ML20196C164

Independent Assessment & Analysis, Monthly Progress Rept for Period Ending 880131

ML20196C164
Person / Time
Site:	Browns Ferry, Mcguire, Sequoyah, McGuire, 05000000
Issue date:	02/04/1988
From:	CALSPAN CORP.
To:	NRC
Shared Package
ML20196C161	List: ML20196C159 ML20196C164
References
CON-NRC-05-86-168 P-C6177-5, NUDOCS 8802120272
Download: ML20196C164 (8)

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INDEPENDENT ASSESSMENT AND ANALYSIS Monthly Progress Report P-C6177-5 For the Period Ending January 31, 1988 (U.S. NRC Contract NRC-05-86-168)

Prepared for U.S. Nuclear Regulatory Comission Washington, DC 20555 February 4, 1988 26 Cg O gR 212 P

FRANKUN RESEARCH CENTER ommonoranv wem wan VAREY FOAGE CORPCRATE CENTim 2600 MONROE 80VtEVARO NoamistowN PA 19403

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1. INTRODUCTION Table 1 lists the active tasks and the key personnel. Table 2 summarizes the funding and cost status for all tasks. Contract NRC-05-86-186 requires that the cost be calculated on a "total-input" basis, whereas FRC proposes use of the "value-added" basis. Accordingly, Table 2 shows the budget approved on the "total-input" basis and the costs incurred on the "value-added" basis.

A summary of progress on the active tasks during January 1988 is given in Section 2.

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1 Table 1. Key Personnel for Project and Open Tasks S. West, NRC Project Officer (301/492-1220)

S. P. Carfagno, FRC Project Manager (215/666-3070)

T. A. Shook, FRC Assistant Project Manager (215/666-3127)

NRC FRC FRC Task Task NRC Task No. No. Title Contact Leader EL-303 003 EQ Inspection, G. T. Hubbard, Jr. S. P. Carfagno Browns Ferry (301) 492-4825 (215) 666-3070 l

EL-305 005 McGuire RTB D. Hood H. Fishman i Failurc Evalua- (301) 492-8961 (215) 666-3225 tion EL-307 007 Bulletin A. S. Gill S. P. Carfagno Preparation (301) 492-9474 (215) 666-3070 4

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Table 2. Summary Status of All Tasks as of January 31, 1988ill

. Cost (3) Total Cost (3) Incurred Cost (3)

FRC NRC Incurred 10/1/87 Incurred Task lask Amount During Through Ih rough _

Ngu Neu lille Budge 1III AuillariI:11 Jan. 1988 1/31/88 1/31/88 Status 001 M-301 Bolt Analyses $20,735 $20,735 $ 388 $ 1,165 $19,609 Complete 002 [t-302 EQ Inspection 8,913 8,913 - - 7,627 Complete Sequoyah NPS 003 EL-303 EQ Inspection 17,558 17,558 -

7 7 On Hold Browns fer s y 004 EL-304 McGuire RTB 5,048 5,048 - -

4,329 Complete AIT Inspection 005 EL-305 McGuire RIB 32,955(4)(5) 29,380 1.231 15,137 33,323 In Progress failure Evaluation a

if 006 EL-306 Sequoyah Cable Evaluation 94.452 96,334(6) 31 18.369 19,802 Complete 1

007 EL-307 Bulletin Preparation 25,459 25,559 10,886 19,001 19,001 In Progress (1) Some recent non-labor charges (e.g., consultant's fees) may not be included in the amounts shown as cost incurred, as such costs are not recorded until invoices are received.

(2) Total-input cost basis including fee.

(3) value-added cost basis including fee, (4) Amount requested by FRC on August 21, 1987, (5) Additional funding of $7,836 Nas been requested.

(6) Negotiations are under wt- . educe ik amount authorized to the cost incurred.

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2. TASK SUMMARIES 2.1 NRC TASK EL-303 (FRC TASK 003), SUPPORT OF AN EQUIPMENT QUALIFICATION INSPECTION AT BROWNS FERRY NUCLEAR POWER PLANT Description and Progress FRC has been requested to provide two engineers for two weeks to support an equipment qualification inspection of Browns Ferry Nuclear Power Plant.

The Licensee was not ready when the inspection was scheduled.

Plan The inspection will be rescheduled when the Licensee is ready.

Problems None.

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- e i* P-C6177-5 2.2 NRC TASK EL-305 (FRC TASK 005), SUPPORT OF EVALUATION OF McGUIRE REACTOR TRIP BREAKER FAILURE Description Mechanical jamming of a Westinghouse DS-type reactor trip circuit breaker occurred at McGuire Unit 2. A weld between the center-pole lever and the pole shaft was found to have failed. A subsequent inspection of a breaker at the Catawba Nuclear Plant identified lack of fusion and cracking in welds joining the center pole and anti-bounce levers to the pole shaft. FRC is assisting the NRC in determining the cause of the failure and defining the extent of weld defects in the Catawba shaf t. FRC is also providing recommendations for further actions with regard to the DS-type breakers.

Progress FRC submitted a draft report on its metallurgical study of the pole shaft from the Catawba Nuclear Power Plant, which included optical, scanning electron microscope (SEM), and metallographic analyses. The extent of cracking in the center pole lever-to-shaf t and anti-bounce, lever-to-shaf t fillet welds and, hence, the extent of remaining intact welds was defined.

The draft report on FRC's metallurgical study was approved by NRC. FRC is preparing a final report incorporating the recommendations of the interim report, I-6177-5-1, dated September 30, 1987 and the metallurgical studies.

Plan The final report will be completed during this period. Ten (10) copies of the micrographs have been ordered for inclusion in the report.

Problem Additional funding to complete the project was requested in a letter to the Contract Administrator on January 28,1988. In that letter FRC requested an increase in the authorized funding to S37,216.

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2.3 NRC TASK EL-306 (FRC TASK 006), REVIEW OF CABLES IN CONDUITS FOR SEQUOYAH Description 1

The objective of this task is to review the TVA cable program for Sequoyah to assure that cables are adequately designed and meet NRC criteria. Specific efforts will include:

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1. review of additional information received from TVA on September 11, l 1987, and determination of any impacts on previous conclusions reached, l

2. evaluation of the adequacy of the TVA plan for resolving the open cable issues, preparation of requests for additional information  :

(RAI) as appropriate to resolve information deficiencies, and observation of tests, and

3. preparation of material for use in a Technical Evaluation Report (TER) that addresses the evaluation of open cable concerns and the j adequacy of TVA actions to correct the deficiencies. All technical -

bases, conclusions, and recommendations are to be clearly and explicitly stated in the TER.

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FRC has been informed that this task is considered complete.

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Plan Negotiations are under way to reduce the authorized funding to the cost i plus fee incurred. There will be no further technical effort. i

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)' P-C6177-5 2.4 NRC TASK EL-307 (FRC TASK 007), PREPARATION OF BULLETIN ON INSULATICN INTEGRITY OF SILICONE RUBBER INSULATED CABLES Description As a result of the issuance of a 10CFR Part 21 notification on silicone rubber-insulated cables at Sequoyah by TVA, the NRC plans to issue a Bulletin to determine where such cables are in use and to assess the damage to such cables as installed. The scope of the task is to provide technical assistance in defining test methods and procedures for detecting damage to silicone rubber-insulated cables, assessir.g the potential impact of any cable damage on safety, and the development of criteria for the selection, testing, installa-tion, inspection, and acceptance of cables.

Progress On January 19, 1988, a revised draft of a bulletin, along with working documents prepared by consultants W. A Thue and J. B, Gardner, was mailed to N9C. Mr. Gardner's review of a Wyle report on a silicone rubber cable qualification test was also submitted to the NRC.

Plan Provide technical assistance as requested.

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