ML12047A377

E-mail from R. Martin, NRR to M. Cullingford, NRR Re North Anna Earthquake

ML12047A377
Person / Time
Site:	North Anna
Issue date:	09/12/2011
From:	Martin R E Plant Licensing Branch II
To:	Cullingford M Division of Inspection and Regional Support
References
FOIA/PA-2011-0357
Download: ML12047A377 (1)

Text

Boyle, Patrick y e From: Martin, Robert Sent: Monday, Septemer 12, 2011 9:13 AM To: Cullingford, Michael Cc: Kulesa, Gloria; Boyle, Patrick; Khanna, Meena

Subject:

FW: North Anna Earthquake Its premature to respond to the question.

Mark Franke is the Team Leader for the ongoing AIT.From: Franke, Mark k Sent: Monday, September 12, 2011 9:11 AM To: Martin, Robert; McCoy, Gerald

Subject:

Re: North Anna Earthquake Agree -Root cause still in progress This email is being sent from an NRC mobile device.From: Martin, Robert To: McCoy, Gerald; Franke, Mark Sent: Mon Sep 12 08:52:45 2011

Subject:

FW: North Anna Earthquake Its premature to answer this, isn't it, since the licensee's root cause analysis is still underway and the AIT's evaluation of same isn't complete either?From: Cullingford, Michael Sent: Monday, September 12, 20118:33 AM To: Martin, Robert Cc: Manoly, Kamal

Subject:

North Anna Earthquake Robert: Could you please provide me with an answer to the question below (from the Japanese regulator) or tell me who Ishould ask. Thank you, Mike From: Hidehiko Yamachika

[1]

Sent: Friday, September 09, 2011 4:08 PM To: Cullingford, Michael

Subject:

RE: WNN Daily: Nuclear regulation bill introduced to Indian parliament Could you let me know what is the direct cause of their reactors' shut-down?

Considering news paper and press release of NRC, there are two possibilities for the shut-down.

1. Observed actual seismic acceleration, which triggered directly shut-down.

2. Outer line outrage triggered turbine trip followed by reactor shut-down.

I do not find clear explanation on the direct cause of the shut-down in these materials.

@yamachika 1//