ML19270G378

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Forwards LER 79-009/03L-0
ML19270G378
Person / Time
Site: Quad Cities Constellation icon.png
Issue date: 05/11/1979
From: Kalivianakis N
COMMONWEALTH EDISON CO.
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML19270G379 List:
References
NJK-79-179, NUDOCS 7906060240
Download: ML19270G378 (1)


Text

Commonwealth Edison b Ouad Cities Nuclear Power Station 22710 206 Avenue North Cordova, lilinois 61242 Telephone 309/654-2241 NJ K-79-179 , .

May 11, 1979 J. Keppler, Regional Director Office of Inspection and Enforcement Region lil U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137

Reference:

Quad-Cities Nuclear Power Station Docket No. 50-254, DPR-29, Unit 1 Appendix A, Sections 3.1 (Table 3.1-1) and 6.6.B.2.a Enclosed please find Reportable Occurrence Report No. RO 79-09/03L for Quad-Cities Nuclear Power Station.

.This report is submitted to you in accordance with the requirements of Technical Specification 6.6.B.2.a, as a reactor protection system setting which was found to be less conservative than established by the Technical Specifications.

Very truly yours, COMMONWEALTH EDISON COMPANY QUAD-CITIES NUCLE R POWER STATION

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, <4/#et N. J. Kalivianakis Station Superintendent dJK/JCV/cag cc: R. F. Janecek 1 7 1979 Roor 5 79060009-40, l ,

, , .,

MSIV Ll411T SWITCH TRIP POSITIONS INBOARD VALVES SCRAM CHANNEL "A" SCRAM CHANNEL "B" valve number as found corrected  % error as found corrected  % error 2-203-1A 14.5% 9.6% 4.5% 14.4% 8.2% 4.4%

2-203 1B 18.0% 9.4% 8.0% 16.0% 8.4% 6.0%

2-203-1C 11.3% 8.8% 1.3% 13.5% 8.5% 3.5%

2-203-10 16.0% 9.8% 6.0% 12.7% 8.8% 2.7%

OUTBOARD VALVES SCRAM CHANNEL "A" SCRAM CHANNEL "B" valve number as found corrected  % error as found corrected  % error 2-203-2C 20.8% 8.5% 10.8% 11.7% 6.9% 1.7%

2-203-20 4.9% 8.9% 0.0% 6.0% 7.9% 0.0%

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