ML18067A756

Forwards LER 97-010-00 Re Inadequacy of App R Analysis. Commitments Made by Util,Listed

ML18067A756
Person / Time
Site:	Palisades
Issue date:	10/30/1997
From:	Thomas J. Palmisano CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML18067A757	List: ML18067A756 ML18067A758
References
NUDOCS 9711050108
Download: ML18067A756 (2)

Text

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                                                                                           ; _y    *;~. :~  :--s..: ]J]5 Thoma* J. Palmisano Site Vice President October 30, 1997 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555 DOCKET 50-255 - LICENSE DPR PALISADES PLANT LICENSEE EVENT REPORT 97-010 - INADEQUACY IN'8H,13J.:J~.QJ2S~fi~NALYSIS RESULTS IN A CONDITION OUTSIDE THE DESIGN BASIS OF THE PLANT Licensee Event Report (LER) 97-010 is attached. This event is reportable to the NRC in accordance with 10 CFR 50.73(a)(2)(ii)(B) as a condition outside the plant design basis. This condition was found during a planned review of the 10 CFR 50, Appendix R program engineering analyses. This review determined an analysis contained errors which could potentially place the plant in a scenario which was not addressed with approved procedures.

In 1994, an Appendix R Enhancement Plan was established at Palisades to reconstitute Appendix R design bases. Implementing this Plan resulted in the ( II development of a number of new engineering analyses. This LER condition was identified during validation of these analyses; an effort which is ongoing. ti') ~~~

SUMMARY

OF COMMITMENTS ~~- 0'-0 This letter contains two new commitments and no revisions to existing commitments. -f'  !) { _,.,.,...,..--* ./

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~~ 1. A revision to the circuit and raceway schedule and to the schematic diagram will 08 be completed to identify the cable in the Atmospheric Steam Dump Valves ~< (ASDV) circuit that is routed from control panel EC01 to control panel EC 12.

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2. The Appendix R Engineering Analysis will be updated with the results of the evaluation that four ASDVs and the Turbine Bypass Valve (TBV) could possibly

      *open in the postulated fire scenario.
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Thomas J. Palmisano Site Vice-President CC Administrator, Region 111, USNRC Project Manager, NRR, USNRC NRC Resident Inspector - Palisades Attachment}}