ML102920130

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Email - from: Orf, Tracy to Lake, Louis Dated Tuesday, December 08, 2009 6:29 Am Subject: FW: Updated CR3 Root Cause Chart Attachments: Root Cause Update for Nrc.Pptx
ML102920130
Person / Time
Site: Crystal River Duke Energy icon.png
Issue date: 12/08/2009
From: Orf T
Plant Licensing Branch II
To: Lake L
NRC/RGN-II/DRS/EB3
References
FOIA/PA-2010-0116
Download: ML102920130 (2)


Text

Sengupta, Abhijit From: Sent: To:

Subject:

Attachments:

Orf, Tracy Tuesday, December 08, 2009 6:29 AM Lake, Louis FW: Updated CR3 Root Cause Chart Root Cause Update for NRC.pptx _From: McCabe, Brian [mailto: Brian. McCabe@pgnmail.com]

Sent: Monday, December 07, 2009 7:27 AM To: Sykes, Marvin; Wert, Leonard; Kennedy, Kriss; Orf, Tracy;

Subject:

Updated CR3 Root Cause Chart Saba, Farideh Root Cause Analysis -PII Metrics as of Dec 3rd 2009 Open Failure Modes 80 70 60 50-40-30-20 10 0 Kra L"(C s (ý) Operational Events* (C C ir Ir) Inadequate Containment itting) Inadequate Concrete -Tendon teractions) Chemically or Environmentally duced Aging) External Eventsl* (4) Shrinkage, Creep and Settlement

  • l () Inadequate Use of Concrete Materials I L-1 0(C Inadequate Concrete ,nstruction UlA A A A A A A A A A C ( C; CIP .We 'e q'e~vv~ '~c[](1) Inadequate Concrete Design due to High Local Stress V Progress Energy 1