3F0992-18, Special Rept 92-003:on 920815,auxiliary Bldg high-range Noble Gas Monitor Failed Calibr & Declared Inoperable for More than 7 Days.Automatic Isotopic Monitoring Sys Available for Use.Amplifier Components & detector-sensor Replaced

Special Rept 92-003:on 920815,auxiliary Bldg high-range Noble Gas Monitor Failed Calibr & Declared Inoperable for More than 7 Days.Automatic Isotopic Monitoring Sys Available for Use.Amplifier Components & detector-sensor Replaced

ML20106B219
Person / Time
Site:	Crystal River
Issue date:	09/24/1992
From:	Boldt G FLORIDA POWER CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
3F0992-18, 3F992-18, 92-003, 92-3, NUDOCS 9210010057
Download: ML20106B219 (2)

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September 24, 1992 3F0992-18 U. S. Nuclear Regulatory Commission Attention: Decument Control Desk Washington, D.C. 20555

Subject:

Special Report 92-003

Dear Sir:

Enclosed is Special Report 92-003 which is submitted in accordance with the Florida Power Corporation Nuclear Operations Off-site Dose Calculation Manual, Requirement 2.2, Action 29.

Should there be any questions, please contact this office.

Very truly yours, f /( bhhY' G . L . ,s oldt Vice President, Nuclear Production JAF: mag Enc.

xc: Regional Administrator, Region 11 NRR Project Manager Senior Resident Inspector 9801)O 9210010057 920924 PDR ADOCK 05000302 S PDR l POST OFFICE BOX 219 + CRYSTAL RIVER, FLORIDA 32623 0219 + (904) 795 6486 A Flonda Progress Company IH

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SPECIAL REPORT 92-03 4

This Special Report provides information concerning the cause and corrective actions for failure of the Auxiliary Building High Range Noble Gas Monitor.

This Report is being provided per the Offsite Dose Calculation Manual, Requirement 2.2, Action 29, because the High Range Monitor was inoperable  ;

for more than seven (7) days.

On August 15, 1992, during routine calibration of the Auxiliary Building High Range Noble Gas Monitor, the monitor failed the calibration and was determined to be inoperable. The preplanned alternative monitoring method ,

via the Automated Isotopic Monitoring System was verified to'be available for use. Repair of the monitor included replacement of amplifier components and the detector-sensor. P The monitor was returned to operable status on September 1, 1992. The repair took longer than the allowed outage time of seven (7) days because a new detector was not immediately available and had to be ordered from the manufacturer.

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