ML042960474

E-mail from Gerald Sowers to David P. Loveless, Subject Gas Turbine Failures

ML042960474
Person / Time
Site:	Palo Verde
Issue date:	06/29/2004
From:	Sowers G Arizona Public Service Co
To:	David Loveless Office of Nuclear Reactor Regulation
References
FOIA/PA-2004-0307
Download: ML042960474 (2)

Text

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From: <GSOWERS©apsc.com>

To: <dplnrc.gov>

Date: Tue, Jun 29, 2004 2:35 PM

Subject:

Gas Turbine Failures David, I said I would send more descriptive data on our gas turbine failures.

The numbers may not be completely consistent with what I provided earlier because we have changed rules for counting valid demands and failures. They should be similar.

Failure to Start Year Demands Failures 1993 16 3 1994 63 6 1995 54 3 1996 80 6 1997 73 3 1998 47 4 1999 33 0 2000 48 3 2001 35 0 2002 33 0 2003 44 0 2004 8 0 Failure to Run Year Failures 1993 0 1994 0 1995 0 1996 2 1997 0 1998 0 1999 0 2000 0 2001 0 2002 0 2003 1 2004 0 Gerald W. Sowers PRA Section Leader Palo Verde Nuclear Generating Station Phone: 623-393-5647 gsowers © apsc.com CC: <WHARNDEN @apsc.com>, <MHULET~apsc.com>, <BLINDQUI @apsc.com>

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__J_ __ rage Ii Ul rau David, I said I would send more descriptive data on our gas turbine failures.

The numbers may not be completely consistent with what I provided earlier because we have changed rules for counting valid demands and failures. They should be similar.

Failure to Start Year Demands Failures 1993 16 3 1994 63 6 1995 54 3 1996 80 6 1997 73 3 1998 47 4 1999 33 0 2000 48 3 2001 35 0 2002 33 0 2003 44 0 2004 8 0 Failure to Run Year Failures 1993 0 1994 0 1995 0 1996 2 1997 0 1998 0 1999 0 2000 0 2001 0 2002 0 2003 1 2004 0 Gerald W. Sowers PRA Section Leader Palo Verde Nuclear Generating Station Phone: 623-393-5647 gsowers@apsc.com