05000311/LER-1981-009-03, /03L-0:on 810423,during Plant Cooldown,Inadvertent Safety Injection Occurred.Caused by Valve 24MS10 Opening, Causing Dilution of Boron Injection Tank to Below Min Limits.Situation Corrected within Allowed Limits

/03L-0:on 810423,during Plant Cooldown,Inadvertent Safety Injection Occurred.Caused by Valve 24MS10 Opening, Causing Dilution of Boron Injection Tank to Below Min Limits.Situation Corrected within Allowed Limits

ML18086A588
Person / Time
Site:	Salem
Issue date:	05/22/1981
From:	Espey J Public Service Enterprise Group
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML18086A587	List: 05000311/LER-1981-009, Forwards LER 81-009/03L-0 05000311/LER-1981-009-03, /03L-0:on 810423,during Plant Cooldown,Inadvertent Safety Injection Occurred.Caused by Valve 24MS10 Opening, Causing Dilution of Boron Injection Tank to Below Min Limits.Situation Corrected within Allowed Limits
References
LER-81-009-03L, LER-81-9-3L, NUDOCS 8106020400
Download: ML18086A588 (1)

LER-1981-009, /03L-0:on 810423,during Plant Cooldown,Inadvertent Safety Injection Occurred.Caused by Valve 24MS10 Opening, Causing Dilution of Boron Injection Tank to Below Min Limits.Situation Corrected within Allowed Limits

Event date:
Report date:
3111981009R03 - NRC Website

text

LICENSEE EVENT REPORT S. NUCLEAR REGULATORY COMMISSION CONTROlBLOCK: ~1 __.....___._ __..__.__.._"'""IG) 1 6

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((JI] I At 0330 hours0.00382 days <br />0.0917 hours <br />5.456349e-4 weeks <br />1.25565e-4 months <br /> on April 23, 1981, an inadvertent safety injection occurred during (ill]

plant cooldown.

This occurrence constituted operation in a degraded mode IAW IIIIJ Technical Specification 6.9.1.9.b.

Previous similar occurrences:

77-01, 77-26, [ffiJ 77-29, 78-04, 78-74 (on Unit 1) and 80-31 (on Unit 2).

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This situation was corrected within the. allowed limits of Technical Specification 3.5.4.1.

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