PNO-III-97-022, on 970311,Unit 1 Reactor Shut Down to Repair Reactor Protection Sys Scram Relay Malfunction.Conservative Decision Made to Repair Relay While Shutdown Rather than Troubleshoot During Power Operations: Difference between revisions
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L | L RECElVED March 12, 1997 MNl2M3M PRELIMINARY NOTIFICATION OF EVENT OR URUSHAC 0%CURij@CE0BNp-III-97-022 This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance. The information is as initially received without verification or evaluation, and is basically all that is known by Region III staff (Lisle. Illinois) on this date. | ||
RECElVED March 12, 1997 MNl2M3M PRELIMINARY NOTIFICATION OF EVENT OR URUSHAC 0%CURij@CE0BNp-III-97-022 This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance. The information is as initially received without verification or evaluation, and is basically all that is known by Region III staff (Lisle. Illinois) on this date. | Facility Licensee Emergency Classification Commonwealth Edison Co. | ||
Facility | Notification of Unusual Event Quad Cities 1 Alert Cordova, Illinois Site Area Emergency Dockets: 50-254 General Emergency X Not Applicable' | ||
==Subject:== | ==Subject:== | ||
REACTOR SHUTDOWN TO REPAIR REACTOR PROTECTION SYSTEM ~ | REACTOR SHUTDOWN TO REPAIR REACTOR PROTECTION SYSTEM ~.J On March 11, 1997, the Unit 1 reactor was shut down to repair a reactor protection system scram relay malfunction. A conservative decision was made to repair the relay while shutdown rather than troubleshoot during power operations. | ||
Other repair activities scheduled during the forced shutdown include: | Other repair activities scheduled during the forced shutdown include: | ||
repair of position indication for several turbine valves and bypass valves, repair of a steam sealing system valve, and minor heater bay steam leak repairs. | repair of position indication for several turbine valves and bypass valves, repair of a steam sealing system valve, and minor heater bay steam leak repairs. | ||
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==Contact:== | ==Contact:== | ||
CHRIS MILLER | CHRIS MILLER PAT HILAND (309)654-2227 (630)829-9603 9705050334 970312' PDR I&E PNO-III-97-022 PDR-lbh 1 | ||
PNO-III-97-022 PDR-lbh | 1}} | ||
{{PNO-Nav|region=III}} | {{PNO-Nav|region=III}} | ||
Latest revision as of 19:36, 11 December 2024
| ML20138F306 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 03/12/1997 |
| From: | Hiland P, Chris Miller NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| References | |
| PNO-III-97-022, PNO-III-97-22, NUDOCS 9705050334 | |
| Download: ML20138F306 (1) | |
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L RECElVED March 12, 1997 MNl2M3M PRELIMINARY NOTIFICATION OF EVENT OR URUSHAC 0%CURij@CE0BNp-III-97-022 This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance. The information is as initially received without verification or evaluation, and is basically all that is known by Region III staff (Lisle. Illinois) on this date.
Facility Licensee Emergency Classification Commonwealth Edison Co.
Notification of Unusual Event Quad Cities 1 Alert Cordova, Illinois Site Area Emergency Dockets: 50-254 General Emergency X Not Applicable'
Subject:
REACTOR SHUTDOWN TO REPAIR REACTOR PROTECTION SYSTEM ~.J On March 11, 1997, the Unit 1 reactor was shut down to repair a reactor protection system scram relay malfunction. A conservative decision was made to repair the relay while shutdown rather than troubleshoot during power operations.
Other repair activities scheduled during the forced shutdown include:
repair of position indication for several turbine valves and bypass valves, repair of a steam sealing system valve, and minor heater bay steam leak repairs.
The repairs are scheduled for about 4 days, with return to service planned for the evening of March 15. 1997.
The State of Illinois will be informed. The information in this preliminary notification has been reviewed with licensee management.
Region III (Chicago) received the information on the decision to shut down on March 10, 1997.
This information is current as of 4:00 p.m. on March 11, 1997.
Contact:
CHRIS MILLER PAT HILAND (309)654-2227 (630)829-9603 9705050334 970312' PDR I&E PNO-III-97-022 PDR-lbh 1
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