ML18054B344
| ML18054B344 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 12/28/1989 |
| From: | Johnson B CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9001050228 | |
| Download: ML18054B344 (1) | |
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consumers Power POW ERi Nii NllCHlliAN'S PROliRESS General Offices: 1945 West Parnell Road, Jackson,' Ml 49201 * (517) 788-0550 December 28, 1989 Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 DOCKET 50-255 - LICENSE DPR PALISADES PLANT -
CHANGE IN COMMITMENT DATE TO RESOLVE REACTOR PROTECTION SYSTEM AUDIT CONCERNS November 9, 1988, Consumers Power Company submitted correspondence concerning results of NRC audits at Gamma-Metrics Corporation and the Palisades Plant regarding modifications being performed to upgrade the Reactor Protection System (RPS).
These audits were performed to support the NRC's issuance of a license amendment.
This correspondence listed five items that Consumers Power Company committed to complete.
The purpose of this submittal is to update the status of the second commitment, to "provide an analysis which documents that Electro-Magnetic Interference (EMI), to and from the Thermal Margin Monitor (TMM), will not affect the operation of the RPS".
The TMM, EMI Test and Analysis Project, committed to be complete by December 30, 1989, is_ 60% complete.
A detailed test procedure was developed and approved in September, 1989 in time to do the "on-line" portion of the tests before the start of the October Maintenance Outage.
However, problems with a temperature sensor resulted in one TMM being out of service for repair.
Repairs could only be completed during the Maintenance Outage.
Plant Operating procedures do not permit EMI testing to be conducted when one TMM is out of service, so "on-line" testing was delayed until after the outage.
"Off-line" testing was successfully completed during the outage.
With the Plant returned to service at 80% power, the "on-line" testing will be completed in January, 1990.
Analysis of the data will follow the testing and the final report will be submitted by March 30, 1990.
L~
Brian D Johnson Staff Licensing Engineer CC Administrator, Region III, USNRC -
NRC Resident Inspector - Palisades OC1289-0012-NL02 A CM5 ENERGY COMPANY J