05000318/LER-1980-033-03, /03L-0:on 800716,during Performance of Routine Test,Discovered Unidentified RCS Leakage Exceeding Tech Spec Limits.Caused by Packing Failure Due to Age.Pressurizer Spray Valve Bypass Valve Will Be Replaced

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/03L-0:on 800716,during Performance of Routine Test,Discovered Unidentified RCS Leakage Exceeding Tech Spec Limits.Caused by Packing Failure Due to Age.Pressurizer Spray Valve Bypass Valve Will Be Replaced
ML19331C467
Person / Time
Site: Calvert Cliffs Constellation icon.png
Issue date: 08/13/1980
From: Davis S, Huseby D
BALTIMORE GAS & ELECTRIC CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19331C462 List:
References
LER-80-033-03L-01, LER-80-33-3L-1, NUDOCS 8008180440
Download: ML19331C467 (1)


LER-1980-033, /03L-0:on 800716,during Performance of Routine Test,Discovered Unidentified RCS Leakage Exceeding Tech Spec Limits.Caused by Packing Failure Due to Age.Pressurizer Spray Valve Bypass Valve Will Be Replaced
Event date:
Report date:
3181980033R03 - NRC Website

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60 61 DOCKET NU'J8ER 68 69 EVENT O ATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h l o 121 l At 0130 during the performance of a routine test it was discovered that I

t o i31 I unidentified Reactor Coolant (RCS) leakage exceeded the Tech Spec limit at l

[ a 141 1 1. 72 apm (T.S. 3.4.6.2). An investication revealed that sorav valve 100 E I

j a is1 i mini ficw bypass leakoff line isolation valve packing was leaking. The valve l

  • p is i I was shut and RCS leakage was reduced to within T.S. limits at 0300. This I

l o 171 l is not a repetitive occurrence.

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Repairs will be performed durino the next I

fi i r j l refueling outace. Pressurizer spray valve bvcass valve is to be recacked and I

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