ML20246M220

Confirmation of Action Ltr 89-01 Re 890505 Conversation Concerning Backleakage Through Borg-Warner Check Valves in Auxiliary & Main Feedwater Sys on 890423.Understanding That Stated Actions Underway Confirmed

ML20246M220
Person / Time
Site:	Comanche Peak
Issue date:	05/05/1989
From:	Charemagne Grimes Office of Nuclear Reactor Regulation
To:	William Cahill TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
References
CAL-89-01, CAL-89-1, NUDOCS 8905190072
Download: ML20246M220 (4)

Text

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• ,; k, UNITED STATES y p, - NUCLEAR REGULATORY COMMISSION

$ j WASHINGTON, D. C. 20555

% ,,,,,+ Ma/ 5, 1989 In Reply Refer To: 1 Docket: 50-445/ CAL 89-01 i Mr. W. J. Cahill l Executive Vice President 1 TU Electric l 400 North Olive Street, Lock Box 81  !

Dallas, Texas 75201

SUBJECT:

CONFIRMATION OF ACTION LETTER This is to confirm the conversation between Mr. A. B. Scott of your staff and Mr. R. F. Warnick of my staff on May 5, 1989, regarding the incident of backleakage through the Borg-Warner check valves in the Auxiliary and Main Feedwater Systems on April 23, 1989 during the Unit 1 Hot Functional Testing.

Based on our conversation, it is my understanding that TU Electric is taking the following actions:

1. All records and instrumentation records relevant to the event will be gathered and preserved by TV Electric.

2. Additional testing will be perfomed to identify the individual feed system check valves that are leaking.

Thermal stress analysis will be performed and results made available for review.

3. After the Hot Functional Test is ccmpleted and the plant cooled down, check valves with confirmed leakage and those with similar operational characteristics will be opened for inspection and corrective action taken. The NRC site inspection team (H. Livemore) is to be notified of the date and time each check valve is to be opened so that the NRC can be present and observe the work in-process and the condition of the valve.

4. Valve internals and other evidence that might be important to the identification of cause of the check valve backleakage will be entered on the Quarantined Equipment List (QEL) and preserved until released by the NRC.

5. The NRC site inspection team will be kept apprised of current activities, findings, and plans relating to the check valve backleakage problem as well as all plans for reinstallation and retest.

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8905190072 R 890505 ADOCK 05000445 PNU h,l

,, - May 5, 1989 Mr. W. J. Cahill 6. The generic aspects of the check valve backleakage will be considered for both Units 1 and 2.

If your understanding differs from that set forth above, please call me immediately.

Sincerely, Original signed by C. I. Grimes Director Comanche Peak Project Division Office of Nuclear Reactor Regulation cc: See next page l Distribution:

Docket-F11et50-445%

NRC PDR Local PDRt

ADSP Reading CPPD Reading T. Murley/J. Sniezek D. Crutchfield C. I. Grimes R. Warnick J. Gilliland R. Martin F. Miraglia B.. Grimes C. Rossi E. Jordan OGC (J. Moore)

J. Lieberman M. Malloy M. Fields P. McKee J. Lyons J. H. Wilson T. O. Martin, ED0 G. Sanborn, RIV 0FC :CPPD:NR :00EA:NR :CPPD:NRR  :  :  :  :

NAME :RWarnick:cbb: s - :CIGrimes  :  :  :  :

...__:______..p..:........_____:____________:___________:_____...____:.....______:__...______

DATE :5/6 /89 Y :5/dI/89 :5/5/89  :  :  :  :

OFFICIAL RECORD COPY

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Mr. W. J. Cahill l l cc:

Asst. Director for Inspec. Programs Joseph F. Fulbright Comanche Peak Project Division Fulbright & Jaworski U.S. Nuclear Regulatory Commission 1301 McKinney Street P. O. Box 1029 Houston, Texas 77010 Granbury Texas 76048 Roger D. Walker Regional Administrator, Region IV Manager, Nuclear Licensing U.S. Nuclear Regulatory Commission Texas Utilities Electric Company 611 Ryan Plaza Drive, Suite 1000 Skyway Tower Arlington, Texas 76011 400 North Olive Street, L.B. 81 Dallas, Texas 75201 Lanny.A. Sinkin Christic Institute Texas Utilities' Electric Company 1324 North Capitol Street c/o Bethesda Licensing Washington, D.C. 20002 3 Metro Center, Suite 610 Bethesda, Maryland 20814 Ms. Billie Pirner Garde, Esq.

Garde Law Office William A. Burchette, Esq.

104 East Wisconsin Avenue Counsel for Tex-La Electric Cooperative Appleton, Wisconsin 54911 of Texas Heron, Burchette, Ruckert & i >thwell Susan M. Theisen 1025 Thomas Jefferson Street, NW Assistant Attorney General Washington, D.C. 20007 Environmental Protection Division P. O. Box 12548, Capitol Station GDS ASSOCIATES, INC.

Austin, Texas 78711'1548 Suite 720 1850 Parkway Place-Mrs. Juanita Ellis, President Marietta, Georgia 30067-8237 Citizens Association for Sound Energy 1426 South Polk Dallas, Texas 75224 E. F. Ottney P. O. Box 1777 Glen Rose, Texas 76043 George A. Parker, Chairman Public Utility Committee Senior Citizens Alliance of Tarrant County, Inc.

6048 Wonder Drive Fort Worth, Texas 76133 l

a , 4-Mr. W. J. Cahill cc:

Mr. Paul Gosselink Attorney General's Office P.1). Box 12548. Capitol Station Austin, Texas 78711 Texas Radiation Control Program Director Texas Department of Health 1100 West 49th Street Austin, Texas 78756 0ffice of the Governor ATTN: Darla Parker

' Office of Intergovernmental Relations P. O. Box 13561

~ Austin.. Texas 78711 Honorable George Crump County Judge Glen Rose, Texas 76043 Honorable Milton Meyer County Judge Hood County Courthouse Granbury, Texas 76048

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