ML030370243

E-mail from T Alexion to D Millar at ANO-1, Unit 2 Regarding Extension of Emergency Diesel Generator (EDG) Allowed Outage Time (AOT)

ML030370243
Person / Time
Site:	Arkansas Nuclear
Issue date:	01/21/2003
From:	Alexion T NRC/NRR/DLPM/LPD4
To:	Millar D Entergy Nuclear Operations
Jaffe D, NRR/DLPM, 415-1439
Shared Package
ML030420086	List: ML030370171 ML030370172 ML030370238 ML030370243 ML030370253 ML030370275 ML030370298
References
Download: ML030370243 (3)

Text

Page 11 I Thomas Alexion - RAI FOR EDG/AOT EXTENSION From:

Thomas Alexion To:

DMILLAR @entergy.com; SBENNE2@entergy.com Date:

1/21103 4:27PM

Subject:

RAI FOR EDG/AOT EXTENSION Dana, Steve, See the attached.

Tom

REQUEST FOR ADDITIONAL INFORMATION EXTENSION OF EMERGENCY DIESEL GENERATOR ALLOWABLE OUTAGE TIME ARKANSAS NUCLEAR ONE, UNIT 2

1.

Please describe the methodology used to generate the external events risk numbers, including the final numbers generated for each external event. If aspects of the external events analysis approach used in this application are substantially different from the methods described in previous recent applications (e.g., the power uprate application),

please explain and justify the use of the different approach.

2.

For the fire analyses, as an alternative to justifying the use of a different approach discussed in Question I above, the licensee could describe how this application would impact each of the unscreened fire quadrant analyses and results identified in the June 28, 2001, letter to the U.S. Nuclear Regulatory Commission (NRC) regarding its power uprate application. The NRC staff notes that in this letter, the licensee identified 17 unscreened fire quadrants involving 15 fire areas and provided the associated post uprate core damage frequency for each quadrant.

I C:\\WINDQWS\\TEMP\\GWIOOOO1.TMP Paie 1 Mail Envelope Properties (3E2DBB4D.7FE :0: 20628)

Subject:

Creation Date:

From:

Created By:

RAI FOR EDG/AOT EXTENSION 1/21/03 4:27PM Thomas Alexion TWA@nrc.gov Recipients entergy.com DMILLAR (DMILLAR @ entergy.com)

SBENNE2 (SBENNE2 @entergy.com)

Action Transferred Date & Time 01/21/03 04:27PM Post Office Files EDG.AOT.RAI MESSAGE Options Auto Delete:

Expiration Date:

Notify Recipients:

Priority:

Reply Requested:

Return Notification:

Concealed

Subject:

Security:

To Be Delivered:

Status Tracking:

Delivered Size 2829 663 Route entergy.com Date & Time 01/21/03 04:19PM 01/21/03 04:27PM No None Yes Standard No None No Standard Immediate Delivered & Opened I C:\\WINDOWS\\TEMP\\GW1O000i.TMP Page I ý