ML091400027: Difference between revisions

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| number = ML091400027
| number = ML091400027
| issue date = 10/24/2008
| issue date = 10/24/2008
| title = McGuire, Canopy Seal Weld Overlay RR
| title = Canopy Seal Weld Overlay RR
| author name = Ashe K L
| author name = Ashe K
| author affiliation = Duke Energy Carolinas, LLC
| author affiliation = Duke Energy Carolinas, LLC
| addressee name = Stang J F
| addressee name = Stang J
| addressee affiliation = NRC/NRR/DORL/LPLII-1
| addressee affiliation = NRC/NRR/DORL/LPLII-1
| docket = 05000369, 05000370
| docket = 05000369, 05000370
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=Text=
=Text=
{{#Wiki_filter:From: Ashe, Ken [Ken.Ashe@duke-energy.com] Sent: Friday, October 24, 2008 8:55 AM To: John Stang  
{{#Wiki_filter:From:                   Ashe, Ken [Ken.Ashe@duke-energy.com]
Sent:                   Friday, October 24, 2008 8:55 AM To:                     John Stang


==Subject:==
==Subject:==
RE: McGuire canopy seal weld overlay RR John, In response to your questions, here is the information you requested:  
RE: McGuire canopy seal weld overlay RR
(1) Discuss to which ASME Code section and/or subsections that the welding procedures are qualified? Was a mockup prepared for the welding procedure qualification?
: John, In response to your questions, here is the information you requested:
 
(1) Discuss to which ASME Code section and/or subsections that the welding procedures are qualified? Was a mockup prepared for the welding procedure qualification?
Welding Procedures were qualified in accordance with ASME Section IX. WSI performed a mock-up at McGuire in which they used their WPS A08165 rev F and weld traveler to exercise their welding equipment, procedures, and operators. Following a successful mockup they performed welding of the canopy seal weld.  
Welding Procedures were qualified in accordance with ASME Section IX. WSI performed a mock-up at McGuire in which they used their WPS A08165 rev F and weld traveler to exercise their welding equipment, procedures, and operators. Following a successful mockup they performed welding of the canopy seal weld.
  (2) The licensee mentioned Code Case N-740 as discussed in the Structural Integrity Associates' report. Code Case N-740 allows the ambient temperature temper bead welding. Is the ambient temperature temper beading welding used to repair the canopy seal?   The base materials for the CRDM housing are austenitic stainless steel. Temperbead technique was not required and was not used for welding these materials.
(2) The licensee mentioned Code Case N-740 as discussed in the Structural Integrity Associates' report. Code Case N-740 allows the ambient temperature temper bead welding. Is the ambient temperature temper beading welding used to repair the canopy seal?
 
The base materials for the CRDM housing are austenitic stainless steel.
Temperbead technique was not required and was not used for welding these materials.
(3) The licensee stated that it will use the GTAW weld process. Discuss whether it is the manual or automatic GTAW.
(3) The licensee stated that it will use the GTAW weld process. Discuss whether it is the manual or automatic GTAW.
WSI used what ASME Section IX calls Machine Welding GTAW process.  
WSI used what ASME Section IX calls Machine Welding GTAW process.
 
Please let me know if you have any additional questions or need more information.
Please let me know if you have any additional questions or need more information.
Thanks!!!!
Thanks!!!!
Ken Ashe Regulatory Compliance Manager McGuire Nuclear Station Office (704) 875-4535, Cell (704) 281-2796 klashe@duke-energy.com E-mail Properties Mail Envelope Properties (ECBB4AFE1A85EE4A8539EEC0F02851621A326C05)  
Ken Ashe Regulatory Compliance Manager McGuire Nuclear Station Office (704) 875-4535, Cell (704) 281-2796 klashe@duke-energy.com E-mail Properties Mail Envelope Properties (ECBB4AFE1A85EE4A8539EEC0F02851621A326C05)


==Subject:==
==Subject:==
RE: McGuire canopy seal weld overlay RR Sent Date:       5/19/2009 3:26:27 PM Received Date:       1/1/4501 From:               Ashe, Ken  
RE: McGuire canopy seal weld overlay RR Sent Date:     5/19/2009 3:26:27 PM Received Date:       1/1/4501 From:           Ashe, Ken Created By:       Ken.Ashe@duke-energy.com Recipients:
 
Created By:         Ken.Ashe@duke-energy.com  
 
Recipients:
John.Stang@nrc.gov (John Stang)
John.Stang@nrc.gov (John Stang)
Tracking Status: None  
Tracking Status: None Post Office:
 
IMCLUSEXCP50.nam.ent.duke-energy.com Files         Size     Date & Time MESSAGE         8257     5/19/2009 Options Expiration Date:
Post Office:
Priority:               olImportanceNormal ReplyRequested:        False Return Notification:     False Sensitivity:     olNormal Recipients received:}}
IMCLUSEXCP50.nam.ent.duke-energy.com  
 
Files               Size       Date & Time  
 
MESSAGE       8257       5/19/2009  
 
Options Expiration Date:
Priority:                       olImportanceNormal ReplyRequested:        False Return Notification:       False  
 
Sensitivity:         olNormal Recipients received:}}

Latest revision as of 06:41, 14 November 2019

Canopy Seal Weld Overlay RR
ML091400027
Person / Time
Site: Mcguire, McGuire  Duke Energy icon.png
Issue date: 10/24/2008
From: Ashe K
Duke Energy Carolinas
To: Stang J
Plant Licensing Branch II
Thompson Jon, NRR/DORL/LPL 2-1, 415-1119
References
Download: ML091400027 (1)
v • d • e


Text

From: Ashe, Ken [Ken.Ashe@duke-energy.com]

Sent: Friday, October 24, 2008 8:55 AM To: John Stang

Subject:

RE: McGuire canopy seal weld overlay RR

John, In response to your questions, here is the information you requested:

(1) Discuss to which ASME Code section and/or subsections that the welding procedures are qualified? Was a mockup prepared for the welding procedure qualification?

Welding Procedures were qualified in accordance with ASME Section IX. WSI performed a mock-up at McGuire in which they used their WPS A08165 rev F and weld traveler to exercise their welding equipment, procedures, and operators. Following a successful mockup they performed welding of the canopy seal weld.

(2) The licensee mentioned Code Case N-740 as discussed in the Structural Integrity Associates' report. Code Case N-740 allows the ambient temperature temper bead welding. Is the ambient temperature temper beading welding used to repair the canopy seal?

The base materials for the CRDM housing are austenitic stainless steel.

Temperbead technique was not required and was not used for welding these materials.

(3) The licensee stated that it will use the GTAW weld process. Discuss whether it is the manual or automatic GTAW.

WSI used what ASME Section IX calls Machine Welding GTAW process.

Please let me know if you have any additional questions or need more information.

Thanks!!!!

Ken Ashe Regulatory Compliance Manager McGuire Nuclear Station Office (704) 875-4535, Cell (704) 281-2796 klashe@duke-energy.com E-mail Properties Mail Envelope Properties (ECBB4AFE1A85EE4A8539EEC0F02851621A326C05)

Subject:

RE: McGuire canopy seal weld overlay RR Sent Date: 5/19/2009 3:26:27 PM Received Date: 1/1/4501 From: Ashe, Ken Created By: Ken.Ashe@duke-energy.com Recipients:

John.Stang@nrc.gov (John Stang)

Tracking Status: None Post Office:

IMCLUSEXCP50.nam.ent.duke-energy.com Files Size Date & Time MESSAGE 8257 5/19/2009 Options Expiration Date:

Priority: olImportanceNormal ReplyRequested: False Return Notification: False Sensitivity: olNormal Recipients received:

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