ML18054B466
| ML18054B466 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 02/23/1990 |
| From: | Johnson B CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9003020232 | |
| Download: ML18054B466 (17) | |
Text
...
consumers Power l'OWERIN&
MICHl&AN'S l'RO&RESS General Offices: 1945 West Parnall Road, Jackson,'MI 49201 * (517) 788-0550 February 23, 1990 Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 DOCKET 50-255 - LICENSE DPR PALISADES PLANT -
STATUS REPORT - PASM UPGRADE ACTION LIST On August 15, 1989 Consumers Power Company submitted an update to our Action Plan for improving Post Accident Sample Monitor System (PASM) reliability.
The purpose of this correspondence is to provide you with the most recent Action Plan update and to brief you on the progress made in completing the Plan.
As of this date, 18 of the 27 upgrade items have been completed including 10 completed items since our August submittal, Please note that two items previously scheduled for 1990 have been deferred to 1991 due to parts availability and budget constraints.
During 1989, PASM panel availability stood at 97.2 percent.
PASM continues to receive strong management attention.
Brian D Johnson Staff Licensing Engineer CC Administrator, Region III, USNRC NRC Resident Inspector - Palisades Attachment Ac.MS' ENERGY COMPANY
OC0290-0015-NL02 ATTACHMENT Consumers Power Company Palisades Plant Docket 50-255 PASM UPGRADE ACTION LIST February 23, 1990 15 Pages
PASM UPGRADE ACTION LIST ITEM MODIFY UNRELIABLE COMPONENTS o Replace TE-1901, TE-1902
& TE-1903 DESCRIPTION Replace entire instrument loop with ANSI type K components.
ANSI type K thermocouple elements have increased corrosion resis-tance to sample flow and will thus have a longer life.
o Replace PI-1907, PI-1908 Replace mechanical pressure indi-
& PI-1909 cators and their diaphragms with electrical transducers and digital indicators. Mechanical Pis have frequently gone out of calibra-tion due to r~pture of the dia-phragm.
o Reduce number of Swage-lok connections WORKLOAD/TCS/MA05 Swagelok connections are suscep-tible to developing leakage, especially in presence of high system pressures.
Swagelok connections also, however, pro-vide greater ease in performing maintenance.
Need to determine locations where it would be bene-ficial to replace some of the Swagelok connections with welded components, STATUS/RESOLUTION Detailed Engineering completed. Parts are being procured.
REFERENCE SC-89-044 NRC Commitment/
PW08/15/89A 03 Detailed Engineering FC-841 completed. Parts WBS 43090 are being procurred.
Completed evaluation of those Swagelok fittings most sus-ceptible to develop-ing leakage.
This was done by review-ing w.o. history from Jan. 1986 to present.
Swagelok fittings upstream of PCS sample cooler were noted as source of fitting leakage on 15 of those total 17 total W.O. 's related to fitting leakage.
NRC Commitment/
PW08/15/89A 04 FC-868 NRC Commitment PW08/15/89A 05 UPDATED 1/23/90 TARGET ASSIGNMENT TCSaarela RJCorbett TCSaarela DATE 1990 Maint Out 1990 Maint Outage 1990 Maint Out Page 1 of 15
ITEM DESCRIPTION MODIFY UNRELIABLE COMPONENTS (cont'd)
WORKLOAD/TCS/MAOS PASM UPGRADE ACTION LIST STATUS/RESOLUTION Detailed Engineering is complete except for Technical reviews from Project Group.
Parts are on site.
REFERENCE UPDATED 1/23/90 ASSIGNMENT TARGET DATE Page 2 of 15
ITEM COMPLETE INLINE MONITORING PROJECT o Implement changes to Dissolved Oxygen (D02)
Analyzer and Gas Chromatograph (GC).
o Install longer piece of tubing between MV-1907 and MV-1925 to provide proper volume for undiluted sample.
o Complete project acceptance test T-FC-676-1.
WORKLOAD/TCS/MA05 PASM UPGRADE ACTION LIST DESCRIPTION Instruments have not performed in an acceptable manner.
System was modified due to previous erratic sample volumes.
System now provides consistent sample volumes of 3~ ml.
Sample volumes need to be 4 ml.
Test is needed to verify satis-factory completion of project.
STATUS/RESOLUTION After initial revised design, D02 analyzer continued to have problems.
Implemented design change (barrier) membrane added ) to D02 analyzer.
Design change was previously implemented for Gas Chromatograph (GC).
Both D02 analyzer and Gas Chromatograph (GC) are now function-ing properly.
Design has been revised to incorp-orage a 1/8" coiled sample loop.
New sample loop has been installed.
Punch list items have been completed and REFERENCE FC-676 w.o. 24902506 EDC-FC-676-1 (Item was added scope to inline monitoring project).
FC-676 project acceptance Test has been signed off.
UPDATED 1/23/90 ASSIGNMENT GGPalmisano GGPalmisano GGPalmisano TARGET DATE Completed Completed Completed Page 3 of 15
ITEM COMPLETE INLINE MONITORING PROJECT o Provide seal-in relays for LPSI and PCS sample valves SV-1914 and SV-1916.
Complete Chemistry Dept. Training for mod.
WORKLOAD/TCS/MAOS PASM UPGRADE ACTION LIST DESCRIPTION (cont'd)
Change corrects previous modifications.
Need to complete training for Chemistry technicians.
STATUS/RESOLUTION Implemented design change to provide seal-in for switches.
REFERENCE FC-676 EDC-FC-676-16 Training needs to be FC-676 performed after modification is completed to allow use of panel for training.
Chemistry Sampling Procedure (EI-7.1) has been revised. Training for Chemistry Technicians is complete.
UPDATED 1/23/90 ASSIGNMENT GGPalmisano JPaver/
TChartrand TARGET DATE Completed Completed Page 4 of 15
ITEM EVALUATE PASM DESIGN AND IMPLEMENT CHANGES AS NECESSARY o Compare and evaluate alternate systems and designs.
o Verify PASM samples are consistent with NSSS samples.
WORKLOAD/TCS/MAOS PASM UPGRADE ACTION LIST DESCRIPTION STATUS/RESOLUTION REFERENCE UPDATED 1/23/90 ASSIGNMENT TARGET DATE Action is needed to learn more about common industry problems and solutions.
Need to interact with other utilities to learn optimum design.
Palisades Plant is a PW08/15/89A 11 TCSaarela/
Completed Action is needed to reverify Chemistry's ability to take accurate post accident samples.
This action is based on con-servative approach to PASM evaluation (i.e. reason for verification is not due to suspect design).
member of CE Owners Group for PASM Design/
Regulatory Basis Review and also member of Sentry Owners Group.
Also have issued questions over NOMIS concerning reliability and upgrades of Post Accident Sampling Systems by other utilities.
So far have received several responses because of NOMIS questioner.
Have also held telephone discussions with other utilities concerning PASM.
Will continue to carry on dialogue with other utilities in this area.
Completed May 4, 1989.
PASM/NSSS samples are consistent with each other.
TAChartrand TChartrand Completed Page 5 of 15
PASM UPGRADE ACTION LIST UPDATED 1/23/90 ITEM DESCRIPTION EVALUATE PASM DESIGN AND IMPLEMENT (cont'd)
CHANGES AS NECESSARY o Evaluate and implement recommendations for optimizing design of PASM Components.
WORKLOAD/TCS/MA05 As a result of walkdown and review of Panel, vendor is recommending some minor design changes to-enhance operation of several components.
STATUS/RESOLUTION REFERENCE ASSIGNMENT Reviewed vendor recom-NRC Commitment/ TCSaarela mendations from Sentry PW08/15/89A 13 letter dated 5/15/89.
Couple of items on list were previously completed.
In addition, a couple of the recommendations are included as separ-ate items on this action list. Following other changes were determined to be ap-propriate to implement.
o Replace sample needles:
Needles have been replaced.
SC-89-317 P.0-2003-9504 o Replace septums:
N/A Septums have been replaced as normal maint item by Chemistry. Existing design of septums is adequate.
o Revise range of conductivity cell (CE-1902):
Evaluation for Spec Change now in process.
SC-89-375 TARGET DATE 6/31/90 Page 6 of 15
PASM UPGRADE ACTION LIST UPDATED 1/23/90.
ITEM DESCRIPTION EVALUATE PASM DESIGN AND IMPLEMENT (cont'd)
CHANGES AS NECESSARY o Evaluate concern about loss of control air (N2) to PASM panel valves CV-1912, CV-1913
& CV-1917.
o Consider replacing various PASM system globe valves with ball or plug valves.
WORKLOAD/TCS/MA05 CV-1912 and CV-1913 fail closed upon loss of control air.
Valves need to be open for sampling.
Need to determine what happens to CV-1917 on loss of air. CV-1917 is new 5-way control valve.
PASM system control air is Q-Listed.
Globe valves are susceptible to developing seat leakage. Ball or plug valves are less apt to develop seat leakage.
Nine valves should be replaced.
Also on various PASM Panel valves design for connection of stem extension and handle is inadequate.
STATUS/RESOLUTION o Revise setpoint for PCV-1902:
REFERENCE SC-89-344 Detailed Engr for Spec Change is Complete.
SC will increase N2 pres at discharge of PCV-1902 to 90 psig Part procurement has been initiated.
Air evaluation completed.
Design for control air to PASM Panel vlvs is adequate as is.
A-PAL-89-052 ASSIGNMENT TCSaarela It has been deter-mined that no ball NRC Commitment/ TCSaarela PW08/15/89A 15 or plug valve is avail ab le on the market that would fulfill design rating of PASM System.
Since a better valve is not available valves will not be replaced.
TARGET DATE Completed 1990 Maint Outage (Deferred to 1992 Refout)
Page 7 of 15
ITEM DESCRIPTION EVALUATE PASM DESIGN AND IMPLEMENT (cont'd)
CHANGES AS NECESSARY WORKLOAD/TCS/MAOS PASM UPGRADE ACTION LIST STATUS/RESOLUTION Modified designs are being considered for connection of stem REFERENCE and handle on various PASM Panel valves.
Modified connection for valve PCV-1916 has been completed.
Mod-ification of connections for MV-1907 and MV-1913 will be implemented by the 1990 Maintenance Outage.
Evaluation and imple-mentation of modified connections for other valves will be com-pleted prior to or by the 1992 Refueling Outage UPDATED 1/23/90 ASSIGNMENT TARGET DATE Page 8 of 15
PASM UPGRADE ACTION LIST UPDATED 1/23/90 TARGET ITEM DESCRIPTION UPGRADE TIMELINESS OF MAINTENANCE o Provide higher priorities for Work Orders o Upgrade spare parts for PASM system WORKLOAD/TCS/MA05 Assign higher priorities for W.O.s of PASM and associated sampling components.
Include those W.O.s on Ops Concerns List.
When assigning priorities Ops needs to also identify if PASM system is inoperable or not due to maintenance.
Review spare parts program for PASM and upgrade as required.
STATUS/RESOLUTION W.O.s related to inoperability of PASM are assigned as Priority 1 and put on the Ops Concerns List.
Other W.O.s in PASM system are assigned a lower priority.
This has been in effect since 5/1/89.
REFERENCE ASSIGNMENT DWKaupa Energy Supply NRC Commitment TCSaarela Services Request PW08/15/89A 17 (ESSR) was initiated on 5/19/89 to effect upgrade of PASM system spare parts program.
Due to 1990 budget review, the compre-hensive evaluation of the PASM spare parts program has been deferred to 1991.
Review of PASM spare parts, however, is ongoing and spares for individual com-ponents will be up-graded as the need is identified.
DATE Completed 8/1/90 (Deferred to 8/1/91)
Page 9 of 15
PASM UPGRADE ACTION LIST UPDATED 1/23/90 ITEM DESCRIPTION UPGRADE TIMELINESS OF MAINTENANCE (cont'd) o Upgrade PM program for PASM Maint.
WORia..OAD/TCS/MA05 Currently 4 PMs exist for either calibration of PASM instruments or maintenance of valves, tubing and gaskets.
Vendor has informally proposed a service contract for periodic inspection and maintenance of the panel.
Use of vendor personnel to perform PM type inspections as well as completing maintenance appears to be beneficial.
STATUS/RESOLUTION Vendor provided letter on 5/8/89 with scope of activities which could be included in service contract.
REFERENCE ASSIGNMENT NRC Commitment/ TCSaarela PW08/15/89A 18 Contract and Purchase Contract No.
Order have been issued 39-034-3280 for Sentry Equip Corp Services.
PPAC has been approved for quarterly PM by the vendor.
Vendor has completed his first PM of the PASM Panel.
PMs will generally include exercise (and review) of system, calibration of inline monitoring type eqpt, preventative maintenance of various components and verification/testing for proper operations of other components.
P.O.# CPll-7896 PCS058 TARGET DATE Completed Page 10 of 15
_ ___J
PASM UPGRADE ACTION LIST UPDATED 1/23/90 ITEM DESCRIPTION EVALUATE AND UPGRADE ADMINISTRATIVE RESOURCES ASSOCIATED WITH SYSTEM o Revise Chemistry Sampling Procedures o Evaluate and upgrade drawings o Upgrade Equipment Data Base and Q-List WORKLOAD/TCS/MAOS Chemistry Procedures need to be updated and technicians trained regarding procedure changes.
New P&ID M219 Sh 2A has discrep-ancies.
Various electrical drawings in vendor file are awkward.
During recent walkdown of a PASM W.O. one electrical drawing was found to be incorrect.
Drawings should be reviewed and upgraded.
Not all PASM components are in EDB, some components are not appropriately identified (eg V-18) and others do not have Q-List Interpretations.
EDB and Q-List need to be updated.
STATUS/RESOLUTION REFERENCE ASSIGNMENT TARGET DATE Procedure revision was completed 5/19/89.
Tom Chartrand Completed Procedures will also be revised upon completion of inline monitoring project.
Technicians will be trained on inline monitoring mod at that time.
See action under "Complete Inline Monitoring Project" for fo llowup.
Procedure revision for M219 Sh 2A was initi-ated on 5/18/89.
TCSaarela JAHanks Walkdown has been NRC Commitment completed by PW08/15/89A-20 Configuration Control Group for PASM Panel electrical drwgs.
Drawing updates are completed.
NRC Commitment/ TCSaarela PW08/15/89A 21 Completed 9/31/90 l'aJ?e 11 of 15
PASM UPGRADE ACTION LIST ITEM DESCRIPTION EVALUATE AND UPGRADE ADMINISTRATIVE (Cont'd)
RESOURCES ASSOCIATED WITH SYSTEM WORKLOAD/TCS/MAOS Numerous system designations are used for PASM components (eg PCS, ESS, MGS, WGS).
To help define PASM system boundaries, it is highly recommended that a new system designation (eg PAS) be provided to all PASM components.
STATUS/RESOLUTION Project assigned to Configuration Control Group.
Action is planned for 1990.
REFERENCE UPDATED 1/23/90 ASSIGNMENT TARGET DATE Page 12 of 15
ITEM IMPLEMENT MISCELLANEOUS IMPROVEMENTS TO PASM SYSTEM o Change Sample Cask Wheels o Delete PI-1914 o Change tubing configuration to PI-1900 WORKLOAD/TCS/MAOS PASM UPGRADE ACTION LIST UPDATED 1/23/90 TARGET DESCRIPTION Metal wheels of sample cask marks up aux bldg floor when transporting samples to hot or grey labs.
Need to evaluate alternate design (eg rubber wheels).
Need to initiate SC to remove PI and replace with plug. PI'S inside of panel and not accessible during normal operation and or post acci-dent conditions. PI is used only for maintenance.
I&C would prefer to use temporary test gauge when performing maintenance.
Reduce length of tubing line to PI-1900 to reduce vibration on fittings.
Add tee in line to PI-1900 to provide test connection for system hydro (RC-78).
Currently test connection for system hydro is provided by removing PI-1900.
Changes would reduce wear on Swagelok fittings associated with PI-1900.
STATUS/RESOLUTION Wheels on sample cask have been replaced with wheels that have polyurethane type tread.
REFERENCE SC-89-316 NRC Commitment/
PW08/15/89A 22 ASSIGNMENT TCSaarela Spec Change No. Assigned.
NRC Commitment/ TCSaarela PW08/15/89A 23 Modification to be completed as part of project for re-ducing number of Swagelok connections in PASM system.
SC-89-376 FC-868 NRC Commitment/
PW08/15/89A 24 Detailed engr is complete except for Tech Review from Project Group.
Parts are being procurred.
TCSaarela DATE Complete 1990 Maint Outage 1990 Ma int Outage Page 13 of 15
ITEM PASM MAINTENANCE ITEMS o PI-1903 o PCV-1916 o MV-1932 o EC-103-1 WORKLOAD/TCS/MAOS PASM UPGRADE ACTION LIST DESCRIPTION PI-1903 not responding properly.
PT-1904 needs to be replaced and calibrated.
PT is stock item, however current balance on hand is zero.
Valve is unable to throttle sample flow to value required by Chem Proc.
Need to install new PCV.
Handle rotates more than 90° (ie, handle appears to be slipping on shaft)
Complete PM for inspection and maintenance of septums and filters.
Also check and tighten any loose valve handles.
STATUS/RESOLUTION New transmitter was installed on 6/22/89.
New valve was installed on 6/21/89.
Work Completed on 9/7/89 Chemistry Technician completed PM type activity to replace septums and 0-rings on undiluted needle assembly.
Other panel septums appear to be o.k.
Chemistry has also tightened all loose valve handles.
Filters are not plug-ging and have been determined to be acceptable.
REFERENCE WO 24902329 PO 1009-3258 WO 24903286 WO 24902918 UPDATED 1/23/90 ASSIGNMENT TCSaarela
- TCSaarela TCSaarela TCSaarela TARGET DATE Completed Completed Completed Completed Page 14 of 15
ITEM PASM MAINTENANCE ITEMS o EC-168 WORKLOAD/TCS/MAOS PASM UPGRADE ACTION LIST DESCRIPTION (cont'd)
Replace relay module in annunciator panel for high sample temperature alarm.
Needs a replacement relay module.
STATUS/RESOLUTION Replacement relay was installed on 6/22/89.
REFERENCE WO 24802876 UPDATED 1/23/90 ASSIGNMENT TCSaarela TARGET DATE Completed Page 15 of 15
< *