IR 05000498/1994016

Ack Receipt of Informing NRC of Steps Taken to Correct Violations Noted in Insp Repts 50-498/94-16 & 50-499/94-16

ML20149F161
Person / Time
Site:	South Texas
Issue date:	08/04/1994
From:	Gwynn T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
To:	Cottle W HOUSTON LIGHTING & POWER CO.
References
NUDOCS 9408100017
Download: ML20149F161 (5)

Text

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l J. Callan Resident Inspector ,

Branch Chief (DRP/A) Leah Tremper, OC/LFDCB, MS: MNBB 4503 [

MIS System DRSS-FIPB <

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RIV File Project Engineer (DRP/A)  ;

R. Bachmann, OGC, MS: 15-B-18 Branch Chief (DRP/TSS) ('

P. Goldberg F. Westerman

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l c o mp a ny Sout h Temas Project 1:lectric Generating station P. O. Bom 289 Wadsworth. Teams 774 83 .

Ilouston Lighting & Power

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July .'8, 1994 i ST-HL-AE-4836 l File No.: G02.04

' l 10CFR2.201 ,

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l U. S. Nuclear Regulatory Commission Attention: Document Control Desk l Washington, DC 20555 JUd 2 i i

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South Texas n oject l Unit 2 l Docket No. STN 50-49S l Reply to Notice of Violation 9416-01 '

Penardino Failure to Write a Station Problem P. aport

Houston Lighting & Power has reviewed Notice of Violation 9416-01 dated June 17, 1994, regarding a f ailure to write a Station Problem Report when a loose hold down stud nut was identified, and submits the attached reply.

l l If there are any questions regarding this matter, please contact S. M. Head at (512) 972-7136 or me at (512) 972-8664.

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. Groth Vice President, Nuclear Generation MAC/esh Attachment: Reply to Notice of Violation 9416-01 WMs7 Pr oju t Manage on Behalf of the Participanu in .hc N.uih ~Irmas Projnt

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Ilouston Lighting & Power Company South Texas Project Elecide Generating Station ST-HL-AE-4836 File No. : G02.04 Page 2 '

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L. J. Callan Rufus S. Scott Regional Administrator, Region IV Associate General Counsel U. S. Nuclear Regulatory Commission Houston Lighting & Power Company i Gil Ryan Plaza Drive, Suite 400 P. O. Box 61867 '

Arlington, TX 76011-8084 Houston, TX 77208 Lawrence E. Kokajko Institute of Nuclear Power Project Manager Operations - Records Center l U. S. Nuclear Regulatory Commission 700 Galleria Parkway ,

Washington, DC 20555 13H15 Atlanta, GA 30339-5957 l David P. Loveless Dr. Joseph M. Hendrie Sr. Resident Inspector 50 Bellport Lane '

c/o U.S. Nuclear Regulatory Com Bellport, NY 11713 P. O. Box 910 Bay City, TX 77404-910 , R. Newman, Esquire Richard A. Ratliff ,

Newman, Bouknight & Edgar, P.C., Bureau of Radiation Control l STE 1000, 1635 L Street, Texas Department of Health  ;

1615 L Street, West 49th Street Washington, DC 20036 Austin, TX 78756-3189 )

K. J. Fiedler/M. T. Hardt U. S. Nuclear Regulatory Com City Public Service Attn: Document Control Desk P. O. Box 1771 Washington, D.C. 20555 1 San Antonio, TX 78296 l C. Lanier/M. B. Lee Joseph R. Egan, Es City of Austin Egan & Associates, Electric Utility Department 2300 N Street, NW 721 Barton Springs Road Washington, DC 20037 i Austin, TX 78704 G. E. Vaughn/C. A. Johnson Central Power and Light Company P. O. Box 2121 Corpus Christi, TX 78403 l l

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Attachment ST-HL-AE-4836 Page 1 of 2 Reply to Notice of Violation 9416-01 Statement of Violation:

Criterion XVI, Appendix B of 10 CFR 50, requires that in the case of significant conditions adverse to q,uality, measures shall assure that the cause of the condition is determined and corrective action taken to preclude repetitio South Texas Project Station Procedure OPGP03-ZX-0002,

" Corrective Action Program," Revision 4, requires that, "any person associated with STP who identifies a deficiency or  !

significant deficiency is responsible for initiating a Station j Problem Report in accordance with the requirements of this procedure."

Contrary to the above, the licensee did not write a station

' problem report when a loose hold down stud nut (a significant potential precursor to stud failure) was identified on April 14, 1994, on the 6L fuel injection pump of Standby Diesel Generator Number 2 This is a Severity Level IV violation (499/9416-01).

II. Houston Liahtina & Power's Position:

Houston Lighting & Power concurs that the violation occurre It should be noted that the f ailure to write a Station Problem Report occurred around March 28, 1994, when a loose hold down stud was found on the 2L fuel injection pump on Standby Diesel Generator 22, rather than on April 14, 1994 with cylinder 6L as stated in the violatio III. Reason for Violation: l l

A loose stud / nut was discovered on the 2L fuel injection pump during maintenance on Standby Diesel Generator 2 The Maintenance Crew Supervisor was notified, who instructed the l crew to document the deficiency in the work packag In !

addition, the Crew Supervisor intended to initiate a Station  !

Problem Report to document the deficienc However, the Crew ,

I Supervisor failed to initiate the Station Problem Repor When a similar problem occurred with the fuel injection pump I on cylinder 6L on April 14, 1994, both deficiencies were documented on a single Station Problem Repor The cause of this deficiency was human performance error. A Station Problem Report was not initiated to document the loose hold doan stud / nut on fuel injection pump 2L around March 28, 199 IV. Corrective Actions:

i The bolts on fuel injection pump 2L were replaced and properly '

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Attachment

) ST-HL-AE-4836 Page 2 of 2 l

The following actions have been taken or will be taken to prevent recurrence:

1 The importance of immediate Station Problem Report

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generation has been discussed with the crew supervisor j I involved in this even . The importance of immediate Station Problem Report .

generation after discovery of a deficiency has been

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reinforced with the Maintenance managers and all but five i supervisor This action will be completed by August 1, i

1994, This event will be included in the material for the next Human Performance Day scheduled in the fall of 199 l The hollow studs have been replaced with the new solid i

studs on the Unit 2 Standby Diesel Generators and on two I of the three in Unit Installation of the solid studs

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in the remaining Unit 1 Standby Diesel Generator will be  !

completed during the train outage scheduled for the week'

of July 25, 199 ; Date of Full Compliance:

Houston Lighting & Power is in full complianc ,

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i Ib-94\%4-194,001

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