ML19253B425

LER 79-065/03L-0:on 790916,HPCI Turbine Tripped & Could Not Be Reset.Caused by HPCI Pump Suction Pressure hi-low Trip Out of Calibr in Trip Direction.Instrument Recalibr & HPCI Sys Returned to Normal

ML19253B425
Person / Time
Site:	Brunswick
Issue date:	10/11/1979
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19253B421	List: ML19253B420 ML19253B425
References
LER-79-065-03L-01, LER-79-65-3L-1, NUDOCS 7910150534
Download: ML19253B425 (1)

Text

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LICENSEE EVENT REPORT CONTROL BLOCK l 1

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(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

Io 1 l NI CI BI El P! 1!@l O! 0l I O!LICENSE O! CI OI O! -l O! 0l@l NUMBER 25 26 4l LICENSE 1l 1 TYPE 1l1l@l JO l

57 CAT 58 l@ ,

7 8 9 LICENSEE CODE 14 15 CON'T E "'

Sul"CE l L l@l 015DOCKET l o NUMBER l- 10 31215l@lOl9 68 63 1 6I719hl110 EVENT DATE 74 75 1l 1l 7l REPORT DATE 9 l@80 7 8 60 61 EVENT DESCRIPTION AND PROBASLE CONSEQUENCES h o 2 During normal plant operation, the operator noticed that the HPCI turbine had tripped 1 o 3 l and cou_d not be reset. The HPCI system was declared inoperable. l o 4,j Technical Specifications 3.5.1, 6.9.1.9b l o s l l l

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9 to 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION EVENT YEAR REPORT NO. CODE TYPE NO.

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CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 1 o l An investigation showed that 1E41-PS:-N010. HPCI pump suction _ p-essure Hi/Lo trip, wasl 11 111 l out of calibration.in the trip direction. 1E41-PS-N010 was recalibrated and the HPCII i 2 I system returned to norual. A preventive ma'.ntenance item has recentiv been established i 3 l on this instrument to calibrate the instrument semiannually. This is considered an l gl isolated event and no further action is required. 80 1

7 8 9 STA  % POWER OTHER STATUS OtSCO Y DISCOVERY DESCRIPTION 1 5 l Cl@ l0 0 l3 l@l NA l W h l Operator Surveillance l AbVITY CO TENT F,ELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE l- F1 Lii@ L;;J@l NA l l NA l PERSONNEL ExPoSudES NUMBER TYPE DESCRIPTION l

Li_L.I 1 d d d@l z l@l NA PERSONNEL INJURIES NUM8ER DESCRIPTION I

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LOSS OF OR DAMAGE TO FACILITY TYPE DESCRIPTION l

1i_L9.J I z i@l NA 80 7 8 9 10 ISSUE @DE7CR.RTiON@ 7910150 O

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NAME OF PREPARER A C_ Tnl1f a Tv PHONE: 919-457-9521 {