ML17333A431
| ML17333A431 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 04/19/1996 |
| From: | Fitzpatrick E INDIANA MICHIGAN POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| AEP:NRC:1224B1, NUDOCS 9604260187 | |
| Download: ML17333A431 (5) | |
Text
REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)
ACCESSION NBR:9604260187 DOC.DATE: 96/04/19 NOTARIZED: NO FACIL:50-315 Donald C.
Cook Nuclear Power Plant, Unit 1, Indiana M
50-316 Donald C.
Cook Nuclear Power Plant, Unit 2, Indiana M
AUTH.NAME AUTHOR AFFILIATION FITZPATRICK,E.E Indiana Michigan Power Co.
RECIP.NAME RECIPIENT AFFIIIATION Document Control Branch (Document Control Desk)
SUBJECT:
Provides follow-up to 951011 response to NOV in insp rept 95-09.Procedural guidance s shift training provided to operating crew to reduce power immediately in response to any confirmed loss of vacuum condition, DISTRIBUTION CODE:
IE01D COPIES RECEIVED:LTR
)
ENCL 0 SIZE:
TITLE: General (50 Dkt)-Insp Rept/Notice of Violation Response NOTES:
DOCKET 05000315 05000316 RECIPIENT ID CODE/NAME PD3-1 PD INTERNAL: AEOD/SPD/RAB DEDRO NRR/DISP/PIPB NRR/DRPM/PECB NUDOCS-ABSTRACT OGC/HDS2 ERNAL: LITCO BRYCE,J H
NRC PDR COPIES LTTR ENCL 1
1 1
1 1
1 RECIPIENT ID CODE/NAME HICKMAN,J ILE CENTER NRR DRCH/HHFB NRR/DRPM/PERB OE DIR RGN3 FILE 01 NOAC COPIES LTTR ENCL 0
R Y'
E N
NOTE TO ALL "RIDS" RECIPIENTS:
PLEASE HELP US TO REDUCE WASTEl CONTACT THE DOCUMENT CONTROL DESK, ROOM OWFN 5D-5(EXT. 415-2083)
TO ELIMINATE YOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!
(
TOTAL NUMBER OF COPIES REQUIRED:
LTTR 17 ENCL
t ll
indiana Michigan Power Company PO Box 16631 Columbus, OH 43216 Z
lNblANA hllCHIGAN POWER April 19, 1996 Docket Nos.:
50-315 50-316 AEP'NRC'1224B1 U.
S. Nuclear Regulatory Commission ATTN:
Document Control Desk Washington, D.
C.
20555 Gentlemen:
Donald C.
Cook Nuclear Plant Units 1 and 2
NRC INSPECTION REPORTS NO. 50-315/95009 (DRP)
AND 50-316/95009 (DRP)
FOLLOW-UP RESPONSE TO NOTICE OF VIOLATION This letter is a follow-up to our response to the Notice of Violation contained in Inspection Report
¹95009, forwarded to Indiana Michigan Power in a letter from W.
L.
Axelson dated September 12, 1995.
The original notice cited three examples of failure to follow procedures, of which one involved operators not reducing power during a loss of main turbine condenser vacuum transient.
In the response provided in AEP:NRC:1224B, dated October ll, 1995, we stated that we considered the actions to be taken for the loss of main condenser vacuum to be an open issue.
We committed to continue our evaluation of this event to determine the most appropriate actions for loss of main condenser vacuum.
This evaluation has been completed.
Our evaluation concluded that the decision to not decrease power in response to the loss of vacuum was not in line with our conservative operating philosophy, or with that of the industry in general.
Consequently, we have provided procedural guidance and shift training to direct the operating crew to reduce power immediately in response to any confirmed loss of vacuum condition.
This results in actions more in keeping with our conservative operating philosophy and minimizes the magnitude of the transient should the need to trip the plant arise.
We have also determined the need for a 'apid shutdown'rocedure to guide operating crews for conditions in which a rapid power reduction would be prudent.
To meet this need, a rapid shutdown procedure has been developed for the Donald C. Cook Nuclear Plant, and training on this procedure has commenced.
96042bOi87 960419 PDR ADOCK 05000315 8
PDR z~P1
U.
S. Nuclear Regulatory Commission Page 2
AEP:NRC:1224B1 This event has provided us with the o ortu oppo ty o
o p
an ra n ng and to improve upon them.
In summ consider it appropriate that the o en i em.
n summary, we a e at t e open tern on the loss of condenser e c ose with our actions.
Sincerely,
<<Hr <
Vice President llg CC:
A. A. Blind G. Charnoff H. J. Miller NFEM Section Chief NRC Resident Inspector
- Bridgman J.
R. Padgett
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