05000311/LER-1980-009-03, /03L-0:on 800709,during RCS Heatup,Steam Generator Flow & Pressure Channel Response Inadequate.Bistables Placed in Tripped Mode.Caused by Closed Isolation Valve from Main Steam Piping Preventing Normal Operation.Valve Opened

/03L-0:on 800709,during RCS Heatup,Steam Generator Flow & Pressure Channel Response Inadequate.Bistables Placed in Tripped Mode.Caused by Closed Isolation Valve from Main Steam Piping Preventing Normal Operation.Valve Opened

ML18082A884
Person / Time
Site:	Salem
Issue date:	08/08/1980
From:	Murphy M Public Service Enterprise Group
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML18082A883	List: 05000311/LER-1980-009, Forwards LER 80-009/03L-0 05000311/LER-1980-009-03, /03L-0:on 800709,during RCS Heatup,Steam Generator Flow & Pressure Channel Response Inadequate.Bistables Placed in Tripped Mode.Caused by Closed Isolation Valve from Main Steam Piping Preventing Normal Operation.Valve Opened
References
LER-80-009-03L-01, LER-80-9-3L-1, NUDOCS 8008140331
Download: ML18082A884 (1)

LER-1980-009, /03L-0:on 800709,during RCS Heatup,Steam Generator Flow & Pressure Channel Response Inadequate.Bistables Placed in Tripped Mode.Caused by Closed Isolation Valve from Main Steam Piping Preventing Normal Operation.Valve Opened

Event date:
Report date:
3111980009R03 - NRC Website

text

NRC FORM 366 17-771 u. 5. NUCLt:AH REGULA I on i COMtvliSSIUN 9cENSEE EVENT REPORT

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LICENSEE CODE 14 15 o I o I o I o I o I - I o I o 101 4 I 11 1 I 11 1101 I I 0 LICENSE NUMBER 25 26 LICENSE TYPE JO 57 CAT 58 CON'T filIJ 7

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BO EVENT DESCRIPTION AND PROBABLE CONSEQUENCES@

[Q]j] I During a Real.!tor Coolant System heatup, it was determined that various [QI[) I Steam Generator Flow and Pressure Channels were not responding properlyf [ill]

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ITill Action Statement 3.3.2.1 was entered at 1220, and the bistables were placed in a tripped condition within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />.

This is the first occurrence of this type.

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8 SYSTEM CODE I IIBI@

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LER!RO LVENT YEAR

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REPORT I 8 I 0 I NUMBER 2'-

22

CAUSE

CAUSE COMP.

CODE SUBCODE COMPONENT CODE SUBCODE l.1?..J@ L!..J@ IIINISITIRIUI@ W 11 12 13 1B 19 SEQUENTIAL OCCURRENCE REPORT REPORT NO.

CODE TYPE VALVE SUBCODE w@

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~ l=1 23 24 26 27.

28 29 30 31 ACTION FUTURE TAKEN ACTION EFFECT SHUTDOWN

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REVISION NO.

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32 COMPONENT MANUFACTURER 80 ON PLANT METHOD HOURS ~ SUBMITTED FORM SUB.

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CAUSE DESCRIPTION AND CORRECTIVE ACTIONS @

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.OJ)) I The isolation valve from the maln steam piping was shut which prevented!

the channels from operating properly.

The valve was opened.

The heat-1 up procedure has been changed to require the valve lineup to be completrd DID I prior to commencing a plant heatup.

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METHOD OF

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% POWER OTHER STATUS ~ DISCOVERY DISCOVERY DESCRIPTION ~

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RELEASED OF RELEASE AMOUNT OF ACTIVITY ~

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9 10 11 LOCATION OF RELEASE @

NA 45 BO PERSONNEL EXPOSURES r.;;::.,.

NUMBER A

TYPE

DESCRIPTION

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9 11 12 13 BO PERSONNEL INJURIES

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NUMBER DESCRIPTION6 Efil I cl ol al@

A 7 B 9 11

~12~--c;o=----------------------------------------------B~O LOSS OF OR DAMAGE TO FACILITY G TYPE

DESCRIPTION

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ISSUEDeDESCRIPTION ~

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NAME OF PREPARER M.J

• Murphy PHONE:

609-935-0998

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