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| {{Adams
| | #REDIRECT [[05000296/LER-1981-019-03, During Shutdown,When HPCI Sys Initiated,Upper & Lower HPCI Gland Seal Condenser Head Gaskets Were Blown.Caused by Overpressurization of Tube Side of HPCI Gland Seal Condenser.Gaskets Replaced]] |
| | number = ML20004D635
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| | issue date = 06/05/1981
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| | title = Updated LER 81-019/03L-1:on 810423,during Shutdown,When HPCI Sys Initiated,Upper & Lower HPCI Gland Seal Condenser Head Gaskets Were Blown.Caused by Overpressurization of Tube Side of HPCI Gland Seal Condenser.Gaskets Replaced
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| | author name =
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| | author affiliation = TENNESSEE VALLEY AUTHORITY
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| | addressee name =
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| | addressee affiliation = NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
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| | docket = 05000296
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| | license number =
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| | contact person =
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| | document report number = LER-81-019-03L, LER-81-19-3L, NUDOCS 8106090601
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| | package number = ML20004D626
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| | document type = LICENSEE EVENT REPORT (SEE ALSO AO,RO), TEXT-SAFETY REPORT
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| | page count = 2
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| }}
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| =Text=
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| {{#Wiki_filter:a
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| * " ' " " * * * " * * ' " * " ' ~ " ' ' "
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| UPDATE REPORT--PRE 7IOUS REPORT DATE 5/15/81 LICENSEE EVENT REPORT w
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| CON IllOL ItLOCK. l l f l (PLEASE PRINT oR TYPE ALL REoutRED INFORMATioNI
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| T D ATE 15 0 6VEN T DESCRIPTION AND PROB ABLE CONSEQUENCES h
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| [n1.'l l During automatic reactor shutdown, when the HPCI system was initiated. the unoer I gg l and lower HPCI gland seal condenser head gaskets were blown. The HPCI was removed I i n I .i l l from service to replace the gaskets. There was no danger to the health or safety i I
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| g o j ., i l of the public. Redundant systems were operable. Previous similar events: B FRO l l g l 260/74016W, 74017W, 74024W, and 74028W. I PEI I
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| 33 14 J5 40 di 42 43 44 47 CAUSC DESCRIPTION AND CORRECTIVE ACTIONS h I i I o ! LOverpressurization of the tube side of the HPCI stland seal condenser caused the l
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| ((_TJ Lgaskets to stretch out of place. Caskets were replaced. Graham Manufacturine I
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| ,,i j l Company neoprene gasket; pressure class, 150 psi (design); normal operating pressure, I i,i q l 60 psi. Special test will be initiated to monitor piping pressures to determine 1 liiil l cause of overpressurization. I H ) 80 T li ' POWER
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| Tennessee Valley Authority Form BF-17 Erowns Ferry Nuclear Plant BF 15.2 3/24/81 LER SUPPLEMENTAL INFORMATION BFRO 296 / 81019 R1 Technical Specification Involved 3.5.E.l(2)
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| Reported Under Technical Specification 6.7.2.b.2 Date of Occurrence 4/23/81 Time of Occurrence 0830 Unit 3 Identification and Description of Occurrence:
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| Unit 3 HPCI inoperable to replace gland seal condenser gaskets.
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| Conditiens Prior to Occurrence:
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| Unit i refueling outage Unit 2 at 99%
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| Unit 3 scram due to low reactor water level.
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| Action specified in the Technical Specification Surveillance Requirements met due to inoperable equipment. Describe.
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| Requirements of T.S. 3.5.E.1(2) were met.
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| l t pparent Cause of Occurrence:
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| Overpressurizing gland seal condenser (tube side).
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| Analysis of Occurrence:
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| l There was no danger to the health or safety of the public, no release of activity.
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| l no damage to the plant or equipment, and no resulting significant chain of events.
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| l l Corrective Action:
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| Replaced head gaskets. Instrumentation will be installed to monitor piping pressures to determine cause of overpressurization.
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| Failure Data:
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| BFRO-50-260/74016W, 74017W, 74024W, and 74028W.
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| i
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| * Retention : Period - Lifetime; Responsibility - Document Control Supervisor
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| * Revision : t
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| -N s
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| ,}}
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