Information Notice 1992-55, Current Fire Endurance Test Results for Thermo-Lag Barrier Material
Information Notice 1992-82, Results of Thermo-Lag 330-1 Combustibility Testing
Information Notice 1994-22, Fire Endurance & Ampacity Derating Test Results for 3-Hour Fire-Rated Thermo-Lag 330-1 Fire Barriers
Information Notice 1994-86, Legal Actions Against Thermal Science, Inc., Manufacturer of Thermo-Lag
PLA-3933, Responds to NRC Re Violations Noted in Insp Repts 50-287/92-23 & 50-388/92-23.C/As:surveillance Procedures Will Be Revised to Address Types of Fire Barrier Matl to Be Inspected to Provide Acceptance Criteria for Fire Barrier
RBG-46570, Response to Generic Letter 2006-03, Potentially Nonconforming Hemyc and MT Fire Barrier Configurations.
NRC Generic Letter 92-08, Thermo-Lag 330-1 Fire Barriers
ST-HL-AE-4695, Forwards Response to Request for Addl Info Re GL 92-08, Thermo-Lag 330-1 Fire Barriers,
NRC-92-0091, Responds to NRC Bulletin 92-001, Failure of Thermo-Lag 330 Fire Barrier Sys to Maintain Cabling in Wide Cable Trays & Small Conduits Free from Fire Damage. Eleven Areas in Plant Identified Containing Thermo-Lag Matl
NRC-92-0116, Responds to Suppl 1 to NRC Bulletin 92-001, Failure of Thermo-Lag 330 Fire Barrier Sys to Perform Specified Fire Endurance Function. Eleven Areas in Plant Identified W/Subj Matl.Roving Hourly Fire Watch Patrol Established
HL-5282, Forwards Response to NRC Request to Provide Info Re Adequacy & Availability of Design Bases Info for Ei Hatch Nuclear Plant
HL-5637, Forwards Commitment Form Similar to Form Attached to NRC .Commitment Form Properly Reflects Util Previous Commitments to Implement Thermo-Lag 330-1 Fire Barrier Corrective Actions at Plant
B14305, Forwards Request for Exemption from 10CFR50.12,Section III.G.2 of App R for Barrier Protecting Conduit Encl Cable Passing Approx 25 Ft Above Fire Loading of Less than 1 Minute.Schematic of RHR Pump Cubicle Encl
B14307, Suppls 920727 & 1001 Responses to Suppl 1 to NRC Bulletin 92-001, Failure of Thermo-Lag 330 Fire Barrier Sys to Perform Specified Fire Endurance Test. Continuous Fire Watches in Place in All Areas Per Bulletin Requirements
3F1092-04, Responds to NRC Bulletin 92-001,Supplement 1, Failure of Thermo-Lag 330 Fire Barrier Sys to Perform Its Specified Endurance Function. Thermo-Lag 330 Not Used as Fire Barrier Matl on Walls or Ceilings at Plant
HL-2921, Forwards Response to Suppl 1 to NRC Bulletin 92-001, Failure of Thermo-Lag 330 Fire Barrier Sys to Perform Specified Fire Endurance Function. Affected Fire Zones Have Installed Operable Fire Detection Sys
RC-96-0216, Forwards Follow Up to RAI Re GL 92-08 Per 10CFR50.54(f) 931222.Detail Description of Two Separate Exemption Requests to Requirements of Section III.G.2 of App R to 10CFR50 Encl
BSEP-92-0025, Special Rept 2-SR-92-008:on 920909,crack Found in Thermo-Lag of Penetration Seal in Control Bldg Cable Spread Room During Review of NRC Bulletin 92-001.Seal Not Restored within 7 Days.Fire Watches Stationed in Affected Areas
B14199, Responds to NRC Bulletin 92-001, Failure of Thermo-Lag 330 Fire Barrier Sys to Maintain Cabling in Wide Cable Trays & Small Conduits Free from Fire Damage. Containment Temp Monitored for Sudden Temp Increases
NG-92-4408, Responds to NRC Bulletin 92-001,Supplement 1, Failure of Thermo-Lag 330 Fire Barrier Sys to Perform Specified Fire Endurance Function. Compensatory Measures Consist of Establishing Hourly Fire Watches
ELV-04019, Responds to NRC Bulletin 92-001,Suppl 1, Failure of Thermo-Lag 330 Fire Barrier Sys to Perform Specified Fire Endurance Functions. One-hour Fire Watches Established for Seven Areas Identified on 920918
0CAN099210, Responds to Suppl 1 to NRC Bulletin 92-001, Failure of Thermo-Lag 330 Fire Barrier Sys to Perform Specified Fire Endurance Function. Until Barriers Qualified or Replaced, 1 H Roving Fire Watch Will Remain in Effect
U-602047, Responds to NRC Bulletin 92-001,Supplement 1, Failure of Thermo-Lag 330 Fire Barrier Sys to Perform Specified Fire Endurance Function. List of Areas Where Thermo-Lag 330 Fire Barrier Sys Installed Encl
BVY-92-115, Responds to NRC Bulletin 92-001 Supplement 1 Failure of Thermo-Lag Fire Barrier Sys to Maintain Cabling in Wide Cable Trays & Small Conduits Free from Fire Damage. Temporary Fire Detection Installed
RBG-37-509, Provides Response to NRC Bulletin 92-001,Supplement 1 Failure of Thermo-Lag 330 Fire Barrier Sys to Perform Specified Fire Endurance Function. All Barriers Declared Inoperable on 891026 Following Unsuccessful Testing
0CAN079203, Responds to NRC Bulletin 92-001, Failure of Thermo-Lag 330 Fire Barrier Sys to Maintain Cabling in Wide Cable Trays & Small Conduits Free from Fire Damage. Subj Fire Barrier Matl Not Installed in Unit 1
HL-2322, Forwards Response to NRC Bulletin 92-001, Failure of Thermo-Lag 330 Fire Barrier Sys to Maintain Cabling in Wide Cable Trays & Small Conduits Free from Fire Damage. Fire Watch for Drywell Access Room Will Be Performed
BECO-92-075, Responds to NRC Bulletin 92-001, Failure of Thermo-Lag 330 Fire Barrier Sys to Maintain Cabling in Wide Cable Trays & Small Conduits Free from Fire Damage. Thermo-Lag Matl Not Installed at Facility
ELV-03871, Provides Info Describing Deviations from Approved Fire Protection Program Resulting from Plant Review in Response to NRC Bulletin 92-001,per 920626 Conversation W/Nrc. Transient Combustibles Limited Inside Containment
B14220, Forwards Revised Matrix from 920727 Response to NRC Bulletin 92-001,reflecting Location of TSI Thermo-Lag Matl,Size/ Configuration,Compensatory Measures Taken & Measures Taken to Ensure Fire Barrier Ratings
B14211, Requests Temporary Waiver of Compliance from TS 3.7.13 Re Fire Rated Assemblies to Allow Facility to Operate While Concerns of NRC Bulletin 92-001 on Failure of Thermo-Lag 330 Fire Barrier Sys Addressed Inside Containment
NG-92-3299, Advises That Util Intends to Install Temporary Fire Detectors in Two Areas of Facility to Provide Alternate Means of Compliance W/Nrc Bulletin 92-001 Re Failure of Thermo-Lag 330 Fire Barrier Sys
3F0792-12, Responds to NRC Bulletin 92-001, Failure of Thermo-Lag 330 Fire Barrier Sys to Maintain Cabling in Wide Cable Trays & Small Conduits Free from Fire Damage. List of Thermo-lag 330 Fire Barrier Matl Providing Safe Shutdown Encl
ST-HL-AE-4156, Forwards Response to NRC Bulletin 92-001 Re Thermo-Lag 330 Fire Barrier matl.Thermo-Lag 330 Fire Barrier Sys Used to Protect Safe Shutdown Circuits at Both Facilities.Hourly Fire Watches Established for Each Affected Fire Area
U-602013, Responds to NRC Bulletin 92-001, Failure of Thermo-Lag 330 Fire Barrier Sys to Maintain Cabling in Wide Cable Trays & Small Conduits Free from Fire Damage. Eleven Areas of Plant Utilize Subj Fire Barrier Matl
RBG-37271, Responds to NRC Bulletin 92-001, Failure of Thermo-Lag 330 Fire Barrier Sys to Maintain Cabling in Wide Cable Trays & Small Conduits Free from Fire Damage. Util Uses Both 1 H & 3 H pre-formed Thermo-Lag 330 Panels in 14 Fire Areas
BVY-92-092, Responds to NRC Bulletin 92-001 Failure of Thermo-Lag 330 Fire Sys to Maintain Cabling in Wide Cable Trays & Small Conduits Free from Fire Damage. Continuous Fire Watch for 3/4-inch Conduit Established
ELV-03897, Forwards Response to NRC Bulletin 92-001, Failure of Thermo-Lag 330 Fire Barrier Sys to Maintain Cabling in Wide Cable Trays & Small Conduits Free from Fire Damage. Hourly Monitoring of Air Temp Inside Containment Terminated
NG-95-2971, 1995 Cyclic Rept of Facility Changes,Tests & Experiments & Fire Plan Changes, Covering Period from 940101 - 951001.W/
ST-HL-AE-4586, Informs of Licensee Being in Final Stages of Completing Business Plan in Response to Overall Concerns Raised by NRC During Diagnostic Evaluation
RC-95-0076, Forwards Response to Follow Up Request for Addl Info Re GL 92-08
HL-4741, Responds to RAI Re GL 92-08, Thermo-Lag Fire Barriers. Gpc Will Complete Required Evaluations & Mods to Resolve Thermo- Lag Fire Barrier Issue for Plant by Startup of Unit 2 from Fall 1998 Refueling Outage
3F0195-03, Forwards Response to follow-up to RAI on GL 92-08, Thermo- Lag Fire Barriers, Per 10CFR50.54(f)
HL-4727, Special Rept:On 941007,discovered That Required Hourly Fire Watch Patrol Initiated for Fire Area 0040 on 920629 Inappropriately Terminated Due to Personnel Error.Hourly Fire Watch Patrol for Affected Area re-established
JSP-062-94, Responds to 931227 RAI Re GL-92-08, Thermo-Lag 330-1 Fire Barriers
2CAN029401, Responds to RAI Re GL 92-08, Thermo-Lag 330-1 Fire Barriers
HL-4497, Responds to NRC 931221 RAI Re GL 92-08, Thermo-Lag 330-1 Fire Barriers & NRC Bulletin 92-001, Failure of Thermo-Lag 330 Fire Barrier Sys to Maintain Cabling in Wide Trays & Small Conduits Free from Fire Damage
B14649, Discusses Changes to Reliance on Thermo-Lag,per 921001 Response to NRC Bulletin 92-001,Suppl 1 & 930416 Response to Generic Ltr 92-08
PY-CEI-NRR-1555, Responds to NRC Bulletin 92-001,Suppl 1, Failure of Thermo-Lag 330 Fire Barrier Sys to Perform Specified Fire Endurance Function. Hourly Fire Watches Established & Operable Fire Detection Sys Installed for Affected Areas
TXX-9233, Provides Requested Actions Specified in NRC Bulletin 92-001, Failure of Thermo-Lag 330 Fire Barrier Sys to Maintain Cabling in Wide Cable Trays & Small Conduits Free from Fire Damage
PY-CEI-NRR-1526, Responds to NRC Bulletin 92-001, Failure of Thermo-Lag 330 Fire Barrier Sys to Maintain Cabling in Wide Cable Trays & Small Conduits Free from Fire Damage. Actions to Restore Fire Barrier Operability Coordinated by NUMARC
TXX-9419, Informs That Corrective Actions for GL 92-08 & NRC Bulletin 92-001 Completed for Unit 1.Fire Barriers Being Controlled, Per FSAR & CPSES Fire Protection Rept
05000289/LER-1998-006-01, :on 980617,Thermo-Lag Fire Barrier Was Found Installed Outside Approved Joint Design Arrangement,Was Identified.Caused by Personnel Error.Hourly Fire Watch Initiated
05000289/LER-1998-003, :on 980218,discovered Installation of Thermo- Lag Fire Barrier on Incorrect Conduit Duct.Caused by Personnel Error.Revised Operating Procedure 1104-45 & Installed One Hour Fire Rated Barrier on Subject Cable Duct
05000302/LER-1996-001, :on 960110,personnel Error Results in Operation Outside 10CFR50,App R Design Basis.Brought Affected Circuits Back Into Compliance W/App R & Completed Field Validation of Selected App R Drawings
05000277/LER-1993-002, :on 930105,discovered That Continuous Firewatch Not in Place,In Violation of TS 3.14.D.2.Caused by Personnel Error.Procedure Used to Control & Track Impairements Will Be Revised
05000352/LER-1992-012, :on 920611,determined That Various Thermo-Lag fire-rated Barriers Inoperable Since Initial Installation. Caused by Design Defects.Fire Watches Posted.Addl Response Will Be Sent Per NRC Bulletin 92-001
05000331/LER-1992-017, :on 921026,discovered That Two Hourly Fire Watches in RHR Valve Room Missed During QA Surveillance. Caused by Contract Security Personnel Error.Personnel Instructed Re Use of Fire Watch Checklist
05000213/LER-1992-018, :on 920630,containment Cable Vault Fire Wrap Sys Protecting App R-related Low Voltage Cabling Conservatively Declared Inoperable,Per NRC Bulletin 92-001. Hourly Firewatch Patrol Established
05000327/LER-1992-020, :on 921119,discovered That Fire Watch Patrol Was Not Performed within Timeframe Required.Caused by Personnel Splitting One Fire Watch Route.Addl Fire Protection Related Records Were Reviewed
RC-96-0236, Forwards Request for Deviation to Requirements of Section III.G.2,App R to 10CFR50 Re GL 92-08
05000263/LER-1992-008, :on 920624,1-inch Conduit Fire Barrier Declared Inoperable & on 920831,4-inch Conduit Fire Barrier Declared Inoperable Based on Review of NRC Bulletin 92-001 & Suppl 1. Continuous Fire Watch Established
05000277/LER-1992-011, :on 920624,discovered Unqualified Fire Barriers During NRC Bulletin 92-001 Review.Caused by Design Defects During Initial Installation of Thermo-Lag Barriers.Fire Watches Established in HPSW Pump Structure
05000277/LER-1992-023, :on 921028,hourly Firewatches for Emergency Switchgear & Motor Generator Rooms Not Performed Per TS Due to Personnel Error.Training Will Be Conducted Re Aspects of Firewatch Insps
05000277/LER-1992-018, :on 920915,security Personnel Discovered That TS Required 1 H Firewatch Performed in Excess of 1 H Interval.Caused by Personnel Error.Security Supervisor Counselled
05000352/LER-1996-012, :on 921103,identified Improper Fuse Sizing. Caused by Personnel Error.Approved Design Change Re Proper Fuse Coordination & Reviewed Modifications Associated W/Fuse Ratings
05000277/LER-1992-011-01, :on 920625,review of NRC Bulletin 92-001 Re Failure of Thermo-Lag 330 Fire Barrier Sys Completed & Fire Barriers Delineated in Bulletin Declared Inoperable.Caused by Design Deficiencies.Fire Watch Established
05000298/LER-1996-002, :on 960322,unassured Past Operability of Core Spray Subsystem a Due to Susceptibility of Injection Valve to Pressure Locking.Caused by Original Design Error.Gate Valve Reactor Side of Disc Modified
05000352/LER-1992-014, :on 901116,continuous Fire Watch Not Implemented Upon Discovery of Inoperable Thermo-Lag Fire Rated Barriers.Caused by Personnel Error.Fire Watch Posted, on 920626,as Result of NRC Bulletin 92-001
05000282/LER-1992-008, :on 920624,identified Six Inoperable Thermo-Lag 330 Fire Barriers on Cable Trays & Conduits.Appropriate Actions to Restore Fire Barriers Operability Being Developed,Per Scope in NRC Bulletin 92-001
05000416/LER-1994-008-02, :on 940727,concluded That One Hour Notification Made in Accordance w/10CFR50.72(b)(1)(ii)(B) Re Inadequate Thermo-Lag Installations Not Required.Hourly Fire Watches Initiated in Mid 1992 Continues to Date
TXX-9325, Suppls 930119 & 0415 Responses to GL 93-08 Re Confirmatory Testing of Thermo-Lag Fire Barriers.Cable Tray Protected W/ 1/2-inch (Nominal) Thick Thermo-Lag Board Sections W/Ribs
3F0293-08, Discusses Status of Major Regulatory Issues,Including TS improvement,security,seismicity-related Issues,Team Insps, Cable Separation,Procurement,Severe Accident Mgt,Reactor Vessel Integrity & Steam Generator Integrity
BVY-93-053, Informs That Util Completed Mods to Eliminate All Reliance on Thermo-Lag 330 on 930518,per Commitment in 930416 Response to GL 92-08 Re Thermo-Lag Fire Barriers
3F0493-06, Forwards Info Requested in GL 92-08, Thermo-Lag 330-1 Fire Barriers, Including Confirmation of Use of Thermo-Lag Matl at Facility.Compensatory Measures,Consistent W/Ts, Established Per Recommendations in NRC Bulletin 92-001
ELV-05296, Forwards Response to GL 92-08, Thermo-Lag 330-1 Fire Barriers
BVY-93-042, Addresses Concerns Delineated in GL 92-08 Re Thermo-Lag 330 Fire Barriers,Per NRC Bulletin 92-001, Failure of Thermo-Lag 330 Fire Barrier to Perform Specified Fire.... Util Will Continue to Monitor NUMARCs Efforts on Subj
0CAN049302, Forwards Response to GL 92-08, Thermo-Lag 330-1 Fire Barriers. Compensatory Actions,Described in Response to NRC Bulletin 92-001,implemented at Unit 2.No Thermo-Lag 330-1 Matl Utilized in Unit 1
B14438, Discusses cost-effective Resolution of Selected Operational & Safety Issues.Issues Include,Mgt of SG Tube Flaws, Combustible Gas Control,Hardened Vent Design & Implementation Schedule & Thermo-Lag Installations
JSP-159-93, Forwards Response to GL 92-08 Re Thermo-Lag 330-1 Fire Barriers.Compensatory Measures,Consisting of Hourly Fire Watch Patrols for All Thermo-Lag 300-1 Installations Established,Per NRC Bulletin 92-001 & Suppl 1 to Bulletin
05000298/LER-1993-002, :on 930202,NRC Inspector Discovered That Fire Watchman Unaware That Thermo-Lag Fire in Assigned Area Declared Inoperable on 920625,during Interview.Personnel re-familiarized w/Thermo-Lag Areas of Concern
LIC-93-0103, Responds to GL 92-08 Requesting Addl Info to Verify That Thermo-Lag 330-1 Fire Barriers Comply W/Nrc Requirements.No Reporting Requirements of GL 92-08 Applicable to Plant
BECO-93-022, Provides Response to GL 92-08 Re Thermo-Lag 330-1 Fire Barriers.No Further Responses Are Necessary for Items 2,3 & 4
RC-93-0048, Forwards Corrected Table B, Components Supplied Through Cable Tray 3088, to Correct Discrepancy Noted in 920720 & 920915 Responses to NRC Bulletin 92-001 & Suppl 1 to NRC Bulletin 92-001,respectively
ST-HL-AE-4389, Forwards Response to GL 92-08, Thermo-Lag 330-1 Fire Barriers. Thermo-Lag Being Treated as Inoperable & Compensatory Measures Established,Per NRC Bulletin 92-001 & Suppl 1 to Bulletin
RBG-38343, Forwards Response to GL 92-08, Thermo-Lag 330-1 Fire Barriers & Suppl 1 to NRC Bulletin 92-001, Failure of Thermo-Lag 330 Fire Barrier Sys to Maintain Cabling in Wide Cable Trays Free from Fire Damage
PY-CEI-NRR-1638, Forwards Response to GL 92-08, Thermo-Lag 330-1 Fire Barriers. Util 930724 & 0930 Responses to NRC Bulletin 92-001 Outlined Compensatory Measures Initiated in Late 1991 for All Plant Areas Protected by Subj Fire Barrier Sys
05000296/LER-1992-005-03, :on 921104,compensatory Action Fire Watch for Inoperable Fire Barrier Found in Compromising Position Due to Personnel Inattentiveness.Personnel Corrective Action Administered to Individual Involved
05000296/LER-1992-004-04, :on 921104,chemical Release in Reactor Bldg Forced Evacuation of Compensatory Action Fire Watches. Caused by Unexpected Exothermic Chemical Reaction.Mfg (Master Builders,Inc) Conducted Training
05000400/LER-1997-006, :on 970318,breach Was Identified in Thermo-Lag Fire Barrier Wall Due to Inadequate Initial Design,Poor Construction Methods & Incomplete as-built Design.Visual Insp of Thermo-Lag Barrier Walls Performed
L-94-306, Responds to RAI Re GL 92-08, Thermo-Lag 330-1 Fire Barriers Issued by NRC on 931220,to Help Insure Timely Resolution of Fire Barrier at Facility Units 2 & 3
L-96-236, Informs That Util Will Aggressively Pursue Implementation of Fire Barrier Mods During 1997 Outages & Will Complete Remaining Items During Subsequent Refueling Outages Scheduled for Sept 1988 on Unit 3 & March 1999 on Unit 4
L-96-285, Responds to NRC Ltr Re Violations Noted in Insp Repts 50-250/96-11 & 50-251/96-11.Corrective Actions:Compensatory Measures in Form of Fire Watches for Fire Zone 64 & 143 Will Remain in Effect Until Mods Completed
L-92-218, Forwards Response to NRC Bulletin 92-001, Failure of Thermo-Lag 330 Fire Barrier Sys to Maintain Cabling in Wide Cable Trays & Small Conduits Free from Damage. Thermo-Lag 330 Fire Barrier Sys Not Installed at Facilities
L-92-266, Responds to NRC Bulletin 92-001,suppl 1 Failure of Thermo-Lag 330 Fire Barrier Sys to Perform Specified Fire Endurance Function. All Plant Locations That Have Thermo-Lag 330 Barrier Installations Have Been Identified
L-92-219, Responds to NRC Bulletin 92-001, Thermo-Lag 330 Fire Barrier Sys. Compensatory Measures Implemented in Areas Containing Subj Fire Barrier Matl,Including Roving Fire Watch & Verification of Fire Detector Operability
GO2-96-097, Informs That Schedule for Resolution Has Been Updated to Reflect Recent Changes in Methodology,Available Fire Barrier Matls & Levelization of Available Resources,Per GL 92-08
GO2-92-228, Responds to NRC Bulletin 92-001,Suppl 1, Failure of Thermo- Lag 330 Fire Barrier Sys to Maintain Cabling in Wide Cable Trays & Small Conduits Free from Fire Damage. Util Has Identified Areas Which Use 1 or 3-hour Thermo-Lag 330 Matl
GO2-92-179, Responds to NRC Bulletin 92-001, Failure of Thermo-Lag 330 Fire Barrier Sys to Maintain Cabling in Wide Cable Trays & Small Conduits Free from Fire Damage. Subj Matl Not Utilized at Facility
GO2-93-164, Revises 930413 Response to GL 92-08 Re Thermo-Lag 330-1 Fire Barriers.Schedule for Actions Necessary to Complete Activity Encl
L-92-273, Responds to NRC Bulletin 92-001,Suppl 1, Failure of Thermo- Lag Fire Barrier Sys to Perform Specified Fire Endurance Function. on 920901,fire Areas Affected by Addl Scope of Bulletin Suppl Verified Covered by Compensatory Measures
3F0294-15, Forwards Response to NRC 931021 RAI Re GL 92-08, Thermo-Lag 330-1 Fire Barriers, 10CFR50.54(f)
NG-92-3184, Responds to NRC Bulletin 92-001 Re Ability of Thermo-Lag 330 Fire Barrier Sys to Adequately Protect Electrical Cabling in Certain Sizes of Cable Trays & Conduit.Compensatory Measures for Inoperable Fire Barriers Implemented
05000219/LER-1998-002-01, :on 980227,480 V Switchgear Room Fire Barrier Deficiency Was Noted.Caused by Inadequate Fire Barrier Spec. Two of Seven Fire Zones Where Conduit Fire Barriers Are Installed Were Reviewed,No Deficiencies Found