ML20153C298

Special Rept 88-003-00:on 880714,core Spray Seismic Monitor Declared Inoperable After Failing Functional Test.Caused by Sticking of Longitudinal & Transverse Accelorometers of Monitor.Monitor to Be Replaced

ML20153C298
Person / Time
Site:	Hope Creek
Issue date:	08/24/1988
From:	Labruna S Public Service Enterprise Group
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
88-003-00, 88-3, NUDOCS 8809010080
Download: ML20153C298 (1)

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D PSIBG Public Service Electric and Gas Company P.O. Box 236 Hancocks Bridge, New Jersey 08038 Hope Creek Operations August 24, 1988 U. S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555

Dear Sir:

HOPE CREEK GENERATING STATION DOCKET NO. S0-354 UNIT NO. 1 SPECIAL REPORT 88-003-00 On July 14, 1388, the Core Spray r.ystem seismic monitor (SG-VE-7863) was declared inoperar.e after failing a semi-annual channel functional test. Technical Specification 3.3.7.2 requires that any inoperable seismic monitoring channels be returned to an operable status. within 30 days, and if not, submit a special report within the follcwing 10 days detailing the circumstances surrounding the inoperability. As of August 13, the channel was still inoperable.

Troublechooting by the station maintenance department determined that the monitor longitudinal accelorometer is sticking and the transverse accelorometer is stuck in its natural frequency. Due to the location of the inoperable monitor (inside the drywell, mounted on "A" Core Spray line),

replacement of the monitor is not possible during power operation. A replacement mcnitor is on hand, and the inoperable monitor will be replaced during the next plant outage (forced or scheduled) requiring access to the drywell.

Sincerely, d & *10--~~ -

S. LaBruna General Hansger -

Hope Creek Operations RBC/

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