U-601671, Ro:On 900508,discovered That Replacement Bellows Had Tie Rods Installed to Limit Bellows Expansion.Div I & II Diesel Generators Declared Inoperable & Controlled Plant Shutdown Initiated.Unusual Event Terminated on 900509
| ML20043A982 | |
| Person / Time | |
|---|---|
| Site: | Clinton  |
| Issue date: | 05/15/1990 |
| From: | Spangenberg F ILLINOIS POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| U-601671, NUDOCS 9005230366 | |
| Download: ML20043A982 (2) | |
Text
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' /Lt./NOlB POWER COMPANY-JP CLINTON POWER STATION P.O. BOX 678, CLINTON. ILLINOIS 61727 May:15, 1990 Docket No. 50-461-l l-U. S.; Nuclear Regulatory Commission >
Document Control-Desk Washington,,D.C.
20555
Subject:
yinton Power Station Notification of Untisual Event 1
Dear Sir:
l:
Please. find attached a summary report of the " Notification of Unusual' L
Event (NOUE)" which occurred at the Clinton' Power: Station-on'May; 8,11990.-
L This summary report is submitted pursuant to Appendix-1;of NUREG 0654
~
L (Revision 1) and Clinton Power Station.. Emergency: Plan Implemet. ting..
l-Procedure AP-03.
If there are any-questions concerning this' summary
[
l report, please contact me at (217) 935-8881,- extension 3400.-
Sincerely.yours,-
['
O.A.Sp 1
3 F.A. Span (enbe,III Manager A Licen~...ng and afety l
FAS/RLG/mjb Attachment i
cc:
Regional Administrator, Region III, USNRC k
W. Snell, Chief Emergency Preparedness Section-NRC Clinton Licensing Project-Manager
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NRC Resident Office Illinois Department of. Nuclear Safety 3
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Clinton Power Station Notification of Unusual Event
'On. Tuesday, May 8, 1990, at 2040 hours0.0236 days <br />0.567 hours <br />0.00337 weeks <br />7.7622e-4 months <br />, a' Notification of Unusual Event (NOUE)-was' declared in accordance with Emergency Plan Implementing; Procedure:EC.
02, EMERGENCY CLASSIFICATIONS..This procedure requires a NOUE be declared if a shutdown is required:per CPS. Technical Specifications-and the plant actually starts reducing power.
Clinton Power Station.was operating at approximately 100%. power-in MODE:1~.
During preparation of a field alteration for bellows. replacement" on Shut-Down Service. Water (SX) piping which serves.a diesel generator, it was a
determined that the replacement bellows had tie rods installed to limit bellows expansion whereas the bellows in place did not. 'Further review indicated that W
none of the Division I or II diesel generator expansion bellows on SX piping had-t tie rods installed (Division III diesel generator h's the. threaded; tie rods; a
installed).
Diesel generator: operability could not be proven for.the plant design.
basis events. As-a result, Division I'and II' diesel generators were' declared q
inoperable and the~ action statement.of Technical Specificationf3.8.1.1 was entered.
In accordance with the Technical-Specificatinn action' statement,.CPSE began a controlled shutdown of the plant.
The State of Illinois was notified of the.NOUE at~2040 hours'on1 Tuesday, May 8, 1990, and the Nuclear Regulatory Commission (NRC) Incident Response Center was notified at 2121 hours0.0245 days <br />0.589 hours <br />0.00351 weeks <br />8.070405e-4 months <br />. The NRC Resident-Inspector was notified at 2220.
Upon achieving hot' shutdown, Mode 3, the stift Supervisor terminated the' l
NOUE at 0800 on Wednesday, May 9, 1990.~
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The State of Illinois was notified of termination of the NOUE at 0813 l
hours on Wednesday, May 9, 1990, and the Nuclear Regulatory Commission (NRC)-
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Incident Response Center was notified of the termination at 0818 hours0.00947 days <br />0.227 hours <br />0.00135 weeks <br />3.11249e-4 months <br />. The NRC L
Resident Inspector was also notified.
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