ML20236T922
| ML20236T922 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 04/13/1987 |
| From: | Diederich G COMMONWEALTH EDISON CO. |
| To: | Davis A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| NUDOCS 8712020169 | |
| Download: ML20236T922 (1) | |
Text
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s Commonwh Edison O'
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c LaSalle County Nuclear Station PRIORITY ROU11pG i
Rural Route G1, Box 220
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MN April 13, 1987 Mr. A. Bert Davis Regional Administrator
. Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137 l.
Dear Sir:
This special report is submitted in accordance with fasallo7 Unit 1 Operating License NPF-11, Appendix A and LaSalle Unit 2 Operat'ing Lice'nse NPF-18, Appendix A, Technical Specification Table 3.3.7.5-1 and 6.6.c.
Due to the installation of an Auxiliary Sample Pump on the Standby Gas Treatment Wide Range Gas Monitor, Modification M-1-0-86-023 (Work Request l
L59319), it was necessary to declare this system inoperable on March 30, 1987, l
at 0430 hours0.00498 days <br />0.119 hours <br />7.109788e-4 weeks <br />1.63615e-4 months <br />.
1 In accordance with Technical Specification Table 3.3.7.5-1 and Action Statement 81, an alternate method of monitoring appropriate parameters must be initiated within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />. The method implemented was the installation of an l
Auxiliary Sampling Skid at the Wide Range Gas Monitor test taps, to sample in the event Standby Gas Treatment were to start.
On April 6, 1987, at 0430 hours0.00498 days <br />0.119 hours <br />7.109788e-4 weeks <br />1.63615e-4 months <br />, the Standby Gas Tieatment Wide Range Gas Monitor had been out of service in excess of the 7 days allowed by Action Statement 81 prior to requiring a special report. The Standby Gas Treatment Wide Range Gas Monitor was returned to service following the closeout of the modification package on April 6, 1987, at 2210 hours0.0256 days <br />0.614 hours <br />0.00365 weeks <br />8.40905e-4 months <br />, approximately 17 hours1.967593e-4 days <br />0.00472 hours <br />2.810847e-5 weeks <br />6.4685e-6 months <br />
.. and 40 minutes after the 7-day timeclock had elapsed.
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G. J. Diederich Station Manager l
LaSalle County Station GJD/AML/kg i
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U.S. Document Control Desk INPO - Records Center
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