ML20084C786
| ML20084C786 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek, 05000000 |
| Issue date: | 08/26/1974 |
| From: | Carroll J JERSEY CENTRAL POWER & LIGHT CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML20084C777 | List: |
| References | |
| AO-50-219-74-45, NUDOCS 8304080220 | |
| Download: ML20084C786 (5) | |
Text
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To:
James P. O'Reilly 4 'b L
Directorate of Regulatory Operstiens Regicn I 631 Part Avenuo King of Prussia, Pennsylvania 19405 r
From:
Jersey Central Power G Light Co::peny Oyster Creek Nuc1 car Generating Statica Docket #50-219 Forked River, New Jersey 08731
Subject:
Abnormal Occurrence Report No. 50-210/74/45 The follotting is a prolisinary report being sdaitted' in compliance with the Tec!mical Specifications, paragraph 6.6.2.
Preliiinary Approval:
ii
&m e /\\i h 8/26/74 J.T. Carroll,[.
Date
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cc: Mr. A. Gindusso e
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0304080220 740830 J
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Dato of Initial Teic;he.8
'8& M t' occurrence:
s/24/74
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~{f j Rdport Date:
.h/26/?4' Occurrc=co,:
1100-j' 4
~v OYSTER CISSI NUCIEAR GENEPATING STATIO:1 FORIED RIVER, IEU JERSSY 08731 i
e Abner =21 Occurrence Report No. 50-219/74/ 45 i.
IZCHTIFICAT10!!
This event is censidered a violation of the cec:itzent to 0F f.u.inENCE:
fo11cw the MAPUIG2 limits as submitted on An;1st 5,1974, sesequently submitted as a chengo to the Tecnical Epscifi-1 u
caticus, Sectica 3.10, on August 22, 1974.
I This event is cw.sidered to be an abnormal occurrener as de-fined in the Technical Specifications, p rs migh 1.153.
CONDITIC!:3 PRIC2 Steady State EWor Routine Shutd:*n TO GhM=KS: -.
Hot Standby Oporetica Cold Shutdar.a x
Lead Changes Durtug Refus11ng Bhutdctn Routino Pc: tar Operation Operatico
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Other - (,Epecify)
Routins Startup Ig Power:
Reactor,1910.7 Ct Electric, 644 N:fe 9
Flew:
Racirc.,15.3 X 10 gp-a 6 lb/hr Feed., 7.14 X 10 Stack Gas:
11,200 pC1/sec WJPTICM Folicering a load reduction comencing at 2200, August 23, 1974, OF Om?MCE:
for M31V Full Closure Tests and subsequent load increase com-i mencing at 0245 on August 24, 1974, completed at 0900,the reactor was operating at essentially rated power (1910.7 Mft '
f and G44 Nfe).
Pron approximstely 0915 to 1115, while at rated 1
pwer, the xenon transient initiated by the load reductica and j
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subsequent increase caused the MAPU!GR limit for_ the Type II
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3 Oi s e=eties icested at Coro hctes 27-s 37-Id.
e 16-16 and 16-38 to be exccoded.
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4 Proceduro Design
_ Ltiu:ual Cervics Conditics 7
APPOT CAUSE Manufacture Inc. Envi'ren=c=ts)
OP OCWRRDO:
' Installation /
Component Failuro
~ Construction other (Specify) 1 perator O
i when the MAPU!GR for Type II fuel was checked et 0015.and i
found to be at 97.8% of its limit, centrol of the APUICR was I
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Mcu-attempted by inserting several groups of ccatrol rods.
aver, at 1100 when the MAPu!GR for Typo !! fuel was ajaTf'$*"2'%
checked, it was ivund thct th"o control reds had not effcetively q
r Recirculatial ficw, l
controlled far APUlGR for Type II fuel.
sad thus reactor power, was subsequently decreased to.reestab-lish the MAPUlGR for Type II fuci below its litit, as verified at 1115.
Time of APU1GR MAPUiGR Geck _
Calculated Licit
% of_ Limit 0915 11.91 12.18 97.8%
1100 12.29 12.18 100.9%
1115 10.76 12.18 88.4t, In the event of a Loss of Coolant Accident (thCA), the Typo
- !ALYSIS OF OCWRPS CB:
II fuoi assezblics located at Coro Coordinates 37-38 and its quarter core symmetric locations may have exceeded ths.2200'F peak clad temerature and 171r, local actal/ water naction limit as determined in accordance with 10CFR50, Appendix K, calculated using a prolininary General Electric blowdown nalysis.
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ng M sipiesmass of this' event was MMdsed by the su v
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3' extent of the lidt excess and by tp relatively sAbert taas '.
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duration of its existence, approximately aos to two hours 4
I maximum.
j 00RE CTIVE 1he copiset personnel were notified (as specified in ACT15:
Standing Order No.18) and'the reactor power was.teduced by recirculation flow to the point where no MAPWGR limits were violated.(1779 left,.50510fe). ' 1his power lovsk was mainasised
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for six hours, then a gradual power increase to rated:vas effected.
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