ML102950205
| ML102950205 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 04/28/2010 |
| From: | Gray H NRC Region 1 |
| To: | Conte R NRC Region 1 |
| References | |
| FOIA/PA-2010-0334 | |
| Download: ML102950205 (3) | |
Text
-BUMt~ Arthur, From:
Sent:
To:
Cc:
Subject:
Gray, Harold Wednesday, April 28, 2010 5:24 PM Conte, Richard Burritt, Arthur; Modes, Michael Salem AFW questions - Conf Call 4/28/2010 PM During the HQ-RI conference call on 4/28 the following 4 questions were noted regarding the U1-U2 AFW missed buried piping IWA-5244 tests.
--For the Ul structural integrity evaluation what is the contribution of seismic induced stresses? This is to establish the magnitude of the seismic stresses in comparison to the pressure induced stresses. It is expected that the pressure induced stresses will be the dominant stress source,.
--For the U1 finite element analysis, confirm that the area of compensation for the missing material at the deepest pit ( 0.077") was within the Code caculational requirements.
--For the AFW pipe coating done on U2 determine:
What coating was put on the pipe?
How long was the coating expected to be effective?
--Does the final Operability Evaluation for the U2 AFW buried piping adequately use the known condition of the U2 AFW pipe coating and the inputs from the U1 observations, measurements and analysis to confirm operability of U2 AFW until the IWA-5244 tests are done at the next U2 RFO.
lnfowmai in tNs recora -.as i~t accOardBne wihthe Fro100 Inlormation Act.
1
Burritt, Arthur From:
Conte, Richard Sent:
Wednesday, April 28, 2010 7:21 AM To:
Ashley, Donnie; Balian, Harry; Brown, Michael; Burritt, Arthur; Cahill, Christopher; Chernoff, Harold; Gardocki, Stanley; Gray, Harold; Hardies, Robert; Hoffman, Keith; Holston, William; Lupold, Timothy; Modes, Michael; OHara, Timothy; Pelton, David; Robinson, Jay; Sanders, Carleen; Schmidt, Wayne; Schroeder, Daniel; Thorp, John Cc:
Roberts, Darrell; Clifford, James; Lew, David
Subject:
Confernece Call to Go Over Statue of Salem Unit 1 and 2 AFW Issues FW: Conference Details (APR 28, 2010--12:30 PM ET--Conf# 7623961)
Attachments:
imageQ1.gif Below summary is how to get in on conference - 245 to 400pm The conference is set up for most of the afternoon but I would like to actually start at 245pm due to Tim O'hara and my availability and Tim Luppold needs to go on to another conference at 330, I want the Component Integrity view of the the FEA done first.
I tried to summarize the TS discussion from yesterday below -I will also this email on a appointment in outlook calendars for the key internal stakeholders.
Purpose is to discussion completion status and major issues associated with documents to date related to operability and structural integrity issues related to the degraded piping found at Unit 1 and implications to Unit 2.
Success is mutual understanding for each document:
- discuss any immediiate safety concerns
- give completion status or additional needs like the document should not be draft along with next steps
- discuss major concerns related to operability and structural integrity of each unit's AFW headers past or future as applicable
- summarize other notes or issues that you feel should be addressed - ensure we have an email on details.
Lupold - Finite Element Analysis on the replaced section of No. 14 and No. 12 headers in the yard area.
Lupold - Technical Evaluation supporting the reduction in design pressure to 1275psi Conte/Burritt/Ennis/Lupold - Summarize applicable TS unit 2 in light of information form Unit 1 - willneed to document decision from yesterday
- Failure to do code pressure drop test for buried pipe violates TS 4.0.5
- which leads to TS 4.0.1 failure to do ST so take action of the applicable LCO
- (AND can't take exception of TS 4.0.3 since test was never done - see Ennis email form yesterday),
leads to TS 3.4.11 on Class 3 structural integrity section c - restore structural integrity or isolate component
- (evaluationof structural integrity may be acceptable without code relief assuming test and inspections will be 1 done in a reasonable time frame)
- LCO for AFW TS 3.7.1.2 (3 operable flow paths) not entered - data from Jan 2010 indicates the ability to deliver required flow through headers as noted in risk assessment - basis for 1.25 year exposure time on risk assessment assuming failed headers Nos. 24 and 22.
Cahill - Risk Asssessment. completed per TS 4.0.3 - might not have been needed but it may have informational value Ohara/Schroeder - Unit 2 Operability Determination I
O'Hara/Schroeder - 10 CFR 50.59 supporting the repairs to Unit 1 including pressure test results and ANI revieks O'Hara - any documentation supporting the Control Air as left situation OHara/Schroeder - past Unit Operability - distinguish yard area supported by finite element analysis vs buired section in FHB.
All - summary evaluation of structural integrity for Unit 2.
All-longer term
- coating cure time issues in Unit 1 and related limitations
- when will Unit 2 test and inspections be complete - more importantly how
- generic implications - next steps - code pressure drop/unabated flow test, TS 4.0.3 interpretaion, others?
We won't be serving dinner so we need to get done by 430 ideally 400pm.
From: Bearde, Diane Sent: Tuesday, April 27, 2010 2:59 PM To: Conte, Richard
Subject:
FW: Conference Details (APR 28, 2010--12:30 PM ET--Conf# 7623961) 1'Dial: 1-80 (b)(2)
L'asscode:.
Lines Avai.-
Confirmation No. 522272 From: confirmatlons@mymeetings.com [1]
Sent: Tuesday, April 27, 2010 2:58 PM To: Bearde,, Diane
Subject:
Conference Details (APR 28, 2010--12:30 PM ET--Conf# 7623961)
Your conference details are enclosed.
Meeting Information:
Leader:
MS DIANE BEARDE Phone number:
1-610-337-5153
Contact:
MR TYRONE DANTLEY Phone number:
1-301-415-7026 Call date:
APR-28-2010 (Wednesday)
Call time:
12:30 PM EASTERN TIME Duration:
4 hr 2