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Issue date | Title | Topic | |
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ML20154N533 | 23 September 1988 | Special 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 Days | Fire Barrier |
ML20155C270 | 3 October 1988 | Special Rept on Untimely Submittal of 19 Lers.Training on Safety Responsibilities to Begin Immediately Following Development of Training Plan | Safe Shutdown Time of Discovery Shutdown Margin High Radiation Area Grab sample Fire Barrier Missed surveillance |
ML20197A545 | 2 May 1986 | Ro: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 | |
ML20202D338 | 30 June 1986 | Special 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 Closed | Fire Barrier |
ML20203L144 | 12 August 1986 | Special 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 Verified | Fire Barrier Hourly Fire Watch |
ML20205E299 | 19 October 1988 | Followup Ro:Maint Completed & Fire Barrier Separating Fire Areas 19 & 20 Restored to Operable Status on 880919 | Fire Barrier |
ML20205J876 | 10 February 1986 | Ro: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 | |
ML20205Q536 | 31 October 1988 | Followup 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 | |
ML20205T717 | 2 April 1987 | Supplemental 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 Outage | Fire Barrier Fire Watch |
ML20206C801 | 9 November 1988 | Special 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 | |
ML20207C788 | 4 August 1988 | Special 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 880901 | Fire Barrier |
ML20207L802 | 10 October 1988 | Special 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 on | Post Accident Monitoring |
ML20207N123 | 31 December 1986 | Followup 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 Incident | Fire Barrier |
ML20207N365 | 7 January 1987 | Supplemental 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 Related | Fire Barrier Fire Watch |
ML20209J273 | 22 April 1987 | Special 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 | |
ML20211R066 | 5 December 1986 | Special 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 Problems | Fire Barrier |
ML20212P467 | 21 August 1986 | Followup 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 860808 | Fire Barrier |
ML20214H328 | 13 May 1987 | Special 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 |
ML20214K373 | 1 August 1986 | Ro: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 Operable | Fire Barrier |
ML20214R104 | 17 September 1986 | Special 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 861001 | Fire Barrier Continuous fire watch Fire Watch Hourly Fire Watch |
ML20214T441 | 5 June 1987 | Special 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 Issued | Fire Barrier |
ML20215E915 | 15 June 1987 | Special 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 Posted | Fire Barrier |
ML20215M925 | 22 October 1986 | Ro: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 870301 | Fire Barrier |
ML20216G026 | 22 June 1987 | Special 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 870617 | Fire Barrier Fire Watch |
ML20235J825 | 30 September 1987 | Followup 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 870901 | Fire Barrier |
ML20235R235 | 23 February 1989 | Special 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 | |
ML20236N666 | 7 August 1987 | Special 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 | |
ML20236W828 | 30 November 1987 | Special 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 | |
ML20245A114 | 15 June 1989 | Special 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 Period | Fire Barrier |
ML20245D890 | 3 October 1988 | Special Rept:On 880826,fire-rated Penetration Seals Declared Inoperable.Fire Detector Operability Verified & Hourly Firewatch Patrol Initiated on One Side of Each Affected Penetration | Fire Barrier |
ML20245L327 | 1 May 1989 | Special 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 & Maintained | Fire Barrier |
ML20246L408 | 17 March 1989 | Followup Special Rept:On 890227,detector RE-063H & Preamplifier RM-063H Found Defective.Replacement Detector Purchased & RM-063H Will Be Fully Operational by 890515 | |
ML20246M124 | 10 July 1989 | Special 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 Filed | Fire Barrier |
ML20246N054 | 31 August 1989 | Special 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 | |
ML20247F979 | 19 May 1989 | Special 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 Planned | Post Accident Monitoring |
ML20247K274 | 23 May 1989 | Special 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 Controller | Post Accident Monitoring |
ML20247L665 | 19 September 1989 | Special 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 881123 | Fire Barrier |