ML17157C076

Responds to Requesting Temporary Waiver of Compliance for Isolation Actuation Instrumentation W/Rcwu Sys at Plant.Waiver Granted W/Stated Conditions

ML17157C076
Person / Time
Site:	Susquehanna
Issue date:	11/18/1992
From:	Hehl C NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To:	Keiser H PENNSYLVANIA POWER & LIGHT CO.
References
NUDOCS 9211240101
Download: ML17157C076 (3)

Text

Docket Nos. 50-388 Mr. Harold W. Keiser Senior Vice President - Nuclear Pennsylvania Power &Light Company Two North Ninth Street Allentown, Pennsylvania 18101

SUBJECT:

TEMPORARY WAIVEROF COMPLIANCERELATED TO THE RWCU SYSTEM ISOLATIONACTUATIONINSTRUMENTATION This letter is in response to your request to waive compliance with Technical Specification 3.3.2, as described in your November 17, 1992, letter requesting a Temporary Waiver of Compliance for the Isolation Actuation Instrumentation associated with the Reactor Water Cleanup (RWCU) system at the Susquehanna Steam Electric Station, Unit 2. A copy of your letter is attached.

After careful consideration of this issue, the NRC, with both Region I and NRR concurrence, concluded that (1) the restoration of the RWCU system while the instrumentation is being repaired willnot cause a significant reduction in the margin of safety relative to previously evaluated accidents, and (2) the relief granted willnot put the plant into an unsafe condition.

At 7:30 pm on November 17, 1992, a Temporary Waiver of Compliance was granted verbally for the restoration of the RWCU system while the "B" channel of the RWCU High Flow isolation actuation instrumentation was being repaired.

This Temporary Waiver of Compliance is a 3-day (up to 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />) exception to the RWCU system isolation requirement contained in Technical Specification 3.3.2, Table 3.3.2-1, Action 23, with the following conditions:

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The diverse and redundant RWCU line break detection logic described in your letter remains operable. Ifthis condition is not met during the 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> period, then the actions required by Technical Specification 3.3.2 shall be followed and the NRC will be notified.

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You notify the NRC upon exit from the temporary waiver period, This Temporary Waiver of Compliance expires on November 20, 1992, at 7:30 p.m. If during the conduct of the instrument repairs you find that the instrumentation can not be returned to service within the 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> time period, I understand that you willcontact the Region I Office.

9211240101 921118 PDR ADOCK 05000388 PDR

Ifyour understanding of this issue is different than described above, please contact this office immediately.

Sincerely,

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Charles W. Hehl Division of Reactor Projects

Enclosure:

As stated cc w/attachment:

J. M. Kenny, Nuclear Licensing H. G. Stanley, Superintendent of Plant-SSES R. G. Byram, Vice President, Nuclear Operations M. M. Urioste, Nuclear Services Manager R. M. Peal, Supervisor, Nuclear Compliance H. D. Woodeshick, Special Office of the President J. C. Tilton, III, Allegheny Electric Cooperative, Inc.

Public Document Room (PDR)

Local Public Document Room (LPDR)

Nuclear Safety Information Center (NSIC)

K. Abraham, PAO NRC Resident Inspector Commonwealth of Pennsylvania

bcc w/encl:

Region I Docket Room (with concurrences)

E. Wenzinger, DRP J. White, DRP J. Calvo, NRR V. McCree, OEDO J. Raleigh, NRR, Project Manager C. Hehl, DRP W. Hodges, DRS R. Cooper, DRSS C. Miller, PDI-2, NRR B. Norris, DRP D. Holody, EO RI:DRP BNorris 11

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