05000327/LER-1981-035-03, /03L-0:on 810403,auxiliary Feedwater Pump 1A-S Tripped on Electrical Overspeed After Inadvertent Pump Start.Caused by Locking Nut on Control Circuit Trimpot Vibrating Loose & Allowing Setpoint to Drift

/03L-0:on 810403,auxiliary Feedwater Pump 1A-S Tripped on Electrical Overspeed After Inadvertent Pump Start.Caused by Locking Nut on Control Circuit Trimpot Vibrating Loose & Allowing Setpoint to Drift

ML20003H273
Person / Time
Site:	Sequoyah
Issue date:	04/30/1981
From:	Harding M, Wilkey A TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20003H270	List: 05000327/LER-1981-035, Forwards LER 81-035/03L-0 05000327/LER-1981-035-03, /03L-0:on 810403,auxiliary Feedwater Pump 1A-S Tripped on Electrical Overspeed After Inadvertent Pump Start.Caused by Locking Nut on Control Circuit Trimpot Vibrating Loose & Allowing Setpoint to Drift
References
LER-81-035-03L-02, LER-81-35-3L-2, NUDOCS 8105050475
Download: ML20003H273 (1)

LER-1981-035, /03L-0:on 810403,auxiliary Feedwater Pump 1A-S Tripped on Electrical Overspeed After Inadvertent Pump Start.Caused by Locking Nut on Control Circuit Trimpot Vibrating Loose & Allowing Setpoint to Drift

Event date:
Report date:
3271981035R03 - NRC Website

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