Similar Documents at Crane |
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LER-1999-001, Forwards LER 99-001-00,re Short Sections of Piping Were Below Temps Specified in FSAR Section 9.2.1.2.LER Is follow-up to Notification Made Via ENS Telephone to NRC on 990122 |
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10 CFR 50.73(a)(2)(v), Loss of Safety Function |
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| 2891999001R00 - NRC Website |
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p-o' l
l GPU Nucleer, Inc.
(
Route 441 south NUCLEAR Post Office Box 480 Middletown, PA 17057-0480 m H7-944-7s21 February 19, 1999 1920-99-20068 U.S. Nuclear Regulatory Commission Attn: Document Control Desk i
Washington, D.C. 20555 l
1 De~r Sir:
Subject:
Three Mile Island Nuclear Station, Unit 1 (TMI-1)
Operating License No. DPR-50 Docket No. 50-289 LER 99-001-00, Boric Acid Mix Tank Piping Heat Trace Problems Caused by Misplacement of Sensing Elements and Insulation that Caused Short Sections of Piping to be Below the Temperatures Specified in FSAR Section 9.2.1.2 This letter transmits Licensee Event Report (LER) number 99-001-00 concerning a condition which was l
cvaluated and determined to be reportable on January 22,1999 as a condition outside the design bases in
- - accordance with 10 CFR 50.72(b)(1)(ii)(B). This LER is a follow-up to the notification made via the ENS
- - telephone to the NRC Operations Facility on January 22,1999.
- - This LER is being submitted pursuant to 10 CFR 50.73(a)(2)(v), using the required NRC forms (attached).
NRC Form 366 contains an abstract that provides a brief description of the evaluated condition. For a complete i
' description of the evaluated condition refer to the te t of the repo t pro id d o Fn orm 366A.
x r
ve This condition did not adversely affect the health and safety of the public. For additional information regarding this LER contact V. Lewis Killpack, Jr. of the TMI Nuclear Safety & Licensing Section at (717) 948-8196.
Sincerely, D
f' 0
/
i r
James W. Large ch Vice Presiden a Director, TMI VLK cc:
Administrator, Region I - Hubert J. Miller
- - TMI Senior Resident inspector - Wayne L. Schmidt
^p)y TMI-l Senior Project Manager - Timothy G. Colburn File 99050 9903050392 990219 PDR ADOCK 05000289 S
PDR m
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| 05000289/LER-1999-001-01, :on 990122,short Sections of Piping Caused by Misplacement of Sensing Elements & Insulation.Caused by Failure to Adhere to Vendor instruction.Re-installed Heat Trace Sys |
- on 990122,short Sections of Piping Caused by Misplacement of Sensing Elements & Insulation.Caused by Failure to Adhere to Vendor instruction.Re-installed Heat Trace Sys
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function
10 CFR 50.73(a)(2)(vii), Common Cause Inoperability | | 05000289/LER-1999-001, Forwards LER 99-001-00,re Short Sections of Piping Were Below Temps Specified in FSAR Section 9.2.1.2.LER Is follow-up to Notification Made Via ENS Telephone to NRC on 990122 | Forwards LER 99-001-00,re Short Sections of Piping Were Below Temps Specified in FSAR Section 9.2.1.2.LER Is follow-up to Notification Made Via ENS Telephone to NRC on 990122 | 10 CFR 50.73(a)(2)(v), Loss of Safety Function | | 05000289/LER-1999-002, :on 990212,potential Failure of Multiple Containment Monitoring Sys CIV (CM-V-1,2,3 & 4) Was Noted. Caused by Inappropriate Use of Vendor Info.Personnel Will Be Trained on Mgt Expectations.With |
- on 990212,potential Failure of Multiple Containment Monitoring Sys CIV (CM-V-1,2,3 & 4) Was Noted. Caused by Inappropriate Use of Vendor Info.Personnel Will Be Trained on Mgt Expectations.With
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function
10 CFR 50.73(a)(2)(vii), Common Cause Inoperability
10 CFR 50.73(a)(2)(iv), System Actuation
10 CFR 50.73(a)(2)(i)
10 CFR 50.73(a)(2)(iii)
10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition
10 CFR 50.73(a)(2)(viii)
10 CFR 50.73(a)(2)
10 CFR 50.73(b)(2)(ii) | | 05000289/LER-1999-003-01, :on 990310,discovered Failure of Manual Balancing Damper in Supply Duct of Control Bldg Evs.Caused by Failure to Adequately Review Risk & Consequences of Change.Failed Damper Was Clamped Open |
- on 990310,discovered Failure of Manual Balancing Damper in Supply Duct of Control Bldg Evs.Caused by Failure to Adequately Review Risk & Consequences of Change.Failed Damper Was Clamped Open
| 10 CFR 50.73(b)(2)(ii) | | 05000289/LER-1999-003, Forwards LER 99-003-00, Discovery of Condition Outside UFSAR Design Basis for CR Habitability, Which Was Determined Reportable on 990310.Rept Is Being Submitted Four Weeks Later than Required,Per Discussion with NRC | Forwards LER 99-003-00, Discovery of Condition Outside UFSAR Design Basis for CR Habitability, Which Was Determined Reportable on 990310.Rept Is Being Submitted Four Weeks Later than Required,Per Discussion with NRC | | | 05000289/LER-1999-004, :on 990510,EFW Pump Was Inoperable Longer than Allowed by TSs Due to Lack of Lubrication.Caused by Loose Set Screw Resulting in Bearing Failure.Pump Was Repaired & Returned to Service on 990512 |
- on 990510,EFW Pump Was Inoperable Longer than Allowed by TSs Due to Lack of Lubrication.Caused by Loose Set Screw Resulting in Bearing Failure.Pump Was Repaired & Returned to Service on 990512
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function
10 CFR 50.73(a)(2)(vii), Common Cause Inoperability
10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications
10 CFR 50.73(a)(2)(viii)
10 CFR 50.73(b)(2)(ii) | | 05000289/LER-1999-005, :on 990514,open Flood Path Between Turbine Bldg & Control Bldg Was Noted.Caused by Failure to Recognize That Mods Affected Flood Protection.Revised Flood Procedures.With |
- on 990514,open Flood Path Between Turbine Bldg & Control Bldg Was Noted.Caused by Failure to Recognize That Mods Affected Flood Protection.Revised Flood Procedures.With
| 10 CFR 50.73(b)(2)(ii) | | 05000289/LER-1999-006, :on 990525,inability of Pressurizer Support Bolts to Meet FSAR Requirements,Was Determined.Cause Not Identified.Performed Operability Review & Determined That Pressurizer Would Remain Operable Under Design Conditions |
- on 990525,inability of Pressurizer Support Bolts to Meet FSAR Requirements,Was Determined.Cause Not Identified.Performed Operability Review & Determined That Pressurizer Would Remain Operable Under Design Conditions
| 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition
10 CFR 50.73(b)(2)(ii) | | 05000289/LER-1999-007-01, Forwards LER 99-007-01 Re Increasing Failure Rate of ESAS Relays.Rept Supplements Preliminary Info Re Determination of Root Cause & Long Term Corrective Actions.Changes Made for Supplement Are Indicated in Bold Typeface | Forwards LER 99-007-01 Re Increasing Failure Rate of ESAS Relays.Rept Supplements Preliminary Info Re Determination of Root Cause & Long Term Corrective Actions.Changes Made for Supplement Are Indicated in Bold Typeface | | | 05000289/LER-1999-008, :on 990604,discovered That Air Flow Through Each of RB Fan Cooler Units Was Below Design Basis Requirement.Caused by Accumulation of Boric Acid from Rc Leakage.Normal Cooling Coils Have Been Cleaned |
- on 990604,discovered That Air Flow Through Each of RB Fan Cooler Units Was Below Design Basis Requirement.Caused by Accumulation of Boric Acid from Rc Leakage.Normal Cooling Coils Have Been Cleaned
| 10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition
10 CFR 50.73(a)(2)(iv), System Actuation
10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition
10 CFR 50.73(a)(2)(1)
10 CFR 50.73(b)(2)(ii) | | 05000289/LER-1999-009, :on 990626,automatic Start of EDG 1A Occurred. Caused by Failure of Fault Pressure Relay on Auxiliary Transformer 1B.Failed Pressure Relay Has Been Replaced |
- on 990626,automatic Start of EDG 1A Occurred. Caused by Failure of Fault Pressure Relay on Auxiliary Transformer 1B.Failed Pressure Relay Has Been Replaced
| 10 CFR 50.73(b)(2)(ii) | | 05000289/LER-1999-010, :on 990830,discovery of Condition Outside UFSAR Design Basis for Flood Protection Was Noted.Caused Because Original Problem Was Not Corrected by Design Change.Flood Procedure Was Immediately Revised.With |
- on 990830,discovery of Condition Outside UFSAR Design Basis for Flood Protection Was Noted.Caused Because Original Problem Was Not Corrected by Design Change.Flood Procedure Was Immediately Revised.With
| 10 CFR 50.73(a)(2)(i)
10 CFR 50.73(a)(2)(iii) |
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