ML20236Q839

Summarizes 871023 Site Meeting W/Util & Consultants Re Description of Component Cooling Water Design Change Needed to Fix Flow Induced Vibration Problem.List of Attendees & Meeting Handouts Encl

ML20236Q839
Person / Time
Site:	South Texas
Issue date:	11/18/1987
From:	Callan L NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
To:	Goldberg J HOUSTON LIGHTING & POWER CO.
References
NUDOCS 8711200313
Download: ML20236Q839 (23)

Text

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ - _ _ _ - _ - _

In Reply Refer To: @ lgjg7 Dockets: 50-498 50-499 Houston Lighting & Power Company ATTN: J. H. Goldberg, Group Vice President, Nuclear P. O. Box 1700 Houston, Texas 77001 Gentlemen:

This documents a meeting held on October 23, 1987, at the South Texas Project (STP). A list of attendees and handouts used during the meeting are attached.

The principal purpose of the meeting, which was suggested by Houston Lighting & Power (HL&P), was to give HL&P an opportunity to describe the Component Cooling Water (CCW) design change that was needed to fix a flow induced vibration problem.

Subsequent to the meeting on the CCW design change, HL&P and NRC representatives also discussed other topics of interest including recent problems with flanges, bolt tightness and proper compression of gasket material. Lessons learned during startup testing and HL&P's plans to conduct a performance evaluation at the 50% testing plateau were also discussed.

In accordance with Section 2.790 of the NRC's " Rules of Practice," Part 2, Title 10, Code of Federal Regulations, a copy of this letter will be placed in the NRC's Public Document Room.

Sincerely, Original Signed By A. B. Deacli L. J. Callan, Director Division of Reactor Projects

Enclosures:

As stated cc:

Houston Lighting & Power Company ATTN: M. Wisenberg, Manager Nuclear Licensing P.O. Box 1700 '

Houston, Texas 77001 i

RI .D. /D 0 DFS /

GL (dtable:gb

% /l1/87 JM hoan

/// /87 LJC'allan jl/n /87 /gh 8711200313 871118 DR ADOCK0500g8 j

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1 Houston Lighting and Power 2 j

. Houston Lighting & Power Company ATTN: Gerald E. Vaughn, Vice President i Nuclear Operations 1 '

P.O. Box 1700 Houston, Texas 77001 Central Power & Light Company

. ATTN: R. L. Range /R. P. Verret P.O. Box 2121 Corpus Christi, Texas 78403 q City Public Service Board ATTN: R. J. Costello/M. T. Hardt P.O. Box 1771 San Antonio, Texas 78296 .

City of Austin '

ATTN: M. B. Lee /J. E. Malaski P.O. Box 1088 Austin, Texas 78767-8814 Texas Radiation Control Program Director bec to DMB

' bcc distrib. by RIV:

DRP RRI-0PS R. D. Martin, RA RRI-CONST. SectionChief(DRP/D)

RPSB-DRSS RIV File Lisa Shea, RM/ALF R. Bachmann, OGC H. Bundy P. Kadambi, NRR Project Manager.

R. Taylor DRS )

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-CCW HX MEETING NOVEMBER 23, 1987, ATTENDANCE' l

1 M.-A. McBurnett. HL&P/SupportLicensingMgr.  !

J. T. Westermeier -HL&P Project Mgr. j R. W..Chewning HL&P Project Mgr.

Ken Kolber Westinghouse Principal Engineer ]q Ulhas Pati . Wwestinghouse STP Support Eng. 1a S.-M. Dew HL&P Ops. Support Mgr. 1 V. R. Albert HL&P Supervisor, Prog. Engr. {

J. H. Goldberg HL&P Group VP,- 3 J. P. Clausner NRC French CEA  !

D. R. Carpenter NRC. Senior Resident-Inspector, Operations  ;

J. L. Milhoan- NRC-RIV,-Director, Division of Reactor-Safety l J. Rajan NRC/NRR EMEB/NRR I

J. E. Bess .NRC Resident Inspector _, 0perations. l E. Hildebrand NRC D. L'. Garrison NRC Resident Inspector, Const'ruction L. D. Gilbert NRC Reactor Inspector C. E. Johnson NRC Senior Resident Inspector, Construction .

G. L. Parkey HL&P Plant Engineering Mgr. .

W. H. Kinsey 'HL&P Plant Mgr. .

Mark Wiesenburg .HL&P Engineering & Licensing Mgr. ,

J. E. Geiger HL&P GM Nuclear. Assurance-T. E. Underwood HL&P C0&A Manager, NP0D W. F..-Jocher HL&P Chem. Support Supervisor- .

l Bruce D. Moreton BEC Unit'1 Engr..Mgr. ')

G. E. Vaugh HL&P' Nuclear Operations VP j l Micheal Berg HL&P Engineering j l

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HL&P 1000A(3 86) ,

OFFICE MEMORANDUM To . ' Distribution- October 07, 1987 from J H Goldber ,

Subject SOUTH TEXAS PROJECT ELECTRIC' GENERATING STATION i COMPONENT COOLING WATER SYSTEM HEAT EXCHANGER REPAIRS J LESSONS LEARNED

-W The activities associated with repairing the subject heat- 1 exchangers, following. failures on both Units 1 and.2,.have gen-- .

-erated a number of-new issues. The purpose.of-this~ memo is to  !

identify some needed programmatic adjustments to provide for a .i better planned,.better disciplined, and more effective. response for.the handling of certain types of; equipment malfunctions or failures. j Plant installed equipment which i~s either safety related or es.sential to_the reliable generation of electric power must.be maintained in a manner consistent with its importance. Clearly, there are any number of. maintenance or repair activities.which,-

when performed on.such critical equipment,.do not pose'a major.

threat.to equipment integrity. . There.are, however, a limited number of activities that, owing to their infrequent utilization and'their complexity,. require that they be' carefully. thought out, proceduralized, and executed with a high degree of quality.

This applies to both organizations responsible for performing the work (Engineering, Construction, or Operations Maintenance) as well as Quality Control. I-have taken the' liberty'of identi-fying the kinds of activities that fall under this category.

1. Welding Operations All welding must be pro-ceduralized with qualification of both procedures and welders in accordance with code requirements and our QA Program requirements. Welds on exotic materials (Inconel, Monel, Aluminum' Bronze, Titanium, and Admiralty Metal) and/or welds being performed on any material in confined spaces requiring mirrors or difficult physical posturing by the welder, require welder qualification on a mock-up.

2. Adding material by electroplating, hot dip, spraying, or plugging

3. Removing material by cutting, milling, grinding, machining, drilling, or boring

4. Heat treatment and/or stress relieving l 5. Brazing or. soldering

7"f*

Houston Lighting & Power Company l:

OFFICE MEMORANDUM j

. To Page 2 October 07, 1987 from J H Goldberg subject SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION COMPONENT COOLING WATER SYSTEM HEAT EXCHANGER REPAIRS LESSONS LFARNED I

In each instance when-safety related or important to the generation of electric power equipment sustains a major failure wherein the repairs will likely involve the types of  ;

activities listed above, the following should occur.. j Units 1 And 2 A. W,H Kinsey and S M Dew meet to decide which engineering organization (Technical Support or Operations Support) will be in technical charge of investigation and repair B. . Assign a knowledgeable engineer by name'to take

- personal charge.of investigation and repair activities including preparation of reports and' procedures Unit 2 Only M R Wisenburg to undertake B.'above The use of vendors' expertise to assist in the performance of complex investigations of equipment failure and repair.is often desirable. Vendor representatives, however, are not ,

always as knowledgeable as one might think and generally are far i less disciplined in the exacting requirements of nuclear-power. 1 One should not blindly follow vendors' suggestions but rather  :

consider them carefully in deciding what it is that makes sense. j We must at all times stay in compliance with the requirements of- )

our construction permit for Unit 2 and our operating license for Unit 1, as well as protecting our investment.

I expect each of you to meet these work guidelines in the- i performance of your respective duties.

JHG/aks j

Distribution .l l

I Messrs G E Vaughn W H Kinsey J T Westermeier M A Ludwig  !

J E Geiger G L Parkey ,

S M Dew C McIntyre M R Wisenburg T J Jordan J D Green i

)

CCW Heat Exchanger Performance Program

1) Operation of Heat Exchanger l

i a) Chemical Dispersant / Biocide / Corrosion Inhibitor b) Rotate heat exchangers as necessary to minimize bacteria growth c) Mechanically clean based on performance trends 4

2) Heat Exchanger Performance Monitoring a) Baseline test prior to 30% power b) Annually or as indicated by performance of model side stream heat exchanger - -

)

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; , : .' . . . t 501 Plateau Operations Performance Evaluation

. I.

Review startup and testing record from issuance'of full power license to'.

50% plateau to assure

.(1) 'that root causes of problems h' ave.been properly addressed (2) that work load is under control and.will:not-impact proper; attention to operation, '

(3) .that employees are demonstrating a high level of professionalism.

and are progressing on the experience curve.

II.

Based on STP' current experience and any recent. industry events, ensure.

i I remainder of the power ascension program has.been. properly planned and scheduled.

III. Review progress of meeting NRC' commitments.

MEASUREMENTS A. Performance Indicators B. NRC Inspector (s) Evaluation C. Management Observation NRC INVOLVEMENT I. Review STP's observations and planned program. adjustments and' provide' NRC input. '

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