05000271/LER-1981-006-03, /03L-0:on 810127,ATWS/recirculation Pump Trip High Pressure Trip Points from PT-2-3-56Bm,56Cm & 56Dm Tripped Above Tech Spec Level During Surveillance Testing Per Operation Procedure 4342.Caused by Instrument Drift

/03L-0:on 810127,ATWS/recirculation Pump Trip High Pressure Trip Points from PT-2-3-56Bm,56Cm & 56Dm Tripped Above Tech Spec Level During Surveillance Testing Per Operation Procedure 4342.Caused by Instrument Drift

ML19341C635
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	02/25/1981
From:	Murphy W VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19341C631	List: 05000271/LER-1981-006, Forwards LER 81-006/03L-0 05000271/LER-1981-006-03, /03L-0:on 810127,ATWS/recirculation Pump Trip High Pressure Trip Points from PT-2-3-56Bm,56Cm & 56Dm Tripped Above Tech Spec Level During Surveillance Testing Per Operation Procedure 4342.Caused by Instrument Drift
References
LER-81-006-03L, LER-81-6-3L, NUDOCS 8103030856
Download: ML19341C635 (1)

LER-1981-006, /03L-0:on 810127,ATWS/recirculation Pump Trip High Pressure Trip Points from PT-2-3-56Bm,56Cm & 56Dm Tripped Above Tech Spec Level During Surveillance Testing Per Operation Procedure 4342.Caused by Instrument Drift

Event date:
Report date:
2711981006R03 - NRC Website

text

NSC FCIM 384 U. S. NUCLEAR REGULATORY COMMISSION LER 81-06/3L LICENSEE EVENT REPORT CONTROL BLOCK: l l

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8 60 61 COCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION ANO PROBA8LE CONSEQUENCES h l o 121 l During normal operation while performing surveillance testing per 0.P. 4342 the l

(ATWS/RPT high pressure trip points from PT-2-3-56Bm, 56Cm, & 56Dm were found to trip; 50,3; l o 141 1 1 to 2 psi higher than allowed in Tech. Spec. Table 3.2.1.

There were 'no signifi-l 10 ; s ; l cant effects as a result of this event, nor were there any adverse affects to public; t o is l l health or safety. This event is r.ot repetative.

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