ML13163A264

from Larry Doerflein to Charles Miller: Task Force Question

ML13163A264
Person / Time
Site:	FitzPatrick
Issue date:	05/11/2011
From:	Doerflein L Office of Nuclear Reactor Regulation
To:	Chris Miller Division of Reactor Safety I
References
FOIA/PA-2013-0010
Download: ML13163A264 (1)

Text

Doerflein, Lawrence From: Doerflein, Lawrence Sent: Wednesday, May 11, 2011 7:23 AM To: Miller, Charles Cc: Miller, Chris; Wilson, Peter; Knutson, Ed; Kulp, Jeffrey; Scholl, Larry; Cook, William; Cahill, Christopher; Schmidt, Wayne

Subject:

Task Force Question

Charlie, Is your task force (or maybe you know of a longer term effort that will) looking at Mark 1 containment venting?

The TI - 183 inspections have noted that FitzPatrick does not have the classic harden vent. The pipe from thE torus simply goes to SBGTS. If containment was vented, standby gas is likely lost; and ifthere's a H2 detonation, the SBGTS building will be damaged. We accepted this design several years ago. The question is, does that licensing basis decision need to be revisited?

~Outside of Scope It would be a tremendous help if I could say in the TI report that the agency is re-evaluating/reviewing Mark 1 containment venting issues.

Let me know what you think.

Regards, Larry I. clg;),