ML042960411

E-mail from Gerald Sowers to David Loveless, Subject: FW: Gas Turbine Failures

ML042960411
Person / Time
Site:	Palo Verde
Issue date:	06/30/2004
From:	Sowers G Arizona Public Service Co
To:	David Loveless NRC Region 4
References
FOIA/PA-2004-0307
Download: ML042960411 (2)

Text

UUVIU Luveless - rVV. ads I UIU111V rUllures uaviu LVVeIebs

- rvv: .,as uru:ri r-iiiures rage 1 From:

<GSOWERS~apsc.com>

To:

<dplnrc.gov>

Date:

Wed, Jun 30, 2004 10:42 AM

Subject:

FW: Gas Turbine Failures More Data Gerald W. Sowers PRA Section Leader Palo Verde Nuclear Generating Station Phone: 623-393-5647 gsowers © apsc.com

- -----Original Message---

> From:

Sowers, Gerald W(Z90174)

> Sent:

Tuesday, June 29, 2004 12:34 PM

> To:

David Loveless (dpl~nrc.gov)

> Cc:

Harnden Jr, Willard J(Z99687); Hulet, Mark A(Z52238); Lindquist

> Jr, Robert C(Z60942)

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 Run Hours

> 1993 0

> 1994 0

> 1995 0

> 1996 2

77.4

> 1997 0

54.4

> 1998 0

37.5

> 1999 0

31.6

> 2000 0

39.3

> 2001 0

46.1

> 2002 0

36.5

>2003 1

67 J s

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raye e I

> 2004 0

7.8

> Gerald W. Sowers

> PRA Section Leader

> Palo Verde Nuclear Generating Station

> Phone: 623-393-5647

> gsowers~apsc.com CC:

<WHARNDEN@apsc.com>