ML19317G192
| ML19317G192 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 08/08/1977 |
| From: | Stewart W FLORIDA POWER CORP. |
| To: | |
| Shared Package | |
| ML19317G191 | List: |
| References | |
| NUDOCS 8002280834 | |
| Download: ML19317G192 (2) | |
Text
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CONTROL r OCK:l l
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l (PLEA 7E PRINT ALL REQUIRED INFCRMAT;r.
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""'"J' NA ucENSE ~uoeER
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14 15 25 26 30 31 32
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CCCx!T NUMBER EVENT DATE REPCRT CATE CATEcoRv O 1 CON T l -l -l l Ll l Ll l 0 l 5 l 0 l --l 0 l 3 l 0 l 2 l l0 l7 l1l2 l7 l 7l l 0 l 8 l 0 l 8 l 7 l 7.
7 8 57 58 59 60 61 68 69 74 75 EVENT DESCRIPTION O
l In mode 1 operation, Unit #3 was notified that Units 1 & 2 batteries had failed to meht 7 89 c3 l the acceptance criteria of SP-511, contrary to Tech Specs 3.8.1.1.a.
Redundancy was main-7 89 l tained with the emergency geaerators. First time occurrence. The SP was re-run and tile 04 y f batteries were declared operable within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.
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<tER 77-863 7 89 PauE E
CCE COMPONENT CCCE SUPPUER 7tMR VCLADON
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lNl 7 89 10 11 12 17 43 44 47 48 CAUSE DESCRIPTION s
Oe lThe previous quarterly specific gravity rsadings were recorded prior to the batteries "
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'7 8'9 E..~,
Os l stabilizing after an electrolyte addition. The specific gravity of any cell was not belew
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,,y_l the Tech Spec requirement of 1.20.
6 FacuTv METuco cp ST&TUS -
% POWER oTHER STATUS CISCOVE.RY OtSCOVERY DESCRtPTION
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9 10 12 13 44 45 48 e.
ACTMTV CCATENT
- AELIASED~ cF RELEASE AMOUNT CF ACTMTY
- LOCATCN CF RELEASE
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10 11 44 45 EC PEDSONNEL EXPOSURES NUMBER TYPE DESCMTCN
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7 89 11 12 13 EC PERSONNEL INJURIES NUMBER CESCRIPTCN l0l0!0l l
NA' 14 7
8'9 11' 12 BC OFFSITE CONSECUENCES gl NA
~ 7 89
. SC LOSS OR DAMAGE TO FACIUTY TYPE CESCRPTON 5.0..l
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NA 7 89 10 c;
PUBUCITY
._ $ l 7 89 i;
0' 280 [ 3 7
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ADDITIONAL FACTORS 2
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SEE A1TACHED SUPPLEMENTARY INFORMATION 7 89 Q
NAME*. W. P. Stewart ( i \\ \\
PHONE: 813/866-4159 ww cro ens.ssT
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SUPPLEMENTARY INFORMATION 1.
Report No.:
50-302/77-86 2.
Facility:
Crystal River Unit #3 3.
Report Date:
8 August 1977 4.
Occurrence Date:
12 July 1977 5.
Identificatica of Occurrence:
Failure to have two independent circuits between the offsite transmission network and the onsite class 1E distribution system contrary to Technical Specification 3.8.1.1.a.
6.
Conditions Prior to Occurrence:
Mode 1 power operation.
7.
Description of Occurrence:
f At 1110, Unit #3 was notified that the Units 1 & 2 batteries had not met the acceptance 5'
criteria of the Quarterly Battery Check, Surveillance Procedure SP-511.
The Units 1 & 2 batteries had exceeded the.01 drop in the specific gravity from the previo ts quartkr's surveillance. A start of the emergency diesels was made to verify opera-bility. The batteries were determined to be operable as the specifi:: gravity was greater than the Technical Specification requirement of 1.20.
8.
Designation of Apparent Cause:
The greater than.01 drop in the specific gravity was due to the previous quarter's readings being recorded before the batteries had stabilized after an electrolyte addition.
9.
Analysis of Occurrence:
There was no safety hazards to the plant or public as the batteries were functional at all times, and the emergency diesels were operable, and available.
10.
Corrective Action:
None required as the batteries were well within all Tech Spec requirements.
11.
Failure Data:
This was tha first occurrence of the specific gravity dropping more than the.01 limit.
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