RBG-29153, Suppl 9 to River Bend Station Unit 1 Startup Test Rept

Suppl 9 to River Bend Station Unit 1 Startup Test Rept

ML20205P463
Person / Time
Site:	River Bend
Issue date:	10/13/1988
From:	Booker J GULF STATES UTILITIES CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
RBG-29153, NUDOCS 8811080143
Download: ML20205P463 (6)

Text

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1 GULF STATES UTILITIES COMPANY RIVER BEND STATION-UNIT 1 V

STARTUP TEST REPORT (SUPPLEMENT 9) 13 OCTCBER 1988 I

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9 Startup Test Report - Supplement 9 The River Bend Station - Unit 1 Startup Test Program Nas concluded on June 16 1986. This supplemental report provides the current status of open test . exceptions from the July 18, 1988 supplement of the Gulf States Utilities Company, River Bend Station -

Unit 1, Startup Test Report. Since the July 18, 1988 report, no test exceptions have been closed and ten open test exceptions remain.

All open test exceptions are categorized as affecting level 2 criteria or lower. Any level I criteria failures referenced in previous supplements were downgraded to level 2 criteria as a result of appropriate engineering analysis and are considered level 2 criteria in this report. This is consistenc with the treatment of all test criteria referenced in the initial Startup Test Report. All open test exceptions were evalueted and approved by the on-site review committee for continued, safe, full power operation of River Bend Station - Unit 1.

Currently, the test exceptions are assigned to the individual system engineers to which the exceptions are most applicable. It is believed that each engineers' knowledge of the system will aid in expediting the closure of the test exceptions.

Page 1 of 4

, ST-13 Process Computer TE 12: Teniperature calibration problems were discovered as a' result of BOP testing. These problems are still in the process of being corrected. Testing will be completed upon corrective maintenance on RTD calibration problem. Instrumentation and Controls calibiation work is being worked as manpower permits.

This level 2 exception was evaluated as not impacting safe, full power operation.

STATUS: Open ST-22 Pressure Regulator TE 22: Pressure regulator failed level 2 criteria for incremental regulation. This exception will require retest, and a test procedure has been drafted by on-site GE personnel which will perfom the retest. This exception has been detennined not to impact safe, full power operation.

STATUS: Open ST-23A Water Level Setpoint, Manual Feedwater Flow Changes TE 19: Results of feedwater study by GE nearly complete to determine required modifications (if any) to conduct retest. Retest is required due to flow transmitters being recalibrated. A retest procedure for this test exception has been drafted by on-site GE personnel. This level 2 exception was evaluated as not impacting safe, full power operation.

STATUS: Open ST-25C/D Main Steam Line Flow Instrumentation TE 3: The elbow tap flow versus delta P curves are not within +5% of the design curves. Elbow tap flow data was taken during ~ power ascension following the Refueling Outage (RF-1). Engineering is evaluating field data to determine required main steam line flow instrumentation calibr :. ion changes. A Modification Request (MR) is being processed to change applicable vendor docurtntation. General Electric has evaluated this data and agreed that this level 2 test exception does not impact safe, full power operation.

STATUS: Open Page 2 of 4

ST-300 Recirculation System Perfonnance .

TE 3: The Flow Control Valve mismatch that existed was reduced from i 14% to 7% and the core and drive flow shortfalls have been resolved. GE and GSU evaluation is continuing on resolving the M ratio below design acceptance for Loop B problem, Retest will be necessary to satisfy the disposition of the M ratio  :

problem due to the reduced Flow Control Yuive mismatch. A retest procedure has been drafted by on-site GE personnel.

This level 2 test exception does not impact safe, full power i operation. '

STATUS: Open ST-95 Emergency Response Infonnation System TE 3: Module 50-10 for performing scram timing failed. Work requests for correcting the problem was completed. However, this module 4

failed again during the retest. Plant Maintenance and Engineering personnel have not yet determined the cause of the second failure. This level 2 exception does not impact safe, 4

full power operation.

. STATUS: Open i

ST-100 Piping Vibration TE 16: Vibration data for MSS Points T42 and T220 was not available  !

- due to failure of ERIS data collection panel 113. Panel 113  !

has been repaired. Lanyard pots for MSS-T220 were refurbished  ;

and calibrated during the first refueling outage. This level 2 {

test exception does not impact safe, full power operation.  :

STATUS: Open

TE 20

During generator load rejection (ST-27) points MSS T-42Z, f T-235X, Y, & Z, & FWS T-144X failed level I criteria. MSS T-42X and FWS T-144Y and Z failed level 2 criteria. No data  !

was available for condensate test point T/S-525 since CNN-A0V ,

119 failsd to open. This test exception is open pending .

retest. Computer points are available. The lanyard pots for (

! points MSS-T235, CNM-T525 and FWS-T144 were refurbished and  !

calibrated during the first refueling outage. The test data was reviewed and found acceptable for continued safe, full  !

power operation (downgraded to level 2) by S&W/NuPE. j

, STATUS: Open  ;

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TE 21: Test points MSS T-200, FWS T-39, SVV T-39, and T-85 were not operable during generator load rejection. Requires repair to ERIS data collection panel 107. This work was not schedu?ed for the refueling outage, however, the piping vibration sensors in the field were checked out. This level 2 test exception remains open for retest and does not impact s a fri, full power operation.

STATUS: Open ST-104 ESF Area Cooling TE 2: Measured ESF room temperature in the HPCS, RCIC, RWR A RHR 8 RHR C, exceed level 3 criteria of 90'F. No further progress has been made since the last supplement update. This level 3 test exception does not impact safe, full power operation.

STATUS: Open Page 4 of 4

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• 4 815 f al U6H'1 October 31, 1988 RBG- 29153 File Nos. G9.5, G9.25.1.5 U. S. Nuclear Regulatory Commission Document Control Desk Washington, D.C. 205f5 Gentlemen:

River Bend Station - Unit 1 Docket No. 50-458 Enclosed is Supplement 9 to the Startup Report for River Bend Station - Unit 1. This report covers the period through October 13, 1988. This informa tion is provided pursuant to Technical Specifications 6.9.1.2 and 6.9.1.3 and Regulatory Guides 1.16 and 1,68. An additional report will follow within three months pursuant to Technical Specification 6.9.1.3.

Sincerely.

. I WM /

J. E. Bocker Manager-River Ber.d Oversight River Bend Nuclear Group JEB/_

vAE/ fVSF/ch Enclosure cc: U. S. Nuclear Regulatory Conmission Region IV 611 Ryan Plaza Drive, Suite 1000 Arlington, TX 76011 NRC Resident Inspector P.O. Box 1051 .

St. Francisville, LA 70775 Mr. Walt A. Paulson Project Manager, River Bend Station Document Control Desk Washington, D.C. 20555 pd t \