ML20056C978
| ML20056C978 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 07/23/1993 |
| From: | Collins S NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Cottle W HOUSTON LIGHTING & POWER CO. |
| Shared Package | |
| ML20056C979 | List: |
| References | |
| NUDOCS 9307300176 | |
| Download: ML20056C978 (5) | |
See also: IR 05000498/1993019
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UNITE D ST ATES
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NUCLEAR REGULATORY COMMISSION
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REGION IV
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611 RYAF PLAZA DRIVE, SulTE 400
AR LINGTON. T E XAS76011 8064
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JUL 2 31998
Dockets:
50-498
50-499
Licenses: NPF-76
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Houston Lighting & Power Company
ATTN: William T. Cottle, Grcup
Vice President, Nuclear
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P.O. Box 1700
Houston, Texas 77251
SUBJECT: NRC INSPECTION REPORT 50-498/93-19; 50-499/93-19
This refers to the reactive inspection conducted by Messrs. L. E. Ellershaw
and C. J. Paulk of this office on May 24 through June 14, 1993. This
inspection included a review of activities authorized for your South Texas
Project, Units I and 2, facility. At the conclusion of the inspection, the
findings were discussed with those members of your staff identified in the
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enclosed report. Additional information was discussed with Mr. M. Coughlin on
June 14, 1993; and Ms. P. Parrish on June 23, 1993; and Mr. M. Cooghlin on
June 29, 1993.
Areas examined during the inspection are identified in the report. These
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areas included followup on your notification regarding a normally closed main
feedwater isolation bypass valve being discovered partially open, and
notification of a failure to maintain the equipment qualification of a
residual heat removal motor-operated valve. Within these areas, the
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inspection consisted of selective examinations of procedures and
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representative records, interviews with personnel, and observation of
activities in progress. The results of this inspection are documented in the
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enclosed report.
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Based on the results of this inspection, six unresolved iteras were identified.
These unresolved items involved safety-related classification, solenoid aging,
calibration of remote position indicators, and correction of an identified
design deficiency of main feedwater isolation bypass valves, and T-drain
installation on a residual heat removal motor-operated valve.
In additior.,
please be advised that the number and characterization of unresolved items
described in the enclosed inspection report may change as a result of further
NRC review.
A management meeting to discuss these unresolved items will be scheduled with
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you by separate correspondence.
In particular, we request you to address the
safety significance regarding the apparent degradation of the main feedwater
isolation bypass, valves.
Also, please be prepared to discuss your position
JDR3073OO276 930723
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Houston Lighting & Power Company
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regarding the need to request an amendment to Technical Specifications related
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to the operability of main feedwater isolation bypass valves.
Lastly, we
request that you address the root causes which allowed these problems to
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occur.
You will be advised by separate correspondence of the results of our
deliberations on this matter. No response regarding these unresolved items is
required at this time.
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It is our understanding that during the preliminary exit coaducted on May 28,
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1993, Mr. G. Parkey, Plant Manager, committed to implement Design Change
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ECNP 89-J-0165 prior to unit restart, which would result in Unit 2 main
feedwater isolation bypass valve solenoids performing the safety-related valve
venting function, in lieu of the valve positioners.
If your understanding of
this commitment differs from ours, please contact me immediately.
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In accordance with 10 CFR 2.790 of the NRC's " Rules of Practice," a copy of
this letter and its enclosures will be placed in the NRC Public Document Room.
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Should you have any questions concerning this inspection, we will be pleased
to discuss them with you.
Sincerely,
0RL'M--
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. Collins, Director
) Division of Reactor Safety
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Enclosure:
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Appendix - NRC Inspection Report
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50-498/93-19; 50-499/93-19
cc w/ enclosure:
Houston Lighting & Power Company
ATTN: James J. ShepNrd, General Manager
Nuclear Licensi:;g
P.O. Box 289
Wadsworth, Texas 77483
City of Austin
Electric Utility Department
ATTN:
J. C. Lanier/M. B. Lee
721 Barton Springs Road
City Public Service Board
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ATTN:
R. J. Costello/M. T. Hardt
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P.O. Box 1771
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San Antonio, Texas 78296
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Houston Lighting & Power Company
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Newman & Holtzinger, P. C.
ATTN: Jack R. Newman, Esq.
1615 L Street, NW
Washington, D.C.
20036
Central Power and Light Company
ATTN:
D. E. Ward /T. M. Puckett
P.O. Box 2121
Corpus Christi, Texas 78403
INFO
Records Center
700 Galleria Parkway
Atlanta, Georgia 30339-5957
Mr. Joseph M. Hendrie
50 Bellport Lane
Bellport, New York 11713
Bureau of Radiation Control
State of Texas
1101 West 49th Street
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Judge, Matagorda County
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Matagorda County Courthouse
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1700 Seventh Street
Bay City, Texas 77414
Licensing Representative
Houston Lighting & Power Company
Suite 610
Three Metro Center
Bethesda, Maryland 20814
Houston Lighting & Power Company
ATTN: Rufus S. Scott, Associate
General Counsel
P.O. Box 61867
Houston, Texas 77208
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Ho'uston Lighting & Power Company
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bec to DMB (IE01)
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J. L. Milhoan
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RIV File
Project Engineer (DRP/A)
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R. Bachmann, 0GC, MS: 15-B-18
Section Chief (DRP/TSS)
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C. Paulk
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D.. Powers
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Project Engineer (DRP/A)
R. Bachmann, OGC, MS: 15-B-18
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T. Westerman
D. Powers
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