PNO-III-85-063, on 850723,reactor Shut Down to Repair Thrust Bearing Housing on Feedwater Pump,Damaged During 850722 Demonstration Testing.Further Exam Underway

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PNO-III-85-063:on 850723,reactor Shut Down to Repair Thrust Bearing Housing on Feedwater Pump,Damaged During 850722 Demonstration Testing.Further Exam Underway
ML20132C850
Person / Time
Site: Fermi, 05003418  DTE Energy icon.png
Issue date: 07/24/1985
From: Chrissotimos N, Wright G
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:
References
PNO-III-85-063, PNO-III-85-63, NUDOCS 8507310016
Download: ML20132C850 (1)


b rnla PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE--PNO-III-85-63 Date July 24, 1985 This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance. The information is as initially received without veri-fication or evaluation, and is basically all that is known by the staff on this date.

Facility: Detroit Edison Company Licensee Emergency Classification:

Fenni 2 Nuclear Plant Notification of an Unusual Event Newport, MI 48166 Alert Site Area Emergency Docket No: 50-341 XX General Emergency &

Not Applicable Subj:ct: SHUT DOWN TO REPAIR FEEDWATER PUMP Th2 licensee shut the unit down on July 23, 1985, to investigate damage to the South Reactor Fe:d Pump which occurred during demonstration testing on July 22, 1985. Initial examination of the pump showed extensive damage to the thrust bearing housing, and further examination of the pump is underway.

The plant began a previously planned maintenance outage early to repair the pump. The licensee and pump vendor are also considering the possibility of a similar problem with the North Reactor Feed Pump.

Th3 S:nior Resident Inspector is monitoring the licensee's activities.

The State of Michigan will be informed.

Region III (Chicago) was informed of the pump damage on July 23, 1985, and obtained additional information on July 24, 1985. This information is current as of 2 p.m., (CDT),

July 24, 1985.

CONTACT: G. Wright

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)N.Chrissotimos FTS 388-5695 FTS 388-5716 DISTRIBUTION:

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