ML17334A640
| ML17334A640 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 01/27/1998 |
| From: | Fitzpatrick E INDIANA MICHIGAN POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| AEP:NRC:1202F, NUDOCS 9802020173 | |
| Download: ML17334A640 (4) | |
Text
CATEGORY 1 REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)
'ACCESSION NBR:9802020173 DOC.DATE: 98/01/27 NOTARIZED: NO DOCKET 'N FACIL~g.-,~15 Donald C.
Cook Nuclear Power Plant, Unit 1, Indiana:M 05000315 50-316 Donald C.
Cook Nuclear Power Plant, Unit 2, Indiana M
05000316 AUTH.NAME AUTHOR AFFILXATION FITZPATRICK,E.
American Electric Power Co., Inc.
RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)
SUBJECT:
Submits recpxest to withdraw refueling operations decay time Tech Spec amend. Changes will resubmitted in follow-up ltr.
DISTRXBUTXON CODE:
A001D COPIES RECEIVED:LTR ENCL SIZE:
TITLE: OR Submittal: General Distribution NOTES:
INTERNAL:
RECIPIENT ID CODE/NAME PD3-3 LA HICKMAN,J NRR DE EMCB NRR/DSSA/SPLB NUDOCS-ABSTRACT COPIES LTTR ENCL 1
1 1
1 RECIPIENT ID CODE/NAME PD3-3 PD NRR/DE/ECGB/A NRR/DRCH/HICB NRR/DSSA/SRXB OGC/HDS2 COPIES LTTR ENCL E
0 EXTERNAL: NOAC NRC PDR D
U E
N NOTE TO ALL "RIDS" RECIPIENTS:
PLEASE HELP US TO REDUCE WASTE. TO HAVE YOUR NAME OR ORGANIZATION REMOVED FROM DISTRIBUTION LISTS OR REDUCE THE NUMBER OF COPIES RECEIVED BY YOU OR YOUR ORGANIZATION, CONTACT THE DOCUMENT CONTROL DESK (DCD)
ON EXTENSION 415-2083 TOTAL NUMBER OF COPXES REQUIRED: LTTR 13 ENCL
Indiana Michigan Power Company 500 Circle Drive Buchanan, Ml 49107 1395 INSMNA MCMSAN PQWM January 27, 1998 AEP:NRC:1202F Docket Nos.:
50-315 50-316 U. S. Nuclear Regulatory Commission ATTN:
Document Control Desk Mail Station 0-Pl-17 Washington, D.C.
20555 Gentlemen:
Donald C.
Cook Nuclear Plant Units 1 and 2
REQUEST TO WITHDRAW THE REFUELING OPERATIONS DECAY TIME TECHNICAL SPECIFICATION AMENDMENT REQUEST In our submittal AEP:NRC:1202, dated November 16, 1994, "Refueling Operations Decay Time Technical Specification Amendment Request",
we requested a change in the plant technical specifications (T/Ss) to modify T/S 3.9.3 for both units.
This change was to allow the start of core offload 100 hours0.00116 days <br />0.0278 hours <br />1.653439e-4 weeks <br />3.805e-5 months <br /> after core subcriticality instead of the 168 hours0.00194 days <br />0.0467 hours <br />2.777778e-4 weeks <br />6.3924e-5 months <br /> currently specified.
Concerns were raised during the recent architect engineering inspection that indicate analyses should assume a loss-of-coolant accident (LOCA) on the operating unit concurrent with a full core discharge to the spent fuel pool (SFP).
A LOCA on the operating unit would cause an isolation of the operating unit's component cooling water flow to the SFP heat exchanger, leaving a single SFP cooling train available.
This would, therefore, preclude the use of the 100 hour0.00116 days <br />0.0278 hours <br />1.653439e-4 weeks <br />3.805e-5 months <br /> T/S amendment because its supporting analyses indicate a need for two SFP cooling trains for full core discharges proceeding at 100 hours0.00116 days <br />0.0278 hours <br />1.653439e-4 weeks <br />3.805e-5 months <br /> after shutdown.
We have chosen to withdraw this submittal because we desire to maintain the option of performing regular full core discharges to the SFP.
Consistent with our current T/Ss, dicharges to the SFP will occur no sooner than 168 hours0.00194 days <br />0.0467 hours <br />2.777778e-4 weeks <br />6.3924e-5 months <br /> after shutdown.
Cycle-specific analyses have confirmed that full core discharges performed to date have required only a single SFP cooling train.
Certain editorial changes and boral surveillance clarifications described in the submittal are still requested.
These changes will be resubmitted in a follow-up letter.
Sincerely, pMV)
E... E. Fitzpatrick Vice President
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U.S. Nuclear Regulatory Commission Page 2
AEP: NRC: 1202F J.
A. Abramson A. B. Beach MDEQ -
DW 6c RPD NRC Resident Inspector J.
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