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=Text=
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{{#Wiki_filter:Sengb~pta, Ab~hijit From: Sent: To: Cc:  
{{#Wiki_filter:Sengb~pta, Ab~hijit From:                     Fagan, Paul [Paul.Fagan @pgnmail.com]
Sent:                     Monday, December 14, 2009 11:14 AM To:                       'lakelf @bellsouth.net'; Lake, Louis Cc:                       Miller, Garry


==Subject:==
==Subject:==
Attachments:
Emailing: 2009 Dec 11 - Root Cause Update for NRC.pptx         "'
Fagan, Paul [Paul.Fagan
Attachments:              2009 Dec 11 - Root Cause Update for NRC.pptx - .
@ pgnmail.com]
The message is ready to be sent with the following file or link attachments:
Monday, December 14, 2009 11:14 AM'lakelf @ bellsouth.net';
2009 Dec 11 - Root Cause Update for NRC.pptx Note: To protect against computer viruses, e-mail programs may prevent sending or receiving certain types of file attachments. Check your e-mail security settings to determine how attachments are handled.
Lake, Louis Miller, Garry Emailing:
1 rol Uý (Yý
2009 Dec 11 -Root Cause Update for NRC.pptx "'2009 Dec 11 -Root Cause Update for NRC.pptx -.The message is ready to be sent with the following file or link attachments:
 
2009 Dec 11 -Root Cause Update for NRC.pptx Note: To protect against computer viruses, e-mail programs may prevent sending or receiving certain types of file attachments.
Root Cause Analysis - P11 Metrics as of Dec 11th 2009 Open FailureModes (yet to be supported or refuted) 80                                                                                                 ) External Events 70                                                                                              (4)Operational   Events 60                                                                                            n (7) Inadequate Containment qutting 50                                                                                                ;)Inadequate Concrete - Tendon teractions 40                                                                                                ,) Chemically or Environmentally duced Aging 30                                                                                            *(4) Shrinkage, Creep and Sbttlement 20                                                                                                ) Inadequate Use of Concrete aterials 10 0
Check your e-mail security settings to determine how attachments are handled.1 rol U ý (Yý Root Cause Analysis -P11 Metrics as of Dec 11th 2009 Open Failure Modes (yet to be supported or refuted)80 70 60 50 40 30 20 10 I~I) External Events (4) Operational Events n (7) Inadequate Containment qutting;) Inadequate Concrete -Tendon teractions
J                                                    I~I H             U-
,) Chemically or Environmentally duced Aging J 0 0 o o) Inadequate Use of Concrete aterials) Inadequate Concrete onstruction
                                                                                                  ) Inadequate Concrete onstruction
*(4) Shrinkage, Sbttlement Creep and 0 H U-000 1Z 0 z c0 0 z> >0 0 z z 0 z (0 0 z 0 z d)N, 0 z (NJ (NJ> >0 0 z z CC (6> >0 0 z z C6 6 0 4, (-I 0 0 0 4 )6)4 0000 4)4)4)4)0000 I I I I 0C~(0~ '- ,-0 0 0)4)00'-NI*(1) Inadequate Concrete Design due to High Local Stress 2Progress Energy Root Cause Analysis -PII Metrics as of Dec 11th 2009 Failure Modes Identified (to date) as Potential Contributors 16 14 12 10 8 N(7 C1 0(6 TE) External Events) Operational Events) Inadequate Containment itting) Inadequate Concrete -ýndon interactions) Chemically or 6 4 2 0 E rvironmentally Induced Aging* (4) Shrinkage, Creep and S ,ttlement m (2) Inadequate Use of Concrete M aterials w (2) Inadequate Concrete C nstruction-i) Inadequate Concrete Design& Analysis (Excessive Local Stress)Iort Progress Energy isis> > > > > > > > > 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 V 0 0 0 0 0 0 0 0 0 0 0 0 0 Z Z Z Z Z Z Z Z Z a a 0 0~ al a a a' a 0 0 0 0 0 0 a0 0 a Note that wtlie there is some evidence suggesting that conditions physically exist to sup!these failure modes, they may still transition to a "Refuted" status as the root cause anal)proceeds, a d their specific contribution to the root cause is further quantified/analyzed 2}}
                      >  >        0     >  > >   > 0   0   0 0 0000            0   0
                                                                                              *(1) Inadequate Concrete Design 000 o0 o0  0  0 0 0   0 0     0 0 0   0 0 4,  4 )6)4   4)4)4)4)        0)4) 1Z            z  z  z z  z(0 z  z  z(NJ z z  z z                0000 I     I    I I 00      due to High Local Stress
(-I c0                d)
N,  (NJ CC (6 C6 6                0C~(0
                                                                    ~     '-   ,-       '-NI 2Progress Energy
 
Root Cause Analysis - PII Metrics as of Dec 11th 2009 FailureModes Identified (to date) as PotentialContributors 16                                                                                                     ) External Events 14                                                                                                      ) Operational Events N(7 12                                                                                                      ) Inadequate Containment C1itting 10 0(6
                                                                                                        ) Inadequate Concrete -
TE
                                                                                                        ýndon interactions 8                                                                                                      ) Chemically or E rvironmentally Induced Aging 6                                                                                                * (4) Shrinkage, Creep and S ,ttlement 4                                                                                                m(2) Inadequate Use of Concrete M aterials 2                                                                                                w (2) Inadequate Concrete C nstruction 0    > >   >   > > > > >   > 0   0 0 0   0   0 0 0 0 0 0 0 0 0   0   0   0   0 0 0
                                                                                                  -i) Inadequate Concrete Design 0 0   0   0 0 0 0 0 00     V 0 0   0*0*  0 0* 0  0*0 0 0 0   0   0   0  0    0  0 Z Z Z   Z Z Z Z   Z   Z   a   a 0 0~ al a   a a' a   0 0 0 0   0   0   a0   0 a   & Analysis (Excessive Local Stress)
Note that wtlie there is some evidence suggesting that conditions physically exist to sup!               Iort Progress Energy these failure modes, they may still transition to a "Refuted" status as the root cause anal) isis 2  proceeds, a d their specific contribution to the root cause is further quantified/analyzed}}

Latest revision as of 07:47, 13 November 2019

Email - from: Fagan, Paul (Paul.Fagan@Pgnmail.Com) to: Lakelf@Bellsouth.Net'; Lake, Louis Cc: Miller, Garry Dated Monday December 14, 2009 11:14 Am Subject: Emailing: 2009 Dec 11 - Root Cause Update for Nrc.Pptx Attachments: 2009 Dec 11 - R
ML102910685
Person / Time
Site: Crystal River Duke Energy icon.png
Issue date: 12/14/2009
From: Fagan C
Progress Energy Co
To: Lake L
NRC/RGN-II/DRS/EB3
References
FOIA/PA-2010-0116
Download: ML102910685 (3)
v • d • e


Text

Sengb~pta, Ab~hijit From: Fagan, Paul [Paul.Fagan @pgnmail.com]

Sent: Monday, December 14, 2009 11:14 AM To: 'lakelf @bellsouth.net'; Lake, Louis Cc: Miller, Garry

Subject:

Emailing: 2009 Dec 11 - Root Cause Update for NRC.pptx "'

Attachments: 2009 Dec 11 - Root Cause Update for NRC.pptx - .

The message is ready to be sent with the following file or link attachments:

2009 Dec 11 - Root Cause Update for NRC.pptx Note: To protect against computer viruses, e-mail programs may prevent sending or receiving certain types of file attachments. Check your e-mail security settings to determine how attachments are handled.

1 rol Uý (Yý

Root Cause Analysis - P11 Metrics as of Dec 11th 2009 Open FailureModes (yet to be supported or refuted) 80 ) External Events 70 (4)Operational Events 60 n (7) Inadequate Containment qutting 50  ;)Inadequate Concrete - Tendon teractions 40 ,) Chemically or Environmentally duced Aging 30 *(4) Shrinkage, Creep and Sbttlement 20 ) Inadequate Use of Concrete aterials 10 0

J I~I H U-

) Inadequate Concrete onstruction

> > 0 > > > > 0 0 0 0 0000 0 0

  • (1) Inadequate Concrete Design 000 o0 o0 0 0 0 0 0 0 0 0 0 0 0 4, 4 )6)4 4)4)4)4) 0)4) 1Z z z z z z(0 z z z(NJ z z z z 0000 I I I I 00 due to High Local Stress

(-I c0 d)

N, (NJ CC (6 C6 6 0C~(0

~ '- ,- '-NI 2Progress Energy

Root Cause Analysis - PII Metrics as of Dec 11th 2009 FailureModes Identified (to date) as PotentialContributors 16 ) External Events 14 ) Operational Events N(7 12 ) Inadequate Containment C1itting 10 0(6

) Inadequate Concrete -

TE

ýndon interactions 8 ) Chemically or E rvironmentally Induced Aging 6 * (4) Shrinkage, Creep and S ,ttlement 4 m(2) Inadequate Use of Concrete M aterials 2 w (2) Inadequate Concrete C nstruction 0 > > > > > > > > > 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

-i) Inadequate Concrete Design 0 0 0 0 0 0 0 0 00 V 0 0 0*0* 0 0* 0 0*0 0 0 0 0 0 0 0 0 0 Z Z Z Z Z Z Z Z Z a a 0 0~ al a a a' a 0 0 0 0 0 0 a0 0 a & Analysis (Excessive Local Stress)

Note that wtlie there is some evidence suggesting that conditions physically exist to sup! Iort Progress Energy these failure modes, they may still transition to a "Refuted" status as the root cause anal) isis 2 proceeds, a d their specific contribution to the root cause is further quantified/analyzed

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