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Root Cause Analysis - PII Metrics as of Dec 3rd 2009
	ML101170819
Person / Time
Site:	Crystal River
Issue date:	12/03/2009
From:	; Progress Energy Carolinas
To:	; Office of Information Services
References
	FOIA/PA-2010-0116
	Download: ML101170819 (1)
	v • d • e

Root Cause Analysis - PH MetriCS as of Dec 3rd2OO9 Open Failure Modes WIN 8 0 ----

(9 ) E x te rn a l E v e n ts (8) Operational Events 60 (7) Inadequate Containment Cutting N (6) Inadequate Concrete - Tendon interactions 40 --

(5) Chemically or Environmentally Induced Aging 30..

3 (4) Shrinkage, Creep and Settlement 20 --

1 (2) Inadequate Concrete Construction (1) Inadequate Concrete Design 3?p ýp 3?p 3p 3p 3'

'.g; ýe -'e',-

due toHighLocalStress N; Progress Energy I

ML101170819