05000498/LER-1990-022, Forwards LER 90-022 Which Fully Addresses Violation 9031-1 in 901101 Notice of Violation Re Insps 50-498/90-31 & 50-499/90-31

Forwards LER 90-022 Which Fully Addresses Violation 9031-1 in 901101 Notice of Violation Re Insps 50-498/90-31 & 50-499/90-31

ML20058K078
Person / Time
Site:	South Texas
Issue date:	11/30/1990
From:	Kinsey W HOUSTON LIGHTING & POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
ST-HL-AE-3631, NUDOCS 9012070111
Download: ML20058K078 (3)

LER-2090-022, Forwards LER 90-022 Which Fully Addresses Violation 9031-1 in 901101 Notice of Violation Re Insps 50-498/90-31 & 50-499/90-31

Event date:
Report date:
4982090022R00 - NRC Website

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The Light company P.O. Box 1700 llouston, 'lixas 77001 (713) 228 9211 llouston Lighting & Power.. - -. . 4 , . . - . - . - , - - - - - -

November 30, 1990 ST-HL AE-3631 File No.: C02.04 10CFR2.201 U. S. Nuclear Regulatory Commission Attention:. Document Control Desk Washington, DC 20555 South Texas Project Electric Generating Station g Units 1 and 2 Docket Nos. STN 50 498 and STN 50 499 Response to Notica of Violation 9031 01 (EA 90 164) Regarding Violation of Technical Specification due to Exceeding the Allowable Temperature in the Reactor Coolant System with one of the High Head Safety Injection Pumos Tr oerable Houston Lighting & Power Company has reviewed Notice of Violation

'9031 01~(EA 90 164) dated Novembec 1, 1990. H14P concurs that the cited f violation occurred. The-violation has been fully addressed as the subject of the at: ached Licensee Event Report 90 022, " Violation of Technical Specif:. cation due to Exceeding the Allowable' Temperature in the Reactor-Coolan:. System with one of the liigh Head Safety Injection Pumps Inoperable".

p As in'd icated in the attached Licensee Event Report, IIIAP is in full compliance:and appropriate actions'are being taken to prevent recurrence, aE In addition, HLAP is in the process of implementing an operational

.-improvement plan to improve personnel performance at STPECS. The plan

.. . consists:of-interfacing programs, program-elements and actions-intended to j remove barriers inhibiting organizational performance and to improve the tools

.(hardware, programs ~, processes and proccdures) which have the most.effect on

, . performance. This plan;will be used by all STPEGS departments in achieving a i, '

definitive improvement in performance'and plant materialiconditions. This

' plan is' designed to achieve a steady improvement in performance and will be h continued and modified as appropriate to attain this goal.

M ,o If you should have any questions on this matter, please contact FMr. C. A. Ayala at (512) 972-8628 or myself at'(512) 972-8687.

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W. H. Kinsey J o

Vice President Nuclear Generation

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Attachment:

Licensee Event Report 90-022 (ST-HL-AE-3598)

At/osa.ute 9012070111 901130 A . Subsidiary of llouston industries incorporated

[f PDR ADOCK 05000498 O FDC

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- * 'llouston Lighting & Power Company- r e

• South Texas Project Electric Generating Stat.ion Page 2 cc:

Regional Administrator, Region IV Rufus S. Scott-

' Nuclear Regulatory Commission Associate General Counsel 611 Ryan Plaza Drive, Suite 1000 Houston Lighting & Power Company Arlington, TX 76011 P. O. Box 61867 Houston, TX 77208 Coorge Dick, Project Manager U.S. Nuclear Regulatory Commission INPO Washington, DC 20555 Records Center 1100 circle 75 Parkway J. I. Tapia Atlanta, GA 30339 3064 Senior Resident Inspector c/o U. S. Nuclear Regulatory Dr. Joseph M. Hendrie Commission- 50 Be11 port Lane P.~0. Box 910 Be11 port, NY 11713

-Bay City, TX 77414 D. K. Lacker J. R. Newman, Esquire Bureau of Aadiation Control Newman 6 Holtzinger, P.C. Texas Department of Health 1615 L' Street, N.W. 1100 West 49th Street Washington,JDC' 20036 Austin, TX 78756-3189 R. P. Verret/D.' E. Ward Central Power 6-Light Company P. O. Box 2121 Corpus Christi,.TX- 7840'-a J.-C'. Lanier/M. B. Lee City:of Austini

-Electric Utility Department P;0.:. Box 1088

' Austin, lD( 178767 R.;J.-Costello/M. T.-Hardt City Public Service, Board

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P. O," Box-17711

' San Antonio,"TX 78296 Revised 10/08/90 o

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0 UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION In the Matter )

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Houston Lighting & Power ) Docket Nos. 50-498 Company, et al., ) 50-499

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South Texas Project )

Units 1 and 2 )

r ATPIDAVIT W. H. Kinsey, Jr. being duly ' worn, hereby deposes and says that he is Vice President, Nuclear Generation c4 Houston Lighting & Power Company; that he is duly authorized to sign and file with the Nuclear Regulatory Commission the attached response to NRC Notice of Violation 9031-01 (EA 90-164) "Violatie3n of Technical Specification due to Exceeding the Allowable Temperature in the Reactor Coolant System with One of the High Head Safety Injection Pumps Inoperable"; is familiar with the content thereof; and that the matters set

- forth therein are true and correct to the best of his kno ledge and belief.

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W. Hb Kinsey, Jrp Vice Iresident

- Nuclear Generation SA W ribe a Notary Public in and for The State of Texas this 3 dup and sworn to before me, day of hhVeiSt'R ,1990.

, JOIE A(IAULT 4

. .'1[g3 Notary Public in and for the j _ * *. . . d' State of Texas 9:

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The Light compan llouston Lighting & Power South Teaas Project Electric Generating Station P. O, Bos 289 Wadiworth, Texas 77483 l

!l October 12, 1990 ST HL AE 3598 File No.: 026 i 10CFR50.73 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Vashington, DC 20555 South Texas Project Electric Cenerating Station Unit'l Docket'No. STN 50 498 Licensee Event Report 90 022 Violation of Technical-Specification due to Exceeding the Allowable Temperature in'the Reactor Coolant

. System with one of the Hirh Ilcad Safety Inf ection Pumps Inoperable t':irsuant to 10CIR50.73. Houston Lighting & Power Company (HIAP) submits the attached Licensee Event. Report-(LER 90 022) regarding exceeding the allowable. temperature in the RCS with'one of the H11SI pumps inoperable. This  ;

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event .did'not have any adverse impact on' the health and safety of the public. j

. If you should have any questions on this matter, please contact Mr. C. A. Ayala:at (512) 972 8628 or myself'at-(512) 972-8530.

y J M. A.,McBurnet Manager.

. Nuclear Licensing

.AKK/sgs:

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Attachment:

LER 90 022 - (South Texas , Unit 1)-

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A1/Ln02201,Lol A Subsidiary oillouston Industries incorporated s

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, Ifouston Lighti & P]wer Compan ST.HL AE.3598 South Tern Project Electric Generat ng Station File No.: C26 Page 2 cc:

Regional Administrator, Region IV Rufus S. Scott Nuclear Regul: Lory cone.'ssion Associate General Counsel 611 Ryan Plaza Drive, Suite 1000 llouston Lighting & Power Company

' Arlington,-TX 76011 P. O. Box 61867 llouston, TX 77208 Ceorge Dick, Project Manager U.S. Nuclear Regulatory Commission INPO LVashington, DC 20555 Records Center J. I._Tapia 1100 Circle 75 Parkway Atlanta, CA 30339 3064 Senior Resident Inspector c/o 'U. S. Nuclear Regulatory Dr. Joseph M. llendrie Commission 50 Bellport lane P. O. Box 910 Bellport, NY 11713 Bay City, TX .77414 D. K. lacker i

'J. R. Newman'. Esquire Newman &'lloitzinger, P.C.. Bureau of Radiation Jontrol 1615 L_ Street, N.W.

Texas Department of Ilealth

[ 1100 Vest 49th Street p -Washington, DC 20036 Austin, TX 78756-3189 R.1P._Verret/D. E. Ward Central Power.& Light Company P. O. Box;2121

, ' Corpus _Christi, TX -78403

'J. C. lanier/M. B. Lee t -City of Austin:

r- Electric Utility Department P.O.LBox 1088

-Austin...TX i78767-R. ' J .2 Coste11o/M.L T. Hardt, City-Publi'c Service Board.

P.=0.; Box 1771 San Antonio, TX 78295 p

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=- ..e s e aCT ,4 i m .-- . . a,. . , a, . , . ,, ,,,,. n.. .. , n e i On September 12,1990, Unit 1 was _in the process of performing a plant heatup.

, At approximately 0714 hours0.00826 days <br />0.198 hours <br />0.00118 weeks <br />2.71677e-4 months <br />, Mode 3 was entered.- At approximately 0745 hours0.00862 days <br />0.207 hours <br />0.00123 weeks <br />2.834725e-4 months <br /> RCS cold leg temperature exceeded 375 degrees F. The plant heatup continued with the 1B High Head Safety. Injection (10lSI) pump out of service. This was a violation of Technical Specification 3.5.2 which requires all HHSI pumps to be operable prior to one or more Reactor Coolant System (RCS) cold leg

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temperatures exceeding 375 degrees F. At 0800 hours0.00926 days <br />0.222 hours <br />0.00132 weeks <br />3.044e-4 months <br />, the condition was discovered.- The plant heatup was secured and the 1B HHSI pump was returned to service at 0807 hours0.00934 days <br />0.224 hours <br />0.00133 weeks <br />3.070635e-4 months <br />. The cause of this event was less than adequate supervisory oversight and communication. Appropriate action was taken with' respect to the Unit Supervisor involved. .The Reactor Operator involved in this event was counseled-in regard to his responsibility to be knowledgeable -

of applicable procedural requirements. Expectations of management regarding adherence to procedures and attention to detail will be reviewed with the operators. The requirements for_ control of lutSI pumps during heatup will also be reviewed with the operators. -

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911QRIPTION OF EVENT: .

.I On September 12, 1990, Unit I was in the process of performing a plant heatup.

During the heatup one of the three High Head Safety Injection (HHSI) pumps was not returned to service in accordance with Technical Specification requirements.

While in Mode 4 Technical Specification 4.5.3.1.2 requires that a maxirnum of one of the three 1111S1 pumps be operable, that another llHSI pump be operable

' but with its motor circuit breaker racked out, and that the third 101S1 pump have its motor circuit breaker also racked out. Technical Specification 3.5.2 allows entry into Mode 3 with two lillSI pumps inoperable pursuant to Technical Specification Surveillance Requirement 4.5.3.1.2, provided that the pumps are restored to operable status within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> or prior to the temperature of one or raore of the RCS cold legs exceeding 375'F, whichever comes first.

. At 0710 hours0.00822 days <br />0.197 hours <br />0.00117 weeks <br />2.70155e-4 months <br />, the Unit Supervisor directed the Reactor Operator (RO) to commence plant heatup. At approximately 0714 hours0.00826 days <br />0.198 hours <br />0.00118 weeks <br />2.71677e-4 months <br />, Mode 3 was entered and

the .RO continued the plant heatup frorn 350 degrees F in the Reactor Coolant System (RCS). At 0735 hours0.00851 days <br />0.204 hours <br />0.00122 weeks <br />2.796675e-4 months <br />, during the control room crew turnover, the duty

' Unit Supervisor (the Unit Supervisor who had boon on shift) noted that lutSI pump 1B' was still out of service. The Unit Supervisor directed an on coming RO to restore the 111151 pump 1B back to service as soon as possible and

. continued turnover, l.ater discussions revealed that this RO only understood that he should complete an unrelated checklist which he we.a e' ready performing. - The plant heatup continued with the 18 tillSI pump out of servii e. Durf t.g the heatup, the

.R0 responsible for control of RCS temperature and pressure did not recall the specific ternperature limit (375'F) for operability of all three IDISI pumps nor did he track the progress in implementing procedural steps during heatup.

At ,approximately 0745. hours RCS cold leg temperature exceeded 375 degrees F.

-1.ater?in the shift turnover, at 0800 hours0.00926 days <br />0.222 hours <br />0.00132 weeks <br />3.044e-4 months <br />, the duty and on coming Shift-Supervisors' discovered that RCS temperature was 389 degrees F with the llHSI-pump IB out -of service. The plant heatup was imrnediately secured and the 18; HHSI pump was returned to service at 0807 hours0.00934 days <br />0.224 hours <br />0.00133 weeks <br />3.070635e-4 months <br />. The NRC was notified of the event at 1316 hours0.0152 days <br />0.366 hours <br />0.00218 weeks <br />5.00738e-4 months <br /> on September 12, 1990.

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. % -oc r CAUS_E OF EVENT: . _ _ . _ .

1. The cause of this event was less than adequate supervdory oversight and communication.- The Unit Supervisor failed to provide the necessary oversight tc ensure the plant was in compliance with procedural and Technical Specification

requirements. The RO was allowed to proceed with the plant heatup with inadequate direction due to poor communications.

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2. Contributing to this event was failure of the RO to track progress in implementing procedural steps during heatup. The 375'F Technical Specification limit for fulSI pump operability is cicarly stated in the procedure. The RO alsc did not recall the specific temperature limit for operability of all three }DISI pumps.

7 ANALYSIS OF EVENT:

Exceeding 375 degrees F on any RCS cold Icg temperature prior to returning all 10lSI pumps to service, is a violation of Technical Specification 3.5.2. This represents operation prohibited by Technical Specifications which is reportable pursuant to 100FR 50.73 (a)(2)(1)(B).

_' HIliP has-reviewed the STPECS safety analyses and determined that the plant remained within its design basis during this event. In this event, there were two operable lulSI trains capable of automatic- actuation and the third capable of manual actuation. The plant was suberitical and all three trains of Low ilead Safety Injection were operable. Under the plant conditions at the tiac of the event (425 psi) there is sufficient cooling available in this configuration to provide time fo:

operator action to manually initiate- the third train of lutSI should it be necessary The safety significance of this event is minor as reflected by the Technical

- Specifications action statement which allows the inoperability of one luiSI train fo:

periods up to 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> in Modes 1,'2 and 3.

CORRECTIVE _ ACTIONS:

1. The Unit Supervisor was temporarily removed from licensed duties and counseled in rc6ard to propar communications and the necessary supervisory oversight expected by managment. A' disciplinary letter was placed in his personnel file and he was returned to licensed duties subject to increased J observation and supervisory oversight.

2. The Reactor Operator was counseled in regard to his responsibilities to be alert to the' applicable procedural requirements.

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s 00 ERECTIVE ACT10]iS.1 (cont'd)

3. A memorandum emphasizing the the expectations of management regarding adherence to procedures and attention to detail will be issued to Reactor Operetors and Unit Supervisors by October 15, 1990. These expectations will be reviewed in detail with the Reactor Operators and Unit Supervisors by November 30, 1990.

4 A memorandum enphasizing the requirements for control of lutSI pumps during, heatup will be issued to Reactor Operators and Senior Reactor Operators by October 15. 1990. These requirements will be reviewed in detail with the Reactor Operators at Senior Reactor Operators by November 30, 1990.

E 5. A training module emphastring the importance of attention to detail and self verification van developed and training was conducted for employees engaged in h

the maintenance and operation of the plant. This training will be conducted site wide by December 15, 1990.

ADDillDlMk lHITRMAT10N1 IIRs 87 012, 88 038, 88 064 and 89 024 for Unit 1 have documented similar events regarding failure to meet Technical Specification requirements prior to mode changes.

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