ML20004D635
| ML20004D635 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 06/05/1981 |
| From: | TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| Shared Package | |
| ML20004D626 | List: |
| References | |
| LER-81-019-03L, LER-81-19-3L, NUDOCS 8106090601 | |
| Download: ML20004D635 (2) | |
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UPDATE REPORT--PRE 7IOUS REPORT DATE 5/15/81 LICENSEE EVENT REPORT w CON IllOL ItLOCK. l l f l (PLEASE PRINT oR TYPE ALL REoutRED INFORMATioNI [o l I 4 1 l Al Ll Bl Rl FI 3l@l 01 O l -l 010 LICENSEE Cont 14 15 l O l 0 ! 0 l- l 0 ! 0 LICENSE NuM8ER 25 l@l 26 4 LICE Il 11 l1 Il l@lSF CAT NSE TYPE JO I 58 l@ we r L'LL'J ~4 CliL' I60Ll@l 68015 l 0OOCK l 0E TlNUM8E 0 l R2 l 916 @l (wl 63 0 l EVENT 4 l 2DATEl 3 l 811 hl0 l6REPOR 14 75 I015 18 11 l@ T D ATE 15 0 6VEN T DESCRIPTION AND PROB ABLE CONSEQUENCES h [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 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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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) 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: Unit 3 HPCI inoperable to replace gland seal condenser gaskets. Conditiens Prior to Occurrence: Unit i refueling outage Unit 2 at 99% Unit 3 scram due to low reactor water level. Action specified in the Technical Specification Surveillance Requirements met due to inoperable equipment. Describe. Requirements of T.S. 3.5.E.1(2) were met. l t pparent Cause of Occurrence: Overpressurizing gland seal condenser (tube side). Analysis of Occurrence: l There was no danger to the health or safety of the public, no release of activity. l no damage to the plant or equipment, and no resulting significant chain of events. l l Corrective Action: Replaced head gaskets. Instrumentation will be installed to monitor piping pressures to determine cause of overpressurization. Failure Data: BFRO-50-260/74016W, 74017W, 74024W, and 74028W. i
- Retention : Period - Lifetime; Responsibility - Document Control Supervisor
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