ML20207N856

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Responds to NRC Re Violations Noted in Insp Rept 50-456/88-13.Corrective Action:Util Will Submit Change to Tech Specs to Modify Sections 4.0.3 & 4.0.4,per Generic Ltr 87-09
ML20207N856
Person / Time
Site: Braidwood Constellation icon.png
Issue date: 07/15/1988
From: Bliss H
COMMONWEALTH EDISON CO.
To: Davis A
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
4923K, GL-87-09, GL-87-9, NUDOCS 8810190421
Download: ML20207N856 (2)


Text

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Commonwealth Edloon O L'

. D one FrW Neond Pim, Chicago, IWs

. O AMm N#y to: Pod Omco Box 76T~

CNeago,libros 60690 0767 July 15, 1988 Mr. A. Bert Davis Regional Administr6 tor U. S. Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, IL 60117

SUBJECT:

Braidwood Station Unit 1 Response to Inspection Report No.

50-456/88-013 NRC_Dackti_Noa. 50-4M i

REFERENCE:

(a) W. L. Forney letter to C. Reed dated June 15, 1988 3

Dear Mr. Davis:

This letter is in response to the inspection conducted

! by Messrs. T. M. Tongue, T. E. Taylor, et. al. on April 10 through 1

May 28, 1988 of activities at Braidwood Station. Reference (a) indicated that certain activities appeared to be in violation of NRC requirements. Our response to Violation Item a is enclosed.

Violation Item b did not require a response, i Should you or your staff have any questions please call

, this office.

m J']

H. E.s Bliss Nucle r Licensing Managet

/kij Encl.

cc: NRC Resident Inspector - Braidwood NRC Document Control Desk 4923K g i\

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COMMONWEALTH EDISON COMPANY RESE0 HSE TO INSPICIIDN REPORT 456/83_013.

VIOLATION (456/88013-01)

Technical Specification 3/4.3.1, "Reactor Trip System Instrumentation " lists the trip instrumentation that must be operable in Table 3.3-1. Operability is verified by the surveillances listed in Table 4.3-1. Table 4.3-1. Item 2 requires that the Power Range, neutron Flux High Setpoint incore-excore calibration be performed quarterly. Note 6 requires that the power level be greater than 75% of rated thermal power.

Contrary to the above, the Unit i reactor was operattd at a power level in excess of 75% beginning approximately on May 10, 1988, for a period of over 13 days without a timely calibration of the Power Range High neutron Flux Trip Setpoint. The latest allowable date

for performance of this calibration in accordance with the quarterly periodicity was March 13, 1988.

RESE0NSE Commonwealth Edison acknowledges that the Unit i reactor was operated above 75% power which is the condition required to perform the surveillance of Technical Specification 3/4.3.1 Table 4.3-1 Item

2. We believe our pursuit of the performance of the surveillance was done so in a safe, conservative manner based on our view of the Technical Specifications. ,

CORRECIIVILACT10lLTAKEN_AND_RESULTSlCHIEVED Unit i reactor power was reduced to below 75% on May 27, 1988, placing the unit below the power threshold of the Technical Specification.

CORRECTI0!LACTI0lLIAKEN_T0_AYOID_IURTIiER_ VIOLATION Braidwood will submit a change to its Technical Specifications.

This change will modify Technical Specification 4.0.3 and 4.0.4 in a manner outlined in Generic Letter 87-09. The purpose of this change will be to clarify these two specifications which should avoid future confusion in their application.  ;

DATE_0E_EULL_COMELIANCE The proposed Technical Specification change will be submitted to NRR by September 30, 1988. Full compliance will be achieved upon implementation of the license amendment.

4923K

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