ML19326A563

Forwards LER NP-33-77-100

ML19326A563
Person / Time
Site:	Davis Besse
Issue date:	12/27/1977
From:	Murray T TOLEDO EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML19326A553	List: 05000346/LER-1977-100, Forwards LER 77-100/03L-0 05000346/LER-1977-100-03, /03L-0:on 771201 & 05,source Range Neutron Detector NI-1 Indication Dropped to Zero & Returned to Normal Operation W/O Assistance.Cause Unknown.After First Failure,Detector Replaced & Retested ML19326A563
References
L77-443, NUDOCS 8002040735
Download: ML19326A563 (1)

Text

73 lE FILE COPY f

1 kI TOLEDO EDISON December 27, 1977 L77-443 FILE:

RR.2 (NP-33-77-100)

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

Mr. James G. Keppler

-) D Regional Director, Region III w

Gifice of Inspection and Enforcement

-:g %

U. S. Nuclear Regulatory Commission

- j 799 Roosevelt Road fi. T U,C,W l

s@'

Glen Ellyn, Illinois 60137 e,

Dear Mr. Keppler:

'"-[G Reportable Occurrence NP-33-77-100

~#

Davis-Besse Nuclear Power Station Unit 1 Date of Occurrence:

December 1, 1977 Enclosed find three copies of Licensee Event Report NP-33-77-100 with a supple-mental information sheet, which is being submitted in accordance with Technical

,m Specification 6.9 to provide 30 day written notification of the subjact occur-(d

) rence.

Yours truly, Wh#

Terry D. Murray Station Superintendent Davis-Besse Nuclear Power Station TDM/JRL/1jk 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

-nEC 0 01977 Information and Program Control Enc 1:

3 copies Licensee Event Report 3 copies Supplemental Information Sheet n

7An to6Xv:r5 m

800204 G 6 THE TOLEDO EDISCN COMPANY EDISCN PLAZA 3CO MADISCN AVENCE TCLECO, CHIO 13552

.