ML20031C390
| ML20031C390 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point File:Consumers Energy icon.png |
| Issue date: | 07/15/1977 |
| From: | Bixel D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| RO-77-21, NUDOCS 8110070107 | |
| Download: ML20031C390 (2) | |
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US Nuclear Regulatory Coc=ission T99 Roosevelt Road Glen Ellyn, IL 60137 Docer 50-155 - LICCiSZ DPR f0 SIG E00K FOLT2 FIXTf -
LICEiSIE IVITI REPCRT - RO-77-21 Transmitted attached is a Licensee Event Report for the Big Rock Point Plant.
David A 31xel (Signed)
David A 31xel Nuclear Licensing Ai-inistrator l
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. UCENSEE EVENT REPORT o
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63 CVENT DESCRPTON Q { During the-::enthly soecific gravity checks of the Reactor Depressurization System
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7 89 Q l Batterv B, Cell Nucher 27 was found to have a specific gravity of 1.195. All other.l 7 e9 eo l cells were ? 1.200 thus providing adecuate cargin for all safety functions.
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7 89 80 l_ batterv was olaced on 24-hour equalir.ing charge. Incident is' repetitive. RO-77-21 l o5 7 89
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7 89 10 11 12 17 43 44 47 43 CAUSE DESCAPTCN
@ l The readings were taken during a charge about 8-10 hours after a water addition.
l 7 89 Q l Battery water-levels were not taken prior to the charge necessitating watering dur 60 l
7 89 g l ing the charge; as a result, P,ufficient mixing time was avsilable. Shiftsuper-]
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7 89 11 12 13 60 PERSONNEL NJURES NUMM4 DESCJtpTCN l
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l 7 89 11 12 ao PR08ABLE CONSEQUENCES 3 I None
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7 89 LOSS CR CAMAGE TO FActJTY 60 Tvet casempecee 8 12J l NA c
l 7 89 10 80 PUBUC!TY
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. so ADDITCNAL FACTORS 18 l (Cause Description - Contd) visors will be instructed to verify battery water l
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