ML20128L106
| ML20128L106 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 07/19/1985 |
| From: | Russell L BALTIMORE GAS & ELECTRIC CO. |
| To: | Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| NUDOCS 8507240301 | |
| Download: ML20128L106 (2) | |
Text
..
BALTIMORE G AS AND ELECTRIC COMPANY P.O. BO X 14 7 5 B A LTI M O R E. M A R YL A N D 21203 NUCLEAR POWER DEPARTMENT
$ssY," dan'd[w*o"7EsY" ~""
^\\
\\
July 19,1985 Dr. Thomas E. Murley Regional Administrator U. S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406
SUBJECT:
Calvert Cliffs Nuclear Power Plant Unit 1 Wide Range Noble, Gas Effluent Monitor Inoperable
Dear Dr. Murley:
On March 5,1985, the Main Vent Wide Range Noble Gas (WRNGM) Effluent Monitor was declared inoperable and Action Statement 3.3.3.1b entered, consistent with the recently received Technical Specifications for this System.
The action required by 3.3.3.1b, if the System operability cannot be restored in seven days, is to prepare and submit a Special Report to the Commission pursuant to Specification 6.9.2. That report was submitted to you on April 4,1985.
As stated in the report, the reason for the inoperability was a failed GA Technologies RM-23 keyboard module wnich is used to control radiation detection sensors and to process and store signals. This module was returned to GA Technologies for repair.
Recently, the module was returned by GA Technologies who indicated the module was functioning properly. The module was installed in the System and it would not function properly. The manufacturer has been requested to send a representative to the plant to effect on-site repairs and is expected to arrive on July 22,1985.
4 l
8507240301 850719 PDR ADOCK 05000317 S
PDR ll60l ll d
s.
" gr.
Dr. Thomas E. Murley U. S. Nuclear Regulatory Commission July 19,1985 Due to the failure, the System is stillinoperable and the preplanned alternate method of monitoring is in effect. This alternate method is covered in Calvert Cliffs Emergency Response Plan Implementation Procedure (ERPIP) No. 4.4.3/Rev. 8.
Title:
Initial Determination of Accident Radioactivity Release Rates.
Sincerely, L. B. Russell i
Plant Superintendent LBR/pah ec:
Director, Office Management Information and Program Control Mr. A. E. Lundvall Mr. J. A. Tiernan
o-
-e Dr. Thomas E. Murley U. S. Nuclear Regulatory Commission June 6,1985 Page 2 bec:
Mr. T. Magette Mr. J. M. Moreira Mr. T. Foley Mr. J. W. Raynor Mr. R. F. Ash Mr. L. B. Russell Mr. M. E. Roberson Mr. P. D. Sierer Mr. S. E. Jones, Jr.
Dr. F. J. Munno Mr. W. T. Lyons INPO Records Center
~ Mrs. E. K. Bewley American Nuclear Insurers Mr. R. M. Douglass o
3
-