April 19th, 2011 – NISA/TEPCO Meeting – Status of #4 SFP – JNES/Sandia LAb MELCOR Results

From:Wittick, Brian
Sent:Tuesday, April 19, 2011 7:22 AM
To:Wittick, Brian; Doane, Margaret; Mamish, Nader
Cc:LIA08 Hoc; LIA02 Hoc; Foggie, Kirk; Abrams, Charlotte; Emche, Danielle
Subject:Read out from 4/19 meetings
Attachments:Meeting results 4-19.docx


Attached please find the results of the Tuesday meetings.



Summary – 4/19

The NISA/TEPCO meeting was largely a meeting discussing the equipment schematics for the temporary emergency cooling systems. The group also discussed current status of the three plants and #4 SFP, which remain largely unchanged.

Of note, the Ambassador requested we inquire as to the status of the “Bechtel pumping system” the NRC worked to provide to TEPCO early in the accident. We were informed the pumping system has been placed in a standby status in case they are needed as a backup.

Subgroup Engineering Meeting

The subgroup meeting reviewed the MELCOR results completed by JNES and Sandia Lab.

The PRA analysts had a lively discussion debating the finer points of what may have happened during the accident sequences. I guess this is why Nei refers to them as the “Excitement Group.”

I mostly got a sore neck from my head bobbing

Other Activities:

Nakagawa from JNES requested a luncheon between Chuck Casto and METI’s Mitsumata (Director of Nuclear Energy Policy Planning Division). We are working to set that up for early next week.

DOSDOE legal team arrives Wednesday for Thursday discussion with MOFA on nuclear related assistance.

See email forwarded separately.

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