ML20212E324

Revised PNO-OSP-87-013:util Indicated Desire to Conduct non- Nuclear heat-up of Plant,Unit 2 Before Restart of Plant

ML20212E324
Person / Time
Site:	Sequoyah
Issue date:	11/13/1987
From:	Donohew J, Mccoy F NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To:
References
PNO-OSP-87-013, PNO-OSP-87-13, NUDOCS 9711030149
Download: ML20212E324 (1)

Text

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[PRELIMINARYNOTIFICATIONOFEVENTORUNUSUALOCCURRENCEPNO-OSP-87-13 REVISED L PER MR. KEPP ER 1This preliminary notification constitutes EARLY notice of events of POSSIBLE d

xh safety received pelipJ iqtprest or wi'thout p,ignificance.

Wriffellion or evaluation, Theand information is as is basically allinitially that is known by the Region 11 staff on this date.

. FACILITY: Tennessee Valley Authority Licensee Emergency Classification:

Sequoyah Unit 2 Notification of Unusual Event Docket No. 50-328 Alert Site Area Emergency General-Emergency X Not Applicable

SUBJECT:

NON NUCLEAR HEATUP OF SEQUOYAH UNIT 2 TVA has indicated to the Office of Special Projects (OSP) its desire to conduct a non-nuclear heat-up (to Modes 4 and 3 Hot Shutdown and Hot Standby) of Sequoyah Unit 2 before the restart of the plant. Although there is fuel in the core, this non-nuclear heatup would use the plant's Reactor Coolant Pumps as

-the source of heat. Accordingly, the reactor will remain _subcriti_ cal. This ,

preliminary heatup would allow for the performance of required hot operational testing of both primary and secondary. plant systems, early identification of

" cold layup" related equipment problems, and would enable operations personnel to get familiar with hot cperations again. The plant would remain-hot for a specified period and then return to cold shutdown (Mode 5) to complete all remaining restart work. TVA is preparing to conduct valve lineups and is r discussing'with the staff the work which must-be completed before heatup. The 0SP staff has informed TVA that it will require compliance with all applicable-1

-Technical Specifications during the heat-up unless appropriate exemptions are

.obtained. Also, the staff will require TVA to femally document the basis to

. justify their compliance with the TSs. The stari will issue an SER prior to-heatup; -The major issue delaying heatup-is the repair of about 90 pipe hangers.

TVA anticipates that this work will be completed by the end of November with-heatup in December.

This PN is being issued for infomation purposes only.

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Contact:

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J. Donohew. 492-7292 I

l F. McCoy, 242-5525 l DISTRIBUTION H 5treet MNBB Phillips LEW W111ste Mail Chaiman Zech IDU- NRR OSP NM55 XDRIDMB

- Conn. Roberts PA 01A RES D0T: Trans Only Comm. Asselstine MPA AEOD Applicable State Comm.:Bernthal ES NRF Conn. Carr OGC Air Rights INPO SECY NRR ACRS CA Regions:

R' Licensee:

(Reactor Licenses)

]NN, Applicable Pesident Site 97y10g49871113 PMO-OSP-87-013 PDR

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