View source for U-601298, Ro:On 881026,Tech Spec 3.0.3 Entered Due to Declaring Control Room Ventilation Train a Inoperable.Caused by Faulty Flow Transmitter.Reactor Power Was Reduced & Calibr on Train a Flow Transmitter Performed

{{Adams
| number = ML20205M773
| issue date = 10/27/1988
| title = Ro:On 881026,Tech Spec 3.0.3 Entered Due to Declaring Control Room Ventilation Train a Inoperable.Caused by Faulty Flow Transmitter.Reactor Power Was Reduced & Calibr on Train a Flow Transmitter Performed
| author name = Holtzscher D
| author affiliation = ILLINOIS POWER CO.
| addressee name = 
| addressee affiliation = NRC OFFICE OF ADMINISTRATION &amp; RESOURCES MANAGEMENT (ARM)
| docket = 05000461
| license number = 
| contact person = 
| document report number = U-601298, NUDOCS 8811030280
| document type = REPORTABLE OCCURRENCE REPORT (SEE ALSO AO LER), TEXT-SAFETY REPORT
| page count = 2
}}

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  .. og U-601298 R100-88(10-27)-G 1N.150 ILLIN0/8 POWER COA 1PANY CtrNTCN PCw(R ST ATION. P.o. 801 674. CliNTON. ittiNois 61727 October 27, 1988 U.S. Nuclear Regulatory Commissien Document Control Desk Washington, D.C. 20555

==Subject:==
Clinton Power Station Nop fication of Unusual Event Dear Sir Please find attached a summary report of the "Notification of Unusual Event" which occurred at Clinton Power Station on October 26, 1988. Thio summary report is submitted pursuant to Appendix 1 of NUREC 0654 (Revision 1) and Clinton Power Station Emergency Plan Implementing Procedure AP-03.
If you have any questions cencerning this summary report, please contact me at (217) 935-8881, extension 3408 Sincerely yours, 9.7./
D. L. Holt scher Acting Man 1ger Licensing and Safety VLY/krm Attachment ce: Regional Administrator, Region III, USNRC W. Snell, Chief Emergency Preparedness Section KRC Clinton Licensing Project Manager NRC Resident Office Illinois Department of Nuclear Safety g
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* I S811030280 esto;7
{DR    ADOCK ON00461 PDC

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Clinton Power Station                            *
                                                  'otification of Unusual Event i
on Wednesday, October 26, 1988, at 0650 hours, a Notification of Unusual Event (NOUE) was dec1kred in accordance with Emergency Plan Implementing      ,
Procedure EC-02 Emergency Classification. This procedure requires that        I an NOUE be declared if a loss of any Engineered Safety Feature (EST)          ;
occurs requiring plant shutdown due to CPS Technical Specifications.          l Clinton Power Station was operating at approximately 93% power in hode 1.
l On Wednesday, October 26, 1988, at 0410, Technical Specification 3.0.3        ,
was entered due to declaring Control Room Ventilation (VC) train A            !
inoperabie. Train A was declared inoperable due to a faulty flow              i transmitter. Train B was declared inoperable on 10/22/88 due to the           !
minimum outside air damper being failed in the closed position.               l l
At 0650 the NC' ' was declared. The State of Illinois was notified at         !
0652; the NRC 'sucident Response Center was notified at 0706; and the NRC     l Resident Inspector was notified at 0650.
The plant responded by reducing reactor power and performing calibration      t on train A flow transmitter. Reactor power reached approximately 48%.         !
Following partial performance of surveillance 9070.01 for post maintenance testing Train A was declared operable.                            ,
The Shif t Supervisor terminated the NOUE at 1043. The State of 111 fools ,
was notified of the termination at 1049; the NRC Incident Response            r Center was notified at 1050; and the NRC Resident Inspector was notified      ;
at 1043.                                                                      f I
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