ML20153C631

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Special Rept:On 880320,Channels 10 & 12 Vibration & Loose Parts Monitor Sys Declared Inoperable for More than 30 Days. Work Request Written to Repair Accelerameter.Repair Will Be Carried Out During Future Outage
ML20153C631
Person / Time
Site: Catawba 
Issue date: 04/29/1988
From: Tucker H
DUKE POWER CO.
To:
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
NUDOCS 8805060267
Download: ML20153C631 (2)


Text

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DuxE POWEn Goxtw.xy P.O. Hox 33180 CHAMLOTrE. N.O. 28249 HALB. TUCKER te ta rssonst vue reenament (7o4) Of3-4fb34 suas4a enoowvwe April 29, 1988 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D..C.

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Subject:

Catawba Nuclear Station, Unit 2 Docket No. 50-414 Special Report Gentlemen:

Pursuant to Techntcal Specification 3.3.3.9, please find attached a Special Report concerning the inoperability of Channels No. 10 and No. 12 of the Unit 2 Vibration and Loose Parts Nonitor System for more than 30 days.

Very truly yours,

{&

4 Hal B. Tucker JGT/11/sbn Attachment xc:

Dr. J. Nelson Grace, RcElonal Administrator U. S. Naclear Regulatory Commission Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 Mr. P. K. Van Doorn NRC Resident Inspector Catawba Nuclear Station

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h SPECIAL REPORT CATAWRA NUClf.AR STATION, UNIT 2 INOPFRABII.ITY OF CllANNKI.S NO. 10 AND NO. 12 0F Tile UNIT 2 VIBRATION AND IDOSE PARTS HONITOR SYSTFM FROM HORE TilAN 30 DAYS On March 20, 1988 Channel No. 10 (S/G B) of the Unit 2 Vibration and loose Parts Monitor System was declared inoperable. A redundant channel on S/G B (Channel No. 6) remains operable. Work Request 399020PS was written to repair the accelerameter. The repair will be carried out during a future outage. Since the channel has been inoperable more than 30 days this is reportable to the NRC pursuant to Technical Specification 3.3.3.9.

On March 20, 1988 Channel No. 12 (S/G D) of the Unit 2 Vibration and Loose Parts Honitor System was declared inoperable. A redundant channel on S/G D (Channel

  1. 8) remains operable. Work Request 399030PS was written to repair the accelerameter. The repair will be carried out during a future outage. Since the channel has been inoperable more than 30 days this is reportable to the NRC pursuant to Technical Specification 3.3.3.9.