ML20084S370

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Ro:On 761203,info Received Indicated That Rod Worth Minimizer (RWM) Operability Requirements Should Be Changed from 10% to Below 20% Rated Power.Caused by Review of Rod Drop Accident Analysis
ML20084S370
Person / Time
Site: Quad Cities Constellation icon.png
Issue date: 12/03/1976
From: Kalivianakis N
COMMONWEALTH EDISON CO.
To: Jackiw N, James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20084S364 List:
References
NJK-76-447, NUDOCS 8306160707
Download: ML20084S370 (1)


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Telephr,ne 302/6s4-2241 NJ K-76-fd47 i

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Region III, Attention:

Mr. N. Jackiw Il

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occember 3, 1976 P

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J, K ppler, Regional Director I

Office of inspection and Enforcement i

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U.S. Nuclear Regulatory Comission 799 RoosovoIt Road Glen Ellyn, filinois 60137 R3forence:

Quad-Cities Nuclear Power Station, Units I and 2 Docket No. 50-254. OPR-29, and 50+265, DPA-30 Appendix A Sect ion 3.3.B.3 b,.6.6.B.I.h.

Dear Mr. Keppler:

i The purpose of this letter is to provide you with notification of a Reportable Occurrence as required by Technical Specification 6.6.D.1 within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of the

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recurrcnce.

Preliminary information received by the station Iridicates that the rod worth rainiraizer (RW.) operability requirement, thould be changed to require Ri!M operability below 20% rated poser.which currently stand J'

has resulted from review of the requirements implied in the flod Drop AccidencThis change i

(RDA) cnalysis as changed by~ the Generic Reload Application for 6x8 Fuel 1

1 HE00-20360 Supplement 3

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'rdars have been issued to operating personnel to require Riat operability, or I

a qualified ver*fier after the first twelve rods, below lot power, effective Deca.ber 3, 1976.

I This occurrence was discussed by telephone with Mr. W. Jackiw of your office on t

Dectmber 3,1976.

Further inforuction will be provided by Reportable Occurrence Report Ro 50-254/76-35 this cccurrence.

which will be submitted within l's days of the date of bry truly yours, 4

1)HH0fNEALTH EDISON COMPANY IUAD-CITIES NUCLEAR POWER STATION Y~G F

kJ. Kallvionakis Bctlcn Superintendent pK/Gs/vmb

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3r C.A, Abrell 8306160707 761216

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