ML19309C863

Ro:On 800215,discovered Approx 50% of Fire Detectors in Zone 14 of Reactor Bldg Were Inoperable.Caused by Reversal of Polarity in Electrical Leads,Probably Occurring During Recently Completed Plant Mod.Repairs Planned

ML19309C863
Person / Time
Site:	Brunswick
Issue date:	04/02/1980
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:
References
BSEP-80-609, NUDOCS 8004090332
Download: ML19309C863 (1)

Text

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Carolina Power & Light Company Br'unswick Steam Electric Plant P. O. Box 10429 Southport, N. C. 28461 .

April 2, 1980 FILE: B3516 ,

SERIAL: BSEP/80-609 Mr. James P. O'Reilly, Director U. S. Nuclear Regulatory Commission .

Region II 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303 BRUNSWICK STEAM ELECTRIC PLANT, UNIT NO. 2 LICENSE NO. DPR-62 DOCKET No. 50-324 SPECIAL REPORT PER TECHNICAL SPECIFICATION 6.9.2d

Dear Mr. O'Reilly:

As required by Technical Specifications 3.3.5.7 and 6.9.2d, Carolina Power &

Light Company is submitting the following special report.

On February 15, 1980, it was discovered that approximately 50% of the fire detectors in zone 14 of the Unit No. 2 Reactor Building were inoperable. A preliminary investigaticn indicates that the problem is a reversal of polarity in the electrical leads to these detectors, probably occurring during a recently completed plant modification.

These detectors are located in the overhead of the 117' elevation, 60' above the floor with no access available. Upon the completion of refueling and core alterations in progress, the refueling crana will be used for access to the detectors for repairs.

Through a procedural inadequacy, the reportability of this item was not iden-tified such that the report could be issued in the required time frame. The procedure will be revised to insure that special reports are identified and submitted in the required time. Mr. Austin Hardin was notified on April 1, 1980, that this report would be late.

Very truly yours, w

A. C. Tollis n, Jr., General Manager Brunswick Steam Electric Plant gg/ )

RMP/bd U \ u cc: Mr. R. A. Hartfield Mr. V. Stellot/'

3 so4ooo 332