05000346/LER-1977-094, Forwards LER 77-094/03L-0

Forwards LER 77-094/03L-0

ML19326A482
Person / Time
Site:	Davis Besse
Issue date:	12/13/1977
From:	Murray T TOLEDO EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML19326A483	List: 05000346/LER-1977-094, Forwards LER 77-094/03L-0 05000346/LER-1977-094-03, /03L-0:on 771116,emergency Ventilation Sys Dampers Pdv 5014A & B Failed to Modulate Correctly to Draw Down Annulus.Caused by Defective Pressure Differential Controller.Dampers Replaced & Sys Retested
References
L77-434, NUDOCS 8002040650
Download: ML19326A482 (1)

LER-1977-094, Forwards LER 77-094/03L-0

Event date:
Report date:
3461977094R00 - NRC Website

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TOLEDO EDISON December 13, 1977 L77-434 FILE: RR.2 (NP-33-77-94)

Docket No. 50-346 License No. NPF-3

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'N Mr. James G. Keppler

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\\'rfgi Regional Director, Region III

,0 LI Office of Inspection and Enforcement

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U. S. Nuclear Regulatory Commission

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2 799 Roosevelt Road

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's Glen Ellyn, Illinois 60137

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Dear Mr. Keppler:

Reportable Occurrence NP-33-77-94 Davis-Besse Nuclear Power Station Unit 1 Date of Occurrence: November 16, 1977 Enclosed find three copies of Licensee Event Report NP-33-77-94 with a supple-mental information sheet, which is being submitted in accordance with Technical

/^N, Specification 6.9 to provide 30 day written notification of the subject occur-

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Yours truly, T* Q W: _ d

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Terry D. Murray Station Superintendent Davis-Besse Nuclear Power Station TDM/JRL/ljk Enclosures cc:

Dr. Ernst Volgenau, Director Office of Inspection and Enforcement Enc 1: 30 copies Licensee Event Report 30 copies Supplemental Information Sheet Mr. William G. Mcdonald, Director Office of Management g g 13 jG77 Information and Program Control Enc 1: 3 copies Licensee Event Report 3 copies Supplemental Information Sheet

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8002040660 "

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