March 16th, 2011 – Abnormal noise emanating from nearby pressure suppression chamber

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From: Ferrante, Fernando 1~#
Sent: Wednesday, March 16, 2011 8:59 AM
To: Ferrante, Fernando
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Press Release (Mar 16,2011)

Transfer of Fukushima Dai-ichi Power Station Workers

At approximately 6:00 today, an abnormal noise began emanating from nearby the pressure suppression chamber of Fukushima Dai-ichi Power Station.
Given that the pressure within this chamber had decreased, it was believed that this was an indication that an abnormality had arisen. From this point on, while water injection operations are still underway, the temporary transfer to a safe place of TEPCO employees and workers from other companies not directly involved with this work has begun. Currently, at Fukushima Dai-ichi Power Station, the remaining workers are doing their best to secure the safety and security of the site.

The parameters for Unit 2’s nuclear containment vessel and the containment vessel show no significant change.

We are aware of and sincerely apologize for the great distress and inconvenience this incident has caused to not just those inhabitants residing in the immediate vicinity but also society at large.

Thank you,

Fernando Ferrante, Ph.D.
Office of Nuclear Reactor Regulation (NRR)
Division of Risk Assessment (DRA)
PRA Operational Support Branch (APOB)
Mail Stop: 0-10C15
Phone: 301-415-8385
Fax: 301-415-3577

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