ML20195C882

Forwards LERs88-025 & 88-026

ML20195C882
Person / Time
Site:	Cooper
Issue date:	10/27/1988
From:	Horn G NEBRASKA PUBLIC POWER DISTRICT
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
Shared Package
ML20195C887	List: 05000298/LER-1988-025, :on 880928,Div II Primary & Secondary Containment Isolations Occurred.Caused by Coil Failure of Normally Energized Relay in Reactor & Containment Isolation Logic.Failed Relay Coil Replaced 05000298/LER-1988-026, :on 880930,momentary Undervoltage Condition on Emergency Transformer Sensed,Resulting in Auto Startup of Diesel Generators 1 & 2.Cause Unknown.Engineering Evaluation to Be Completed & Necessary Mods Made Prior to Startup ML20195C882
References
CNSS886362, NUDOCS 8811040053
Download: ML20195C882 (1)

Text

.

COOPER NUCLE AR ST ATION

"" "

• Wa" i DWl,0.^Y^ "_". ' _ _

t~g '

Nebraska Public Power District d

CNSS886362 October 27, 1988 U. S. Nuclear Regulatory Commission Document Control Desk Washington, D. C. 205">5 Gentlemen:

Cooper Nucicar Station Licensee Event Reports88-025 and 88-026 are forwarded as attachments to this letter.

Sincerely,

) (,hhWfW G. R. Horn Division Manager of Nuclear Operations GRil: sg Attachment ec:

R. D. Martin L. G. Kunci R. E. Wilbur V. L. Wolstenhoin G. A. Trevors INPO Records Center ANI Library NRC Resident Inspector R. J. Singer CNS Training CNS Quality Assurance CG11040053 891027 PDR ADOCK 05000290 ilg PDC

\\

3 GiiEETiiii&E3n

~L]:MSTTiill!:nt tDl]Dl;tymwrE

~7L

~