier
Missed surveillance
ML20197A5452 May 1986Ro:On 860501,high Alarm Indications Discovered on Effluent Process Monitors RM054A,RM054B & RM062.Caused by Increased Background Radiation Due to Presence of Noble Gases in Auxiliary Bldg.Ventilation Discharge Sys Shut
ML20202D33830 June 1986Special Rept:On 860525,fire Barrier Between Fire Areas 36A & 36B Rendered Inoperable.Caused by Opening Steel Rollup Doors to Compensate for Failed Switchgear Air Conditioning Unit for Fire Area 36A.Repair Completed on 860609 & Doors ClosedFire Barrier
ML20203L14412 August 1986Special Rept:On 860518,floor Plug Separating Fire Areas 34A & 34B Removed for Mod MR-FC-81-92.Continuous Firewatch Established for Inoperable Barrier,Per 860801 Special Rept. Hourly Watch Started After Fire Detector VerifiedFire Barrier
Hourly Fire Watch
ML20205E29919 October 1988Followup Ro:Maint Completed & Fire Barrier Separating Fire Areas 19 & 20 Restored to Operable Status on 880919Fire Barrier
ML20205J87610 February 1986Ro:On 860117,malfunctioning Valve Delayed Operability Check of Diesel Fire Pump,Following Removal from Svc to Facilitate Work on Intake Cell C Rotating Screens.Pump Inoperability Exceeded 7-day Tech Spec Limit
ML20205Q53631 October 1988Followup Special Rept on Inoperability of Fire Doors.Maint & Replacements Associated w/851030 Special Rept Completed.Util Initiated Replacement Program for Firedoors.Compensatory Measures in Effect for Doors Being Replaced
ML20205T7172 April 1987Supplemental Special Rept Re Inoperability of Certain Fire Barriers in Piping Trenches.Barriers Will Be Restored by 870601.Work on Piping Leak Finished Just Prior to 1987 Refueling & Maint OutageFire Barrier
Fire Watch
ML20206C8019 November 1988Special Rept:Consisting of Followup to 881010 Rept Re Inoperability of Radiation Monitor RM-064.Investigation Confirmed Defective Preamplifier at Detector.Util Working W/Vendor to Resolve Problem
ML20207C7884 August 1988Special Rept:On 880628-0708,fire Barriers Found Degraded in Numerous Areas During Routine Surveillance.Hourly Fire Patrol Established.Caused by Const & Remodeling.Listed Maint Orders Issued.Restoration Scheduled for 880901Fire Barrier
ML20207L80210 October 1988Special Rept:On 880923,main Steam Line post-accident Radiation Monitor RM-064 Turned Off Due to Apparent Power Supply Failure.Caused by Inherent Characteristics of Electronic Ratemeter.Monitor Turned Back onPost Accident Monitoring
ML20207N12331 December 1986Followup Special Rept Re Inoperable Fire Barrier.Mod Work Completed on 861211 & Fire Barrier Rendered Operable.Addl Administrative Controls Described in Response to Violation 86-21-02 Implemented to Reduce Recurrence of IncidentFire Barrier
ML20207N3657 January 1987Supplemental Special Rept Updating Situation Re Inoperative Fire Barriers Noted in Special Rept Dtd 860917.Fire Barriers Anticipated to Be Restored by 870301.Fire Watch Will Be Maintained Until Fire Barriers Restored.Part 21 RelatedFire Barrier
Fire Watch
ML20209J27322 April 1987Special Rept 87-678:on 870326,electric Fire Pump FP-1A Removed from Svc to Facilitate Work on 4,160-volt Bus 1A1 as Part of Refueling Outage Maint.Bus Returned to Svc on 870405,exceeding 7-day Tech Spec 2.19 Limit
ML20211R0665 December 1986Special Rept:On 861031,fire Barrier Between Control Room & Cable Spreading Room in Panel AI-33C Rendered Inoperable. Firewatch Established.Barrier Remained Inoperable in Excess of 7 Days Due to Procurement ProblemsFire Barrier
ML20212P46721 August 1986Followup to 851223 Special Rept:On 851117,pyrocrete Fire Barrier,Separating Fire Areas 36A & 36B,found Damaged Due to Work on Bus Ducts.Repair Work Completed & Fire Barriers Declared Operable on 860808Fire Barrier
ML20214H32813 May 1987Special Rept:On 870406,discovered That Door 1011-1 Did Not Properly Fit New Frame After Installation of New Lockset & High Security Lock Cylinder.Door Returned for Repair & Reinstalled on 870427,exceeding Tech Spec 2.19(7)Fire Barrier
ML20214K3731 August 1986Ro:On 860518,floor Plug Separating Fire Areas 34A & 34B Removed for Installation of Mod MR-FC-81-92.Fire Barrier Remains Inoperable Until Mod Work Complete.Continuous Firewatch Posted Until Barrier OperableFire Barrier
ML20214R10417 September 1986Special Rept:On 860722 & 0827,during Insp of Entrenched Waste Disposal Piping,Discovered Previously Unknown Fire Barrier Penetration Seals to Be Nonfunctional.Caused by Oversight.Seals Will Be Restored by 861001Fire Barrier
Continuous fire watch
Fire Watch
Hourly Fire Watch
ML20214T4415 June 1987Special Rept:On 870501,util Informed by Ruskin Mfg That at Least Two Fire Dampers Installed in HVAC Duct Penetrations of Fire Barriers Improperly Installed & Therefore Ul Rating Was Void.Firewatch Established.Mod Request IssuedFire Barrier
ML20215E91515 June 1987Special Rept:On 870324,fire Barrier Penetration Seal 27-E-25 in Fire Barrier Separating Fire Areas 20 & 27 Rendered Inoperable in Excess of 7 Days to Perform Work Under Maint Order 871282.Hourly Firewatch PostedFire Barrier
ML20215M92522 October 1986Ro:On 860915,during Performance of ST-FP-10, Halon Sys Surveillance, Previously Unidentified Fire Damper Discovered in Switchgear Room HVAC Sys.Hourly Firewatch in Effect.Fire Damper Will Be Installed in Duct by 870301Fire Barrier
ML20216G02622 June 1987Special Rept:On 870514,during Routine QA Surveillance,Fire Barrier Penetration Seal 81-W-5 Discovered Inoperable, Rendering Fire Barrier Separating Fire Areas 29 & 43 Inoperable.Penetration Seal Repaired on 870617Fire Barrier
Fire Watch
ML20235J82530 September 1987Followup Special Rept Re Inoperability of Fire Barriers. Maint Orders 863202 & 863206 Issued to Repair Fire Barrier Penetrations Found to Be Undocumented & Inoperable.Work Completed by Contractor on 870901Fire Barrier
ML20235R23523 February 1989Special Rept:On 890209,main Steam Line Radiation Monitor RM-064 & Wide Range Noble Gas Stack Monitors RM-063L & RM-063H for post-accident Monitoring Inoperable.Cause Not Stated.Planned Method for Monitoring Parameter Verified
ML20236N6667 August 1987Special rept:post-accident Wide Range Noble Gas Stack Monitors RM-063L,M & H Inoperable.Caused by Equipment Failure.Replacement Parts on Order.Monitors RM-063L & M Will Be Returned to Svc on 870720 & H on 870930
ML20236W82830 November 1987Special Rept:Channel B Heated Junction Thermocouple Inoperable in Violation of 871030 Amend 110 to Tech Spec 2.21.Caused by Defective Heater Elements in Probe.Heaters Jumpered.Inoperable Sensors Will Be Replaced
ML20245A11415 June 1989Special Rept:On 890509 & 0517,Tech Spec 2.19(7) Violated. Caused by Fire Door 1036-01 & Fire Barrier Penetration Seal 26-F-164 Being Inoperable for More than 7 Days.Required Compensatory Measures Established & Maintained for PeriodFire Barrier
ML20245D8903 October 1988Special Rept:On 880826,fire-rated Penetration Seals Declared Inoperable.Fire Detector Operability Verified & Hourly Firewatch Patrol Initiated on One Side of Each Affected PenetrationFire Barrier
ML20245L3271 May 1989Special Rept:On 890317 & 30,fire Detection Zone 15 & Fire Barrier Seal 20-E-7 out-of-svc Greater than 14 & 7 Days, Respectively,Exceeding Tech Spec Limits.Required Compensatory Measures Established & MaintainedFire Barrier
ML20246L40817 March 1989Followup Special Rept:On 890227,detector RE-063H & Preamplifier RM-063H Found Defective.Replacement Detector Purchased & RM-063H Will Be Fully Operational by 890515
ML20246M12410 July 1989Special Rept:On 890602 & 0606,discovered Fire Barrier Penetration Seals 53-N-2 & 26-W-1 Inoperable.Caused by Procurement Delays Associated W/Acquisition of Seal Matl Certification & Technical Info.Followup Rept Will Be FiledFire Barrier
ML20246N05431 August 1989Special Rept:Inoperability of wide-range Noble Gas Stack Monitors RM-063L,RM-063M & RM-063H for post-accident Monitoring Discovered.Flow Controllers Repaired & Calibr Begun to Return Monitors to Svc by 891215
ML20247F97919 May 1989Special Rept:On 890421,inoperability of Inadequate Core Cooling Instrumentation Parameters,Due to Software Upgrades, Occurred for More than 7 Days.Addition of Indication of PCV-1849A & B to SPDS PlannedPost Accident Monitoring
ML20247K27423 May 1989Special Rept:On 890508,wide-range Noble Gas Stack Monitors RM-063L,RM-063M & RM-063H Removed from Svc for Calibr of Flow Control Circuit & Not Returned to Svc within 7 Days. Caused by Malfunctioning Dahl ControllerPost Accident Monitoring
ML20247L66519 September 1989Special Rept:Consisting of Restoration Info on Impairment of Fire Detection Zones,Fire Doors & Fire Barrier Penetrations. Compensatory Measures in Effect During Period of Inoperability.Fire Door 1013-6 Restored on 881123Fire Barrier