ML20078H328

Telecopy RO 83061:on 831004,hydrogen-oxygen Analyzer Sample Pump B Determined Inoperable Following Notification from Metal Bellows Corp of Generic Deficiency.Pump Replaced W/ Upgraded Model in Stock on 831005

ML20078H328
Person / Time
Site:	Browns Ferry
Issue date:	10/06/1983
From:	Jones G TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
RO-83061, NUDOCS 8310140127
Download: ML20078H328 (2)

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'M TELECOPY TO NRC Oct. 6,198g e\-

U. S. Nuclear Regulatory C Region II

$n 101 Marietta Street, NW Suite 3100 Atlanta, Georgia 30303 BFRO-50-260/83061 Reported under Technical Specification 6.7.2.a.9 l

Telecony Date 10/06/ 83 .Ilag. 1015 Telephone : Date: 10/5/83 Time 1305 Date of Occurrence: 10/4/83 Time of Occurrence: 1400 Unit 2 Technical Specification Involved: 3 7.H Conditions Prior to Occurrence Units 1 and 3 - Refueling Outage Unit 2 - Operating at 3276 MW (th)

Identification and Descriotion of Occurrence On October 4,1983 at 1400 hours0.0162 days <br />0.389 hours <br />0.00231 weeks <br />5.327e-4 months <br />, unit 2 "B" hydrogen-oxygen analyzer sample pump was determined to be inoperable following notification from Metal Bellows Corporation of a generic deficiency.

Anoarent Cause of Occurrence :

Metal Bellows Corporation determined that under required high-pressure conditions the Model MB601 HP, Part No. 40523 sample motors (Serial Numbers 763 - 770) would require excessive cur:.-ent and would not perform their intended function.

Metal Bellows had previously notified TVA that the pumps draw excessive current and the pumps were being replace for that reason. However, TVA had not been informed that the pumps would not perform their function. On October 3,1983, Browns Ferry received notification from Metal Bellows that the pumps "will not perform to specifications under high-pressure conditions." On October 4,1983 at 1400 hours0.0162 days <br />0.389 hours <br />0.00231 weeks <br />5.327e-4 months <br />, Browns Ferry received clarification that the original pumps would not perform their intended function due to excessive motor current during required high-pressure operation.

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8310140127 831006 PDR ADOCK 05000260 S PDR Y[' /

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e TFLRCOPY TO NRC Oct. 5,1983 SMgr Related Events :

None Corrective Action Taken or Planned :

Pending clarification of the notification, 2A pump was replaced on October 3, 1983 with an upgraded pump in stock. Pump 2B is expected to be replaced October 5,1983 with an upgraded pump from unit 3 Unit 1 and unit 3 pump assemblies had been previously changed out with upgraded assemblies.

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, G. T. Jones Tower Plant Superintendent Browns Ferry Nuclear Plant

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