ML20003C385
| ML20003C385 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 04/18/1974 |
| From: | Reeves D JERSEY CENTRAL POWER & LIGHT CO. |
| To: | |
| References | |
| AO-50-219-74-27, NUDOCS 8103030200 | |
| Download: ML20003C385 (2) | |
Text
Tice of 2cn 1500
. D!s covery:
4/13', _
OYSTER CREEK NL'Ct.EMI GENEP Tb'G STATION t
FORKED RIVER, SEW JEESEY 08731 Abnormal Occurrence Report No. 50-219/74/ 3 al 8
Violation of the Tcchnical Specifications, paragraph N/A a jcN Failuro of thrco hydraulic shock and sway arrestors (two EEt conse-located on the main stcan line and one on the feedwater line).
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This event is censidered to be an abnormal occurrence as de-
- cration, 1.150 fined in the Technical Specifications, paragraph Jeen PRIOR Routino Shutdown Nctural 3CE
~ Steady State Power
= Operation Hot Stendby load Changes During
~ Cold Shutdown Routino Power Operation X _ Refueling Shutdown Other (Specify)
_ Routine Startup
~
the Operation ihe plcnt was shutdo.m with reactor coolant <212*F..and in the process of preparing for refueling operations.
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an inspection was conducted of all Bergen ON On A,pzil 17, 1974, Paterson hydraulic shock and sway arrestor units installed in JNCE:
the drywell.. As a result of this inspection, three units, re-
- built in Septenber 1973 with molded polyurethane material, f
were found inoperable as detornined by the absence of fluid level indication in the accu:ulators. The inoperable units P00R ORIGINAL.
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b o303 O? DO
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N 83%cs tweWan
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487530 South !!ain Stcan 23' 487512 South 1!ain Sto:=
51' 4S7519 South Feedwnter 51' APPARP.!.T CAU3E Design
_ Proceduro 0F OCCURr2SCE:
lbnufacture Unusual Service Cendition
~
Installation /
Inc. Environ ental l
Construction Corponent Failure
_ Operr. tor
_ Other (Specify)
None of the units have as yet been disasser. bled and, conse-quently, the failure nechanism is unknown at this ti e.
ANALYSIS OF Had the design scistic ovent occurred during power operation, OCCURPE CB:
the restraining capt.bil:. ties of these units esy have been seriously icpaired and, consequentily, degraded the ' t;ructural
~
s integrity of the steam and feedwater lines in question.
C0aracrIVE Current plens are to replaco 'those units and others in the AWICN:
pricary containcent which still contain colded polymrethane v
natorial with units rebuilt exclusively with othyleno propylene
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FAILURE DATA:
Hanufacturer:
Bergen-Paterson Type:
IISSA-10 Serial Nos. :
487530 487512 487519 4
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7 l P00R ORIGINAL
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