05000368/LER-1980-012-03, /03L-0:on 800222,during Mode 5 Operation,While Performing Surveillance Tests on Diesel Generator 1,unit Became Inoperable.Caused by Broken Generator Rotor Shaft in Area of Motor End Bearing Housing.Analyzing Exact Cause

/03L-0:on 800222,during Mode 5 Operation,While Performing Surveillance Tests on Diesel Generator 1,unit Became Inoperable.Caused by Broken Generator Rotor Shaft in Area of Motor End Bearing Housing.Analyzing Exact Cause

ML19305A835
Person / Time
Site:	Arkansas Nuclear
Issue date:	03/13/1980
From:	Pendergraft R ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19305A834	List: 05000368/LER-1980-010-03, /03L-0:on 800212,during Mode 5 Operation, Discovered That Tech Spec 24-month Local Leak Rate Surveillance Requirements Had Not Been Performed.Caused by Confusion Over 24-month Surveillance Interval 05000368/LER-1980-011-03, /03L-0:on 800214,during Mode 5 Operation,While Performing Local Leak Rate Test,Five Containment Penetration Leak Rates Exceeded Tech Specs.Caused by Corrosion Buildup on Seating Surface or Valves Needing Adjustment 05000368/LER-1980-012-03, /03L-0:on 800222,during Mode 5 Operation,While Performing Surveillance Tests on Diesel Generator 1,unit Became Inoperable.Caused by Broken Generator Rotor Shaft in Area of Motor End Bearing Housing.Analyzing Exact Cause ML19305A833
References
LER-80-012-03L, LER-80-12-3L, NUDOCS 8003180478
Download: ML19305A835 (1)

LER-1980-012, /03L-0:on 800222,during Mode 5 Operation,While Performing Surveillance Tests on Diesel Generator 1,unit Became Inoperable.Caused by Broken Generator Rotor Shaft in Area of Motor End Bearing Housing.Analyzing Exact Cause

Event date:
Report date:
3681980012R03 - NRC Website

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i the #1 Diesel Generator, the unit became inoperable.

The other diesel Igenerator was verified to be operable.

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Reoair of the Generator shaft is beinal m I accomplished by Diesel Generator Vendor.

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