ML20141M231

Advises That Steps Taken to Resolve Issues Re Generic Ltr 88-14, Instrument Air Supply Sys Problems Affecting Safety- Related Equipment Acceptable,Per Util 890221 & s

ML20141M231
Person / Time
Site:	Oyster Creek
Issue date:	03/30/1992
From:	Dromerick A Office of Nuclear Reactor Regulation
To:	J. J. Barton GENERAL PUBLIC UTILITIES CORP.
References
GL-88-14, TAC-M71692, NUDOCS 9204030110
Download: ML20141M231 (3)

Text

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r NUCLE AR REGULATORY COMMISSION n {1m '" f WAssiNotoy. o c. rosu March 30, 1992 7e S.'....f'  ; Docket No. 50-219 l Hr. John J. Barton Vice President and Director GPU Nuclear Corporation Oyster Creek Nuclear Generatl ' ion Post Office Box 388 forked River, New Jersey 08731

SUBJECT:

GENERIC LETTER 88-14 "lNSTRUMENT AIR SUPPLY SYSTEM PROBLEMS AffECTING SA7H Y-RELATED EQUIPMENT" (TAC NO. H71692) In your letter of February 21, 1989, GPU Nuclear Corporation (GPUN) provided the status of actions taken regarding the Instrument Air Supply System in response to Generic Letter 88-14, " Instrument Air Supply System Problems Affecting Safety-Rclated Equipment." You also concluded that the Oyster Creek Instrument Air System design is in accordance with its intended function, and that air-operated comporents will function as expected in accordance with all design basis events including loss-of-air. GPUN's letter of March 9, 1992, stated that GPUN completed functional operability testing of air valves. This testing consisted of ensuring valves were positioned appropriately following a simulated loss of air condition, for valves with accumulators, this was assessed by stroking the 40 safety-related valves using accumulators only, for the safety-related valves with spring return actuators, the air was vented from the actuator resulting in the spring repositioning the stalve. These functional operability tests were successfully completed during the 13R uutage. You also indicated that GPUN performed an evaluation of applicable components and piping / tubing utilizing the Seismic Qualification Utilities Grou) (SQUG) program. The conclusions of the seismic evaluation report implied tlat the piping or tubing for ten secondary containment isolation valves may have-failed due to loadings imposed by the safe shutdown earthquake (SSE). Had the air piping or tubing failed as a result of-the seismic loads, the operability of these valves could have been challenged. As a result of this review, GPUN indicated that a todification was installed during 13R to provide flexible hoses at these locations, effectively alleviating this concern. Further you indicated that currently, a program to ensure operability of safety-related air operateddives is under development and that this program will be implemented through appropriate surveillance and preventive maintenance activities utilizing the test results identified during the functional testing. It is requested that GPUN advise the staff of the date this program was implemented.

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Hr. John J. Barton i Based on infcrmation provided by GPUN regarding its response to Generic letter 88-14, the staff has determined that the steps GPUN has taken to resolve the } issues related to the Generic Letter are acceptable and that this item is considered resolved. Sincerely, 6

                                                                    /s/

i Alexander W. Dromerick, Senior Project Manager Project Directorate 3-4 Division of Reactor Projects - 1/11 Office of Nuclear Reactor Regulation cc: See next page ( Distribtttiqui b Docket File W NRC & Local PDRs PD l-4 Plant SVarga JCalvo SNorris ADromerick OGC WLong CMcCracken ACRS (10) CWilehl, RI L OfflCIAL RECORD COPY Document Name:M71692

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i i Mr. John J. Barton Oyster Creek Nuclear GPU Nuclear Corporation Generating Station Cc: 1 Ernest L. Blake, Jr., Esquire Resident inspector Shaw, Pittman, Potts & Trowbridge c/o U.S. Nuclear Regulatory Commission 2300 N Street, NW. Post Office Box 44$ Washington, DC 20037 forked River, New Jersey 08731 Regional Administrator, Region I Kent Tosch, Chief U.S. Nuclear Regulatory Commission New Jersey Department of 475 Allendale Road Environmental Protection King of Prussia, Pennsylvania 19406 Bureau of Nuclear Engineering CN~415 BWR Licensing Manager Trenton, New Jersey 08625 GPU Nuclear Corporation l 1 Upper Pond Road Parsippany, New Jersey _07054 Mayor Lacey Township 818 West Lacey Road forked River, New Jersey 08731 Licensing Manager

                .0yster Creek Nuclear Generating Station Mail Stop: ' Site Emergency Bldg.

Post Office Box 388 Forked River, New Jersey 08731 i l [.

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