ML20071N446
| ML20071N446 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 05/24/1983 |
| From: | Coffey J TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| RO-50-296-8331, NUDOCS 8306070059 | |
| Download: ML20071N446 (1) | |
Text
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c-TELECOPY TO NRC 7%
May 24, 1983 3
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U. S. Nuclear Regulatory Commission Region II y,/
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-n t 101 Marietta Street, NW Oj, *.
Suite 3100 v
Atlanta,-Georgia 30303 BFRO-50-296/8331 Reported under Technical Specification 6.7.2.A.5 Telecony : Date 5/23/83 Time: 1530 Telechone : Date 5/23/83 Time: 1500 Person Contacted : Ross Butcher Date of Occurrence: 5/20/83 Time of Occurrence: 0900 Unit 3 Technical Specification Involved: 3 2.B Conditions Prior to Occurrence Unit 1 - refueling outage Unit 2 - normal operation 3194 wt Unit 3 - normal operation 3287 MWt Identification and Descrintion of Occurrence During routine surveillance testing (Surveillance Instruction 4.2.B-7) reactor low-pressure switches PS-3-74B switch 2 and PS-68-96 switch 2 were found below technical specification limits.
The greatest out-of-tolerance was 1.2 percent below technical specification limits.
Annarent Cause of Occurrence Setpoint drift
.Qther Related Events BFRO-50-259/81038, 81064, 82038, 77002 BFRO-50-260/83002, 81033, 78018, 82003, 82013 BFRO-50-296/79010, 79028 Corrective Action Taken or Planned g$
a-Setpoints were reset to their proper value, and the surveillance Q
instructions completed satisfactorily. Additionally, a design change En request (DCR 1398) has been initiated to replace these switches with an 8
p analog transmitter trip switch.
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.OC
.g J. A. Coffey ME Acting Power Plant Superintendent
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I g Browns Ferry Nuclear Plant OFFICIAL COP N&
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