ML20085E549
| ML20085E549 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 05/14/1976 |
| From: | Bixel D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML20085E546 | List: |
| References | |
| LER-ER-76-012, LER-ER-76-12, NUDOCS 8308150205 | |
| Download: ML20085E549 (2) | |
Text
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O 9x UCENSEE EVENT REPORT
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CONTROL 8 LOCK:l l
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l (ptgASE PRMIT ALL RESUNIED INFOAMATION) 1 8
LCENSE NUM8ER TYPE TYPE O
l Il Ml Pl A l L l 1l l ol0 l-l ol ol0 l o l o l-l ol0 l l h l 1 l 1l 1l 1l lol1l 7 89 14 in 25 28 30 31 32 E source coCKET NUMOER EVENT DATE REPO,37 QATE O cowr l l 1 trJ LL_]
lo I S I 01-l ol 2l5 i s l I olu 13 l0171 si lo i s 111 ulr ls I 7 8 57 58 59 80 81 88 89 74 75 80 EVENT OESCRIlmON D6 l During a review of equi; ment associated with long-term cooling qualification, we l
7 89 80 Q l have determined that two valves (CV-2113 and CV-2115 associated with charging l
7 89 80 UE l system) may not meet code require =ents (original design steeifications) as they l
7 89 80 UE l relate to allevable stresses at the valve body to bonnet flange.
(ER-76-12) l 7 8@9 80 l
l 7 89
,, mag 80 Y:EE
$o*E E
O CoMooNENT CoOE VOLATION E I als I ls_]
Iv I A l LI VI El X I
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[NJ 7 89 10 11 12 17 43 44 47 48 CAUSE DESCRIPTION gg l When these valves were de' signed, standard methods of calculating these. stresses did l 7 89 80 HE I not exist. Calculations using current 1*r accetted methods show the stresses to l
( ' @8 9l be below yield but above code allevable.
The valve is a 2" globe, air overated, l
80
'sE "osCNEN s power oTe status ceCovERY oEscapTON (AJ loIoI ol I NA l
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l NA l
i 7 8 9
10 12 13 44 45 48 80 RiLND RE["ESE C
AMOUNT CF ACTNTY LOCATON CF RELEASE E
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NA l
l NA l
7 8 9
10 11 44 45 80 PERSONNEL EXPOSURES h
NUMBER TYPE DESCAPTCN 3 I of o I ol Lz_]
I NA l
b 7 89 11 12 13 80 PERSONNEL INJUAIES NUM8ER CESCRIPTON l 0101 ol I i4 NA l
l 7 89 11 12 80 l
t PROBABLE CONSEQUENCES 3G l None, valve stresses are conservatively calculated to be belov vield.
l 7 89 80
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LOSS OR CAMAGE TO FACruTY p
TYPE DESCAPTCN 8 LzJ l
nA l
7 89 10 80 PUBUCITY hl NA l
7 89 80 ADDITIONAL FACTORS
] l (Cause Description Contd) 'A351 CF8M SS, 1500 lb class. Valve bonnet replacement l
7 89 80 Q l vill resolve problem and vill be completed during or before next refueling outage l
(summer of 1977).
8308150205 760525 PDR ADOCK 05000255 S
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D' Mr James G. Keppler Office of Inspection Enforcement
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Region III US Nuclear ReFJLlStory Cc::::21ssion 799 Roosevelt Road Glen Ellyn, IL 60137 DOCKET 50-255, LICENSE DPR l PALISADE PLANT, ER-76-12 CHARGING SYSTEM VALVES 1
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Attached is a reportable occurrence which relates to the Palisades Plant.
This occurrence has been classified as a prcmpt reportable occurrence. It should be further noted that the event date (April 30,1976) is the date when it was determined that this occurrence was reportable.
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~w David A. Bixel Assistant Nuclear Licensing Administrator GUM SENT REGION l
MAY I. '. '
.