ML12037A061

E-mail from P. Boyle, NRR to A. Howe, NRR, Et Al; Subject: FW: Request for North Anna Information

ML12037A061
Person / Time
Site:	North Anna
Issue date:	08/25/2011
From:	Patrick Boyle Plant Licensing Branch II
To:	Howe A, Louise Lund Division of Operating Reactor Licensing
References
FOIA/PA-2011-0357
Download: ML12037A061 (3)

Text

Boyle, Patrick From: Boyle, Patrick Sent: Thursday, August 25, 2011 10:35 AM To: Howe, Allen; Lund, Louise

Subject:

FW: Request for North Anna Information Attachments: RCorreia Aug 24.docx; CHunter 8 25 11 North Anna Questions.pdf This is sounding like some of the task force stuff impacting current operating plants as mentioned during the staff meeting on Monday.

From: Martin, Robert *\"A, Sent: Thursday, August 25, 2011 10:31 AM To: MacDonald, George Cc: Kolcum, Gregory; McCoy, Gerald; Hunter, Christopher; Wilson, George; Giiter, Joseph; Kulesa, Gloria; Boyle, Patrick

Subject:

Request for North Anna Information Rich Correia, Office of Research, requests information as in the first attachment. Chris Hunter specified more details as in the second attachment.

In discussing it with the Senior Resident, he indicated that you/your group are likely to have already compiled much of the requested information. If so, could you respond to RES's request for information?

I considered requesting this from the licensee staff but refrained due to the burdens they are already responding to including the upcoming hurricane this weekend.

A comment regarding item 2 in C. Hunter's questions is that I understand the 2H DG was repaired but was not immediately returned to Operability, due to other higher priority items at the time. It was considered available and later the post-maintenance test activities were completed. If you can elaborate on that, it could be useful.

From: Correia, Richard To: Giitter, Joseph; Howe, Allen Sent: Wed Aug 24 09:15:41 2011

Subject:

N Anna info Joe, Allen, Do you have any information on the sequence of events that occurred at N. Anna yesterday when and after the earthquake hit? My ASP/PRA folks are interested and would like to evaluate the event. I'm not asking for anything to be created but if there is information you could share we would be grateful.

Thx Rich Richard Correia, PE Director, Division of Risk Analysis Office of Nuclear Regulatory Research US NRC richard.correia@ nrc.gov

From: Hunter, Christopher \jj.Ljv To: Martin. Robert Cc: Demoss. Gary; Shen. Song-hua

Subject:

North Anna Questions Date: Thursday, August 25, 2011 10:06:50 AM Thanks Bob for your help. The main questions/information we are looking for right now is:

1. When was EDG 2H secured and the SBO diesel aligned to the 2H safety bus?

2. When was offsite power restored to the safety buses? When could it have been (i.e., was there damage that would have prevented it from being restored within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> of the LOOP and prior to the battery depletion time)?

3. What safety equipment was out of service at the time (I saw the mention of the TDAFW pump be out, was it readily recoverable)?

4. Have we verified the battery depletion time of 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />?