ML070780545: Difference between revisions
StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
StriderTol (talk | contribs) (StriderTol Bot change) |
||
(2 intermediate revisions by the same user not shown) | |||
Line 16: | Line 16: | ||
=Text= | =Text= | ||
{{#Wiki_filter:+ EnEet-gy I CONDITION REPORT Originator: | {{#Wiki_filter:+ EnEet-gy I CONDITION REPORT CR-PNP-2002-09283 Originator: Helms,Ralph E Originator Phone: 8957 Originator Group: Maint Mechanical Mgmt Operability Required: Y Reportability Required: Y Supervisor Name: T.Fox Discovered Date: 02/27/2002 01:35 Initiated Date: 02/27/2002 02:23 Condition | ||
Helms,Ralph E Originator Group: Maint Mechanical Mgmt Supervisor Name: T.Fox Discovered Date: 02/27/2002 01 :35 | |||
== Description:== | == Description:== | ||
Unable to reassemble E-l22B, "B" TBCCW Heat Exchanger Channel Head end due to leakage at Salt Service Water (SSW) isolation valves. Suspect MO-3805 and / or 29-HO-3833 are leaking by. (This was problem was originally identified on 2/26/02 (90100 hrs.) First attempt on 2/26/02 (90430 hrs. appeared to stop leakage but the drain path was not checked prior to manipulations so it was unclear whether it was the valve(s) or tide level. | Unable to reassemble E-l22B, "B"TBCCW Heat Exchanger Channel Head end due to leakage at Salt Service Water (SSW) isolation valves. Suspect MO-3805 and / or 29-HO-3833 are leaking by. | ||
This was during Low Tide. No further manipulations were conducted and flow was again present at 1000 hrs. during High tide. Attempts to stop SSW leakage during the dayshift through the Low Tide were also unsuccessful. Lost production time / manhours and increased equipment out of service time (>24 hrs.) due to this issue. Also, if isolation is obtained during a Low Tide, reassembly will require going through two (2) additional Low Tides due to piping configuration and adequate time for reassembly of Channel Head and Cover onto E-122B. | (This was problem was originally identified on 2/26/02 (90100 hrs.) First attempt on 2/26/02 (90430 hrs. appeared to stop leakage but the drain path was not checked prior to manipulations so it was unclear whether it was the valve(s) or tide level. | ||
This was during Low Tide. | |||
No further manipulations were conducted and flow was again present at 1000 hrs. during High tide. Attempts to stop SSW leakage during the dayshift through the Low Tide were also unsuccessful. | |||
Lost production time / manhours and increased equipment out of service time (>24 hrs.) due to this issue. | |||
Also, if isolation is obtained during a Low Tide, reassembly will require going through two (2) additional Low Tides due to piping configuration and adequate time for reassembly of Channel Head and Cover onto E-122B. | |||
Immediate Action | Immediate Action | ||
== Description:== | == Description:== | ||
Notified OPS and attempted to stop SSW flow but unsuccessful. Re-attempt(s) to stop leakage will be perfomed during Low Tide. Suggested Action | Notified OPS and attempted to stop SSW flow but unsuccessful. | ||
Re-attempt(s) to stop leakage will be perfomed during Low Tide. | |||
Suggested Action | |||
== Description:== | == Description:== | ||
NESG to review history of maintenance conducted on these valves and forward recommentation for repair | NESG to review history of maintenance conducted on these valves and forward recommentation for repair / replacement of these valves. | ||
/ replacement of these valves. | |||
' Entergy I ADMIN CR-PNP-2002-09283 Initiated Date: 2/27/2002 2:23 Owner Group :Eng Sys Mgmt Current | |||
2/27/2002 2:23 Owner Group | |||
:Eng Sys Mgmt Current Contact: | ==Contact:== | ||
Current Significance: | Current Significance: C - CORRECTION Closed by: Walker,James 0 4/2/2002 10:12 Summary | ||
C - CORRECTION Closed by: Walker,James 0 | |||
== Description:== | == Description:== | ||
Line 46: | Line 48: | ||
== Description:== | == Description:== | ||
PR=EF E-122B | |||
'B' TBCCW HEAT EXHANGER CHANNEL HEAD SSW MO-3805 29-HO-3833 Closure | PR=EF E-122B 'B' TBCCW HEAT EXHANGER CHANNEL HEAD SSW MO-3805 29-HO-3833 Closure | ||
== Description:== | == Description:== | ||
S e e CA#l. Close CR per CRG. | |||
Enfwgy OperabilityVersion: | |||
1 Operability Code: | Enfwgy | ||
ADMIN - NA Immediate Report Code: | ~~~ | ||
NOT REPORTABLE Performed By: Perry,Douglas C Approved By: | OPERABILITY 1 CR-PNP-2002-09283 OperabilityVersion: 1 Operability Code: ADMIN - NA Immediate Report Code: NOT REPORTABLE Performed By: Perry,Douglas C 02/27/2002 04: 11 Approved By: Perry,Douglas C 02/27/2002 04: 16 Operability | ||
Perry,Douglas C Operability | |||
== Description:== | == Description:== | ||
Operability not applicable | Operability not applicable Approval Comments: | ||
Resolution should include consideration of MO-3805 IST requirements should that valve be determined to be leaking. | Resolution should include consideration of MO-3805 IST requirements should that valve be determined to be leaking. | ||
A | |||
NON-SIGNIFICANT Owner Group: | - En-w I A SSI GNMENTS I CR-PNP-2002-09283 Version: 1 Significance Code: C - CORRECTION Classification Code: NON-SIGNIFICANT Owner Group: Eng Sys Mgmt Performed By: Buckley,Patricia A 02/28/2002 12:29 Assignment | ||
Eng Sys Mgmt Performed By: Buckley,Patricia A Assignment | |||
== Description:== | == Description:== | ||
Evaluate for corrective action. | Evaluate for corrective action. | ||
1 Report Number: Report Code: | |||
NOT REPORTABLE Boilerplate Code: NOT REPORTABLE Performed By : Brennion,Carl S Reportability | - EnfeeY I REPORTABILITY I CR-PNP-2002-09283 Reportability Version: 1 Report Number: | ||
Report Code: NOT REPORTABLE Boilerplate Code: NOT REPORTABLE Performed By : Brennion,Carl S 02/27/2002 10:13 Reportability | |||
== Description:== | == Description:== | ||
Not reportable - This event does not meet the screening criteria of WI 3.06-01. | Not reportable - This event does not meet the screening criteria of WI 3.06-01. | ||
: Eng Sys Mech Staff | |||
Buckley,Patricia A Performed By: Gaedtke,Joseph R Subperformed By: Approved By: Closed By: Gaedtke,Joseph R | CA Number: 1 | ||
03/30/2002 Initial Due Date: | ~ Group I! | ||
03/30/2002 CA Type: CORRECTIVE ACTION Plant Constraint: | I Name I Assigned By: CRG Mgmt Assigned To: Eng Sys Mech Staff Lamoureux,Joseph R Subassigned To : Eng Sys Mech Staff GaedtkeJoseph R Originated By: Buckley,Patricia A 2/28/2002 12:35:57 Performed By: Gaedtke,Joseph R 3/29/2002 13:06:28 Subperformed By: | ||
NONE CA | Approved By: | ||
Closed By: Gaedtke,Joseph R 3/29/2002 13:06:28 Current Due Date: 03/30/2002 Initial Due Date: 03/30/2002 CA Type: CORRECTIVE ACTION Plant Constraint: NONE CA | |||
== Description:== | == Description:== | ||
Review the issues regarding the inability to reassemble E-l22B, "B" TBCCW Heat Exchanger Channel Head end. Develop an action plan and assign required corrective actions as appropriate to address this issue. Response | Review the issues regarding the inability to reassemble E-l22B, "B" TBCCW Heat Exchanger Channel Head end. Develop an action plan and assign required corrective actions as appropriate to address this issue. | ||
Please review issues and assign corrective actions as required to other NESG groups, such as components, to ecaluate valves to assist in dvelopment of plan. | |||
===Response=== | |||
& E-122B Heat Exchangers. A TIC was submitted by the SSW System Engineer to recommend replacement of this valve during RF0#13. The TIC was later rejected and the valve was not replaced. The SSW System "B" Loop was drained during RF0#13 a replacement valve was on-hand and this valve could have been replaced without impacting the Outage Schedule. | Please review issues and assign corrective actions as required to other NESG groups, such as components, to ecaluate valves to assist in dvelopment of plan. | ||
MR02101255 - PERFORM 2.2.31.1, EVALUATED LEAKAGE PAST MO-3805 - This | |||
Enftygy CORRECTIVE ACTION CR-PNP-2002-09283 Complete isolation of E-122B for maintenance was primarily affected by leakage past the seat of MO-3805 ("B" TBCCW/SSW Discharge Valve). This leakage was previously identified on 5/7/00 under MR10001079 by the SSW System Engineer during troubleshooting for macrofouling concerns of E-209A, E-209B, E-122A & E-122B Heat Exchangers. A TIC was submitted by the SSW System Engineer to recommend replacement of this valve during RF0#13. The TIC was later rejected and the valve was not replaced. The SSW System "B" Loop was drained during RF0#13 a replacement valve was on-hand and this valve could have been replaced without impacting the Outage Schedule. | |||
B. COOLIDGE/R.W. | MR02101255 - PERFORM 2.2.31.1, EVALUATED LEAKAGE PAST MO-3805 - This M R was closed on 1/30/02 - | ||
M CCUE 01/29/2002. | Leakage was found to be acceptable - Operations performing leak verification indicated by hearing a vacuum vs. experiencing a fluid leak, and determined that this leakage would not affect the isolation of E-122B for maintenance. | ||
MR10001079 - VALVE LEAKS BY ITS SEAT - This MR was later cancelled on 1/29/02. It was cancelled due to evaluation results of MR02101255 above CANCEL, VALVE WAS TESTED UNDER MR02101255 BY O P S WHICH DETERMINED/VERIFIED LEAKAGE TO BE ACCEPTABLE. | |||
B. COOLIDGE/R.W. M CCUE 01/29/2002. | |||
M R #02104125 written on 2/28/02 to identify seat leakage and the difficulty obtaining isolations of E-122B. | |||
MO-3805 LEAKED BY IT'S SEAT WITH IT TAKEN UP TIGHT MANUALLY WITH HANDWHEEL SEAT LEAKAGE This MR has been approved by Outage Management to replace this leaking valve in RF0#14. | |||
PM#POOOO715 Scheduled for (10/20/04 due & dead) - MOV PM ON MO-3805 IAW 8.4.3-8.1 (SMB-000). | |||
can be worked at the same time that the valve is being replaced. This task and the replacement of the valve can be worked together and the valve seat limit stops can be set with the valve out of the adjacent piping spools. This work will assist the craft in verifying that the limit stops are properly set and that the seat did not travel beyond its normally closed position. | can be worked at the same time that the valve is being replaced. This task and the replacement of the valve can be worked together and the valve seat limit stops can be set with the valve out of the adjacent piping spools. This work will assist the craft in verifying that the limit stops are properly set and that the seat did not travel beyond its normally closed position. | ||
This valve as last replaced on 11/1/94 under MR19300991. It is possible that the limit stops were improperly set and the valve disc traveled beyond its closed position. | This valve as last replaced on 11/1/94 under MR19300991. It is possible that the limit stops were improperly set and the valve disc traveled beyond its closed position. If this was the case, damage to the Rubber Lined body (seat) could have occurred. Inspection of the existing valve when it is removed should indicate this condition. | ||
If this was the case, damage to the Rubber Lined body (seat) could have occurred. Inspection of the existing valve when it is removed should indicate this condition. | In Summary: Replacement of this valve (MO-3805) during RF0#14 should address future on-line isolations of SSW to E-122B "B"TBCCW Leakage past this valve will not affect its safety function to go to 10% open durning in an acident condition. | ||
In Summary: Replacement of this valve (MO-3805) during RF0#14 should address future on-line isolations of SSW to E-122B "B" TBCCW Leakage past this valve will not affect its safety function to go to 10% open durning in an acident condition. This CA has been presented to CRG for closure to MR02104125. CRG has approved this CA to be closed to MR02104125. | This CA has been presented to CRG for closure to MR02104125. CRG has approved this CA to be closed to MR02104125. | ||
No further action is required. | No further action is required. | ||
Closure Comments:}} | Closure Comments:}} |
Latest revision as of 18:43, 13 March 2020
ML070780545 | |
Person / Time | |
---|---|
Site: | Pilgrim |
Issue date: | 02/27/2002 |
From: | Entergy Corp |
To: | Office of Nuclear Reactor Regulation |
References | |
CR-PNP-2002-09283 | |
Download: ML070780545 (7) | |
Text
+ EnEet-gy I CONDITION REPORT CR-PNP-2002-09283 Originator: Helms,Ralph E Originator Phone: 8957 Originator Group: Maint Mechanical Mgmt Operability Required: Y Reportability Required: Y Supervisor Name: T.Fox Discovered Date: 02/27/2002 01:35 Initiated Date: 02/27/2002 02:23 Condition
Description:
Unable to reassemble E-l22B, "B"TBCCW Heat Exchanger Channel Head end due to leakage at Salt Service Water (SSW) isolation valves. Suspect MO-3805 and / or 29-HO-3833 are leaking by.
(This was problem was originally identified on 2/26/02 (90100 hrs.) First attempt on 2/26/02 (90430 hrs. appeared to stop leakage but the drain path was not checked prior to manipulations so it was unclear whether it was the valve(s) or tide level.
This was during Low Tide.
No further manipulations were conducted and flow was again present at 1000 hrs. during High tide. Attempts to stop SSW leakage during the dayshift through the Low Tide were also unsuccessful.
Lost production time / manhours and increased equipment out of service time (>24 hrs.) due to this issue.
Also, if isolation is obtained during a Low Tide, reassembly will require going through two (2) additional Low Tides due to piping configuration and adequate time for reassembly of Channel Head and Cover onto E-122B.
Immediate Action
Description:
Notified OPS and attempted to stop SSW flow but unsuccessful.
Re-attempt(s) to stop leakage will be perfomed during Low Tide.
Suggested Action
Description:
NESG to review history of maintenance conducted on these valves and forward recommentation for repair / replacement of these valves.
' Entergy I ADMIN CR-PNP-2002-09283 Initiated Date: 2/27/2002 2:23 Owner Group :Eng Sys Mgmt Current
Contact:
Current Significance: C - CORRECTION Closed by: Walker,James 0 4/2/2002 10:12 Summary
Description:
Remarks
Description:
PR=EF E-122B 'B' TBCCW HEAT EXHANGER CHANNEL HEAD SSW MO-3805 29-HO-3833 Closure
Description:
S e e CA#l. Close CR per CRG.
Enfwgy
~~~
OPERABILITY 1 CR-PNP-2002-09283 OperabilityVersion: 1 Operability Code: ADMIN - NA Immediate Report Code: NOT REPORTABLE Performed By: Perry,Douglas C 02/27/2002 04: 11 Approved By: Perry,Douglas C 02/27/2002 04: 16 Operability
Description:
Operability not applicable Approval Comments:
Resolution should include consideration of MO-3805 IST requirements should that valve be determined to be leaking.
- En-w I A SSI GNMENTS I CR-PNP-2002-09283 Version: 1 Significance Code: C - CORRECTION Classification Code: NON-SIGNIFICANT Owner Group: Eng Sys Mgmt Performed By: Buckley,Patricia A 02/28/2002 12:29 Assignment
Description:
Evaluate for corrective action.
- EnfeeY I REPORTABILITY I CR-PNP-2002-09283 Reportability Version: 1 Report Number:
Report Code: NOT REPORTABLE Boilerplate Code: NOT REPORTABLE Performed By : Brennion,Carl S 02/27/2002 10:13 Reportability
Description:
Not reportable - This event does not meet the screening criteria of WI 3.06-01.
CA Number: 1
~ Group I!
I Name I Assigned By: CRG Mgmt Assigned To: Eng Sys Mech Staff Lamoureux,Joseph R Subassigned To : Eng Sys Mech Staff GaedtkeJoseph R Originated By: Buckley,Patricia A 2/28/2002 12:35:57 Performed By: Gaedtke,Joseph R 3/29/2002 13:06:28 Subperformed By:
Approved By:
Closed By: Gaedtke,Joseph R 3/29/2002 13:06:28 Current Due Date: 03/30/2002 Initial Due Date: 03/30/2002 CA Type: CORRECTIVE ACTION Plant Constraint: NONE CA
Description:
Review the issues regarding the inability to reassemble E-l22B, "B" TBCCW Heat Exchanger Channel Head end. Develop an action plan and assign required corrective actions as appropriate to address this issue.
Response
Please review issues and assign corrective actions as required to other NESG groups, such as components, to ecaluate valves to assist in dvelopment of plan.
Enftygy CORRECTIVE ACTION CR-PNP-2002-09283 Complete isolation of E-122B for maintenance was primarily affected by leakage past the seat of MO-3805 ("B" TBCCW/SSW Discharge Valve). This leakage was previously identified on 5/7/00 under MR10001079 by the SSW System Engineer during troubleshooting for macrofouling concerns of E-209A, E-209B, E-122A & E-122B Heat Exchangers. A TIC was submitted by the SSW System Engineer to recommend replacement of this valve during RF0#13. The TIC was later rejected and the valve was not replaced. The SSW System "B" Loop was drained during RF0#13 a replacement valve was on-hand and this valve could have been replaced without impacting the Outage Schedule.
MR02101255 - PERFORM 2.2.31.1, EVALUATED LEAKAGE PAST MO-3805 - This M R was closed on 1/30/02 -
Leakage was found to be acceptable - Operations performing leak verification indicated by hearing a vacuum vs. experiencing a fluid leak, and determined that this leakage would not affect the isolation of E-122B for maintenance.
MR10001079 - VALVE LEAKS BY ITS SEAT - This MR was later cancelled on 1/29/02. It was cancelled due to evaluation results of MR02101255 above CANCEL, VALVE WAS TESTED UNDER MR02101255 BY O P S WHICH DETERMINED/VERIFIED LEAKAGE TO BE ACCEPTABLE.
B. COOLIDGE/R.W. M CCUE 01/29/2002.
M R #02104125 written on 2/28/02 to identify seat leakage and the difficulty obtaining isolations of E-122B.
MO-3805 LEAKED BY IT'S SEAT WITH IT TAKEN UP TIGHT MANUALLY WITH HANDWHEEL SEAT LEAKAGE This MR has been approved by Outage Management to replace this leaking valve in RF0#14.
PM#POOOO715 Scheduled for (10/20/04 due & dead) - MOV PM ON MO-3805 IAW 8.4.3-8.1 (SMB-000).
can be worked at the same time that the valve is being replaced. This task and the replacement of the valve can be worked together and the valve seat limit stops can be set with the valve out of the adjacent piping spools. This work will assist the craft in verifying that the limit stops are properly set and that the seat did not travel beyond its normally closed position.
This valve as last replaced on 11/1/94 under MR19300991. It is possible that the limit stops were improperly set and the valve disc traveled beyond its closed position. If this was the case, damage to the Rubber Lined body (seat) could have occurred. Inspection of the existing valve when it is removed should indicate this condition.
In Summary: Replacement of this valve (MO-3805) during RF0#14 should address future on-line isolations of SSW to E-122B "B"TBCCW Leakage past this valve will not affect its safety function to go to 10% open durning in an acident condition.
This CA has been presented to CRG for closure to MR02104125. CRG has approved this CA to be closed to MR02104125.
No further action is required.
Closure Comments: