05000339/LER-1980-027-03, /03L-0:on 800620,w/unit at Startup Condition,One Main Steam Flow Transmitter Found Inoperable.Caused by Loose Connection,Resulting from Stripped Screw.Screw Replaced, Connection Tightened & Transmitter Calibr

/03L-0:on 800620,w/unit at Startup Condition,One Main Steam Flow Transmitter Found Inoperable.Caused by Loose Connection,Resulting from Stripped Screw.Screw Replaced, Connection Tightened & Transmitter Calibr

ML19320B101
Person / Time
Site:	North Anna
Issue date:	07/02/1980
From:	Cartwright W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19320B096	List: 05000339/LER-1980-027, Forwards LER 80-027/03L-0 05000339/LER-1980-027-03, /03L-0:on 800620,w/unit at Startup Condition,One Main Steam Flow Transmitter Found Inoperable.Caused by Loose Connection,Resulting from Stripped Screw.Screw Replaced, Connection Tightened & Transmitter Calibr
References
LER-80-027-03L-01, LER-80-27-3L-1, NUDOCS 8007090304
Download: ML19320B101 (1)

LER-1980-027, /03L-0:on 800620,w/unit at Startup Condition,One Main Steam Flow Transmitter Found Inoperable.Caused by Loose Connection,Resulting from Stripped Screw.Screw Replaced, Connection Tightened & Transmitter Calibr

Event date:
Report date:
3391980027R03 - NRC Website

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U.S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT CONTROL BLOCK / / / / / / / (1)

(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

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/V/A/N/A/S/2/ (2)

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/4/1/1/1/1 (4)

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LICENSEE CODE LICENSE NUMBER LICENSE TYPE CAT

/L/ (6)

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(8)

/0/7/0/2/8/0 (9)

UR E DOCKET NUMBER EVENT DATE REPORT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES (10)

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On June 20, 1980 with the unit at Startup condition, one of the main steam

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flow transmitters was found to be inoperable. Since there has been no

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accumulation of fission products due to reactor power being limited to <5%

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and since the other main steam flow transmitter for that steam generator was

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operable, the health and safety of the public were not affected. This is

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contrary to TS 3.3.2.1 and reportable by T.S. 6.9.1.9.a.

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SYSTEM

CAUSE

CAUSE COMP.

VALVE COEE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE

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/I/B/ (11) /E/ (12) /A/ (13) /I/N/S/T/R/U/ (14) [T/ (15)

[Z/ (16)

SEQUENTIAL OCCURRENCE REPORT REVISION LER/R0 EVENT YEAR REPORT NO.

CODE TYPE NO.

(17) REPORT NUMBER

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ACTION FUTURE EFFECT SHUTDOWN ATTACHMENT NPRD-4 PRIME COMP. COMPONENT TAKEN ACTION ON PLANT METHOD HOURS SUBMITTED FORM SUB. SUPPLIER MANUFACTURER

/B/ (18) /Z/ (19) /Z/ (20) /Z/ (21) /0/0/0/0/ (22) [N/ (23) /N/ (24) /N/ (25) /R/3/6/9/ (26 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS (27)

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A loose connection resulting from a stripped screw was found in the transmitter /

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resulting in zero rathe. than one volt transmitter output at no flow. The flow /

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channel was placed in test within one hour. The screw waa replaced, the con- /

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nection tightened and the transmitter calibrated. Channel was verified

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operable and returned to service within four hours. No generic implication.

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FACILITY METHOD OF STATUS

% POWER OTHER STATUS

/ (30) DISCOVERY DISCOVERY DESCRIPTION (32)

/1/5/

/B/ (28)

/0/0/0/ (29) /

NA

/A/ (31)

/During Start Up Test /

ACTIVITY CONTENT RELEASED OF RELEASE AMOUNT OF ACTIVITY (35)

LOCATION OF RELEASE (36)

/1/6/

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NA

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NA

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PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION (39)

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NA

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PERSONNEL INJURIES NUMBER DESCRIPTION (41)

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NA

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LOSS OF OR DAMAGE TO FACILITY (43)

TYPE

DESCRIPTION

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NA

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PUBLICITY ISSUED DESCRIPTION (45)

NRC USE ONLY

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NA

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8 0 0 7 09 OM NAME OF PREPARER W. R. CARTWRIGHT

"{0NE (703) 894-5151