RBG-30602, Unit 1 Startup Test Rept (Suppl 11)

Unit 1 Startup Test Rept (Suppl 11)

ML20245L261
Person / Time
Site:	River Bend
Issue date:	04/27/1989
From:	Booker J GULF STATES UTILITIES CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
RBG-30602, NUDOCS 8905050347
Download: ML20245L261 (6)

Text

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t GULF STATES UTILITIES COMPANY RIVER BEND STATION - UNIT 1

.STARTUP TEST REPORT (SUPPLEMENT 11)

APRIL 27, 1989 t

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f 890505o347 890427 PDR ADOCK 0500o458 PDC

t Startup Test Report - Supplement 11 The River Bend Station - Unit 1 Startup Test Program was concluded on June 16, 1986. This supplemental report provides the current status of open test exceptions from'the January 27, 1989 supplement of the Gulf States  ;

Utilities Company, River Bend Station - Unit 1, Startup Test Report. Since 1 the January 27, 1989 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 i lower. Any level 1 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 consistent with the treatment of all test criteria referenced in the initial Startup Test Report. All open test exceptions were evaluated 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: . Temperature calibration problems were discovered as a result of B0P 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 calibration work is being worked as manpower permits. This level 2 exception.was evaluated as not impacting .. safe, full ' power operation.

STATUS: Open

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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 perform the retest. This exception has been determined 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 recalibrates. 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 calibration changes. A Modification Request (MR) is being processed to change applicable vendor documentation.

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

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ST-30C Recirculation System Perfomance-TE 3: The Flow Control Valve mismatch that existed was reduced from 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 Valve mismatch. A retest procedure has been drafted by 'on-site GE personnel. This level 2 test exception does not impact safe, full power operation.

STATUS: Open ST-95 Emergency Response Information System

'TE 3: Module SD-10 for performing scram timing failed. Work requests for correcting the problem was completed. However, this module 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, full power operation.

STATUS: Open 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, 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 failed to open. I 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 L

refueling outa,e. The test data was reviewed and found acceptable for continue safe, full power operation (downgraded to level 2) by S&W/NuPL.

STATUS: Open L

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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 scheduled 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 safe, full power. operation.

STATUS: Open ST-104 ESF Area Cooling TE 2: Measured ESF room temperature in the HPCS, RCIC, RHR A RHR B, 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 t.

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l g.... , l a a s eos 2o r cisw 4 AREA CODE 504 635 6094 - 346 8651 1

April 28, 1989 RBG- 30602 File Nos. G9.5, G9.25.1.5 U. S. Nuclear Regulatory Commission Document Control Desk E Washington, D.C. 20555 Gentlemen:

River Bend Station - Unit 1 Docket No. 50-458 Enclosed is- Supplement 11 to the Startup Test Report for River Bend Station - Unit 1. This report covers the period through April 27, 1989.

This information 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, >

l E~ bd9 J. E. Booker Manager-River Bend Oversight River Bend Nuclear Group Di JEB/LAE/RJf/MSF/ch Enclosure cc: U. S. Nuclear Regulatory Commission i Region IV 611 Ryan Plaza Drive, Suite 1000 Arlington, TX 76011 I

NRC Resident Inspec' tor P.O. Box 1051 St. Francisville, LA 70775 Mr. Walt A. Paulson Project Manager, River Bend Station A

Document Control Desk , g Washington, D.C. 20555 4