IR 05000456/1987013

Insp Repts 50-456/87-13 & 50-457/87-11 on 870223-0402.No Violations or Deviations Noted.Major Areas Inspected: Preoperational Test Performance & Startup Test Procedure Reviews

ML20206D901
Person / Time
Site:	Braidwood
Issue date:	04/07/1987
From:	Dunlop A, Mendez R, Vandenburgh C, Wright G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:
Shared Package
ML20206D878	List: IR 05000456/1987013 ML20206D875
References
50-456-87-13, 50-457-87-11, IEB-80-06, IEB-80-6, NUDOCS 8704130456
Download: ML20206D901 (4)

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U. S. NUCLEAR REGULATORY COMMISSION-REGION Reports No. 50-456/87013(DRS);No.50-457/87011(DRS)

Docket Nos. 50-456; 50-457 Licenses No. NPF-59; No. CPPR-133 Licensee: Commonwealth Edison Company Post Office Box 767 Chicago, IL 60690 Facility Name: Braidwood Station, Units 1 and 2 Inspection At: Braidwood Site, Braidwood, Illinois Inspection Conducted February 23 through April 2,1987 Inspector: /N.Eb J /37

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Date'

fC. Va Denburgh L[ f Date Men ez 7

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Date Approved By:

$2G2 Axe G. Wright, Criief h[7/97 _

Test Programs Section Dat'e

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Inspection Summary Inspection on February 23 through April 2,1987 (Reports No. 50-456/87013(DRS);

No. 50-457/870ll(DRS))

Areas Inspected: Routine, announced safety inspection to review actions on previous inspection items (92701); preoperational test performance (70315, 70439,70433); and startup test procedure reviews (72580, 72582, 72300).

Resul ts: Of the three areas inspected, no violations or deviations were identified in the report.

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8704130456 870407 PDR 0 ADOCK 05000456 PDR

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DETAILS 1. Persons Contacted Commonwealth Edison Company (CECO)

• E. E. Fitzpatrick, Station Manager

• P. L. Barnes, Regulatory Assurance Supervisor

• T. W. Simpkin, Regulatory Assurance M. Inserra, TRB Supervisor /PSG

• M. Takaki, Regulatory Assurance

• R. D. Kyrouac, Quality Assurance Superintendent

• L. Kline, Regulatory Assurance ,

• A. J. D' Antonio, Quality Control

• T. J. Lewis, Startup Staff

• J. Gosnell, Quality Control

• R. C. Bedford, Regulatory Assurance Additional station technical, operational, and administrative personnel were contacted by the inspector during the course of the inspectio * Denotes those attending the exit meeting on April 2,198 . Action on Previous Inspection Items (Closed) Open Item (456/85008-05(DRS)): This item concerned the design deficiency of the diesel generator breakers in that Regulatory Guide 1.108, Section C.2.a(8) was not met due to a STP circuit in the breake The licensee has implemented Modification M20-1-86-003 which installed a separate control switch (Normal-Surv. Test) on the

Main Control Board which overrides the STP circuit when the switch is in "Surv. Test." Operating Procedures DG-11, " Diesel Generator Startup," and DG-12, " Diesel Generator Shutdown," had temporary changes added to place the switch in "Sury. Test" prior to starting the DG and in " Normal" after securing the DG. The modification test verified that when the Unit I diesel generators are paralleled to their respective bus and a safety injection signal is initiated, the diesel generator breaker will open, then upon a loss of offsite power the diesel generator breaker will automatically reclose and sequence the ESF loads onto the bus. The inspector has no further concerns and considers this item close (0 pen) Open Item (456/86043-01(DRS))

This item concerned the ability of the Essential Service Water (ESW) pumps to meet the flow and head requirements (24,000 gpm at 180 feet of water) listed in the FSAR. In a letter dated August 5,1986 from Commonwealth Edison to the NRC, the licensee committed to having one Unit 2 ESW pump operable prior to Unit 1 entering Mode Sargent & Lundy Calculation No. SXS-85, Rev. 0, dated November 11, 1985, indicated the minimum capacity for the ESW pumps was 22,723 gpm at 143.8 feet of wate ,

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The inspector finds this information as acceptable in assuring that the ESW pumps meet their design requirement. However, it appears that the required flows listed in the FSAR are incorrect and need to be updated. This item will remain open pending a revision to the FSA (Closed) Open Item (456/86052-06(DRS)): This item concerned ten Safety Injection check valves that failed their leak rate test during BwPT SI-13, " Safety Injection Check Valve Operability and Leakage Test." The licensee has repaired the valves and performed the leak rate tests in Surveillance BwVS 4.6.2.2-1. The inspector

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reviewed the results and finds them acceptable. This item is considered close (Closed) 10 CFR Part 21 Report (456/85002-PP): This item concerned the failure of Parker-Hannafin air line check valves to seat on slow bleedoff of supply air. The licensee has completed testing the replacement check valves using BwVS 800-8, " Main Steam Isolation Valve Instrument Air Check Valve Leakage Test." The inspector reviewed the completed surveillance and concluded that the results are acceptable. This item is considered close (0 pen) IE Bulletin 80-06: This item concerned Engineered Safety Feature (ESF) Reset Controls. The inspector reviewed BwPT EF-10,

" Unit One Engineered Safety Features," and BsPT EF_11 "ECCS Full Flow Test," to verify that components that started or changed positioned on an ESF signal would remain in that condition after the ESF signal was reset. The remaining components to be tested are included in BwPT EF-10, Retest 113. This item will remain open pending inspector review of the completed retes . Preoperational Test Performance The inspector witnessed the performance of portions of the below listed preoperational test procedures in order to verify that testing was conducted in accordance with approved procedures, independently verified the acceptability of test results, and evaluate the performance of licensee personnel conducting the test BwPT CC-50, Revision 0, " Component Cooling" BwPT CV-50, Revision 0, " Chem. Feed and Volume Control-Pumps and Make-up Control" BwPT SI-52, Revision 0, " Safety Injection" BwPT SI-54, Revision 0, "SI Runout Protection Orifices" BwPT SX-50, Revision 0, " Essential Service Water"

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The System Test Engineers (STE) performed their function in a professional manner. They properly utilized operators, instrument mechanics, and additional STEs, who had been briefed on their specific function prior to the test. When problems arose, the STE stopped the test and evaluated the situation prior to continuin No violations or deviations were identifie . Startup Test Procedure Review The inspectors reviewed the below listed startup test procedures against the Final Safety Analysis Report (FSAR), Safety Evaluation Report, applicable Regulatory Guides and Standards, and portions of 10 CFR 5 BwSU AP-30, Revision 1, " Loss of Offsite Power" BwSU NR-39, Revision 0, " Full Power Plant Trip" No violations or deviations were identifie . Exit Interview The inspector met with licensee and contractor representatives denoted in Paragraph I during and at the conclusion of the inspection on April 2,198 The inspector summarized the scope and results of the inspection and discussed the likely content of this inspection report. The licensee acknowledged the information and did not indicate that any of the information disclosed during the inspection could be considered proprietary in natur