ML18054A595

Submits Update to Action Items Supporting 860521 Confirmatory Action Ltr Re Diesel Generator,Lube Oil Temp & Switch.Items Scheduled for 1988 Refueling Outage But Not Completed

ML18054A595
Person / Time
Site:	Palisades
Issue date:	03/20/1989
From:	Johnson B CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
CAL, NUDOCS 8903270302
Download: ML18054A595 (5)

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consumers Power POWERING MICHIGAN'S PROGRESS General Offices: 1945 West Parnell Road, Jackson, Ml 49201 * (517) 788-0550 March 20, 1989 Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 DOCKET 50-255 - LICENSE DPR PALISADES PLANT -

UPDATE TO ACTION ITEMS SUPPORTING THE MAY 21, 1986 CONFIRMATORY ACTION LETTER In material presented to the NRC during the February 17, 1989 Quarterly Update Meeting at Region III Headquarters, Consumers Power committed to provide the NRC with an update on the status of action items supporting the May 21, 1986 Confirmatory Action Letter. These action items are identified in IEIR 86035 and our responses to the NRC dated December 1, 1986, January 28, 1987, September 14, 1987 and October 30, 1987. They incorporate the Material Condition Task Force, the System Functional Evaluation, the Safety System Functional Inspection and a total of 1,270 action items. As of this date, 71 of these action items remain open.

Following the status update of Confirmatory Action Items is an update of other commitments scheduled for completion during 1988-89.

Listed below is the status of action items which were scheduled for the 1988 Refueling Outage but were not completed:

Commitment Issue Number Status Diesel Generator PR12/0l/86A-l 72 The Plant experienced historical Lube Oil Temperature PR12/0l/86A-173 nuisance problems with temperature Switch PR06/0l/87A-53 switch TS-1478. Remote and local PW09/14/87B-07 alarms below designed setpoints have occurred irregularly, most recently in July 1988. Investigations following each incident found no problem with the switch and verified that the switch would alarm at the designed

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Nuclear Regulatory Comm1ss1on 2 Palisades Plant I.

Update to Action Items March 20, 1989 setpoint. Material Condition Task Force (MCTF) recommended that the switch be replaced or the System Engineer should develop a solution which is free of repetitive failures.

A modification is planned to replace the remote mounted switch with one locally mounted. This modification will take place during the 1990 Refueling Outage, or earlier pending modification approval, switch procure-ment and installation method.

Bettis Robot Arm PR12/0l/86A-317 The MCTF recommendation indicated that Actuators PR06/01/87A-115 all Bettis actuators should be rebuilt.

All Bettis operators were rebuilt either during the 1986 Maintenance Outage or during the 1988 Refout with the exception of VOP-0846 and VOP-0857.

These were not able to be rebuilt due to mechanical interferences at their installed locations and cannot be removed without installation of alternate service water supplies to the component cooling heat exchangers.

This modification cannot be economically justified at this time. Presently the val~es stroke acceptably and stroking is insured on a continuing basis via PPAC X-OPS-281.

Restoring Original PW01/28/87C-23 These commitments required evaluation Operating Margins on PW01/28/87C-26 of alternatives to restore the original Service Water and operating margins on service water and Component Cooling component cooling water flows. A Water Flows consultant was contracted to study these issues and their report made several recommendations regarding equipment enhancements to improve reliability. Consumers Power has requested a meeting with the NRC to discuss these recommendations.

Containment Isolation PR12/0l/86A-135 This commitment was made to pursue a Valves on Hydrogen Technical Specification change to Monitoring System reduce testing frequency of the OC0389-0094-NL02

Nuclear Regulatory Comm.ion 3 Palisades Plant Update to Action Items March 20, 1989 hydrogen monitoring system containment isolation valves. Presently the valves are stroked daily and due to this frequent use, have become a high maintenance item. The majority of this maintenance is directly related to valve position indication which is accomplished through the use of reed switches. These switches come out of calibration after extensive valve stroking and cause faulty valve position indications. The restructured Technical Specifications will reduce this frequency to a quarterly bases.

Therefore, based on the restructured Technical Specifications, no actions will be taken at this time.

We also have a number of action items which were scheduled for a 1989 Maintenance Outage. Due to numerous recent forced outages, Consumers Power does not presently anticipate a Maintenance Outage in 1989. These action items are discussed below:

Commitment Number Issue PR12/0l/86A-169 These MCTF items pertain to the fuel oil supply for the PR12/0l/86A-170 diesel generators. Specifically they address the modifi-PR12/0l/86A-171 cation to connect T-926 to T-10, procurement of a spare PR06/0l/87A-50 fuel oil transfer pump and providing a secondary containment PR06/0l/87A-51 for the fuel oil storage tank. We anticipate procuring PR06/0l/87A-52 the spare pump and resolving the secondary containment issue by the end of 1989. The modification to provide additional storage capacity will be completed during the next scheduled outage of sufficient length and scope.

PR12/01/86A-297 This MCTF item was to replace the steam generator PR06/0l/87A-108 blowdown radiation monitor RIA-0707. This will still be completed by December 31, 1989 PR12/0l/86A-241 The MCTF recommended that primary loop measurement channel 1 PR12/0l/86A-254 temperature/pressure recorder, PTR-0115 and primary loop measurement channel 2 temperature/pressure recorder PTR-0125 be upgraded. During the 1988 Refueling Outage, functionally identical recorders were installed as part of a core cooling modification. PTR-0115 and PTR-0125 will be removed during the next outage of sufficient length and scope.

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Nuclear Regulatory 4 Palisades Plant Update to Action Items March 20, 1989 The status updates listed below relate to issues outside the scope of the Confirmatory Action Letter:

Commitment Issue Number Status Level Indicating PR01/22/86A-Ol In our supplemental response dated System for Safety PR04I11/86C-01 April 11, 1986 to IEIR 85027, we Injection Tanks indicated that we would notify the NRC if we decided not to modify the safety injection tank level indicating system as previously committed. This modification would have included relocating the lower instrument tap and thereby excluding the SIT outlet pipe as an instrument reference leg.

Since repairs have been made to reduce in-leakage, we feel that this modification is unnecessary. We have decided, however, to modify the floats for the SIT level switches to increase the operating band for acceptable water levels in the SITs.

This will also necessitate a change to the Technical Specifications.

This modification will be completed during the 1990 Refueling Outage.

Adequacy of Minimum PW07/07/88B-04 In our response to NRC Bulletin 88-04 Flow Lines for dated July 7, 1988, we committed to Auxiliary Feedwater develop a testing program to establish Pumps the exact minimum flow rate required for AFW pump P-8C. This was to be completed during or before the 1989 Maintenance Outage. The test will be written by September 1, 1989 and the test run during the first outage of sufficient length and scope.

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Palisades Plant Update to Action Items March 20, 1989 Nuclear Regulatory Commission 5 The NRC will be notified if changes are made to any of the above action items.

Brian D Johnson Staff Licensing Engineer CC Administrator, Region III; NRC NRC Resident Inspector - Palisades OC0389-0094-NL02