ML20063D935

RO 82-40:on 820805,while in Mode 3,pressurizer Pressure Transmitters for Four Safety Channels Found Out of Calibr. Transmitters Recalibr.Pressure Transmitter Readings Will Be Taken Periodically & Compared Against Test Gauges

ML20063D935
Person / Time
Site:	Calvert Cliffs
Issue date:	08/06/1982
From:	Russell L BALTIMORE GAS & ELECTRIC CO.
To:	Haynes R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
RO-82-40, NUDOCS 8208300084
Download: ML20063D935 (1)

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DESIGNATED ORICINAL Ceetified # "m BALTIMORE GAS AND ELEdTRICt0MPAttY- =

P.O. BOX 1475 8 ALTIMORe. M ARYt.AND 21203 Nuct. EAR POWER DEPARTutetT CA; VERT Citst$ EUCLEAR PostR OLANT LM87, WAAYLAWo 2:457 August 6, 1982 Mr. Ronald C. Raynes, Director Docket No. 50-317 U. S. Nuclear Regulatory Commission License No. DPR 53 Region 1 631 Park Avenue King of Prussia, PA 19406

SUBJECT:

LEll 82-40. Unit 1

Dear Mr. Haynes:

This letter is to confirm our verbal notification of your Mr. Ralph Architzel of the discovery that the pressurizer pressure transmitters for the four safety channel vere out of calibration (T.S. 2.2.1, 3.3.1.1, 3.3.2.1) .

At 0405 on August 5,1982, while in Mode 3, the pressurizer safety cbnnels were removed from service to perform calibration checks on their respective pressure transmitters. It was subsequently discovered that the pressure transsitters were out of calibration in the low direction. These pressure transmitters were recalibrated at 1200 on August 5, 1982. Further investiga-tion revealed that a number of the stess generator pressure transmitters were also out of calibration. These pressure transmitters were recalibrated at 1700 on August 5, 1982. In order to monitor for possible future calibration

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problems with these pressure transmitters, readings are being taken periodi-l cally and compared against test gauges.

A complete description of this event, together with a detailed description of cause and corrective actions, vill be provided in the follow-up report.

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Very truly yours,

\ raf

. B. Russell Plant Superintendent LBR:bsg cc: J. A. Tiernan R. H. Douglass Director, Office of Management R. E. Architzel Information & Program Control L. B. Russell R. L. Wenderlich W. S. Gibson

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8208300004 820806 PDR ADOCK 05000317 S PDR ,

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