ML061520410
| ML061520410 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 06/01/2006 |
| From: | Tamplin D Southern Nuclear Operating Co |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML061520404 | List: |
| References | |
| Download: ML061520410 (31) | |
Text
BOP/FP/HVAC BOP/FP/HVAC System Health Reports System Health Reports System Health Reports Document what System Health Reports Document what is currently significant and what will be is currently significant and what will be significantly challenging in the next 5 to significantly challenging in the next 5 to 10 years.
10 years.
Doug Tamplin Doug Tamplin 44th th quarter 2005 quarter 2005
- ASSISTANCE: Request help when moving ASSISTANCE: Request help when moving heavy loads.
heavy loads.
U1 04/17/2006 MANUAL TRIP AFTER MFRV #3 WOULD NOT CONTROL.
U2 02/01/2006 EHC LEAK REPAIR.
U1 10/17/2005 MANUAL TRIP AFTER MFRV # 2 SPURIOUSLY CLOSED U2 05/23/2005 EXTRACTION STEAM PIPING; BELLOWS RUPTURE TO 3C FWH U1 01/11/2005 UNPLANNED SHUTDOWN GENERATOR PT CONNECTION U2 11/22/2004 POWER ASCENSION STOPPED 65% DUE TO MFP TURB 2A U2 07/30/2004 HEATER DRAIN PUMPS; PLANNED DERATE FOR HDP 2A U1 03/26/2004 OUTAGE TO REPAIR GEN VOLT CONTL INVERTOR.
U2 01/31/2004 OUTAGW TO REPAIR H2 LEAK DUE TO FAULTY
1404 TPCCW 1404 TPCCW WHITE WHITE GREEN GREEN
- Resolve the microbiological infestation for Resolve the microbiological infestation for unit 1 unit 1
1402 River Water 1402 River Water WHITE WHITE
- Complete packing rework on knife gate valves.
Complete packing rework on knife gate valves.
- Refurbished traveling screen # 2 & 3 one per Refurbished traveling screen # 2 & 3 one per year per current plan.
year per current plan.
- Pin hole leaks discovered in the river intake to Pin hole leaks discovered in the river intake to blowdown blowdown sump 12 inch piping.
sump 12 inch piping.
- RER A054393001 Corporate Engineering to RER A054393001 Corporate Engineering to develop a contingency plan to limit plant develop a contingency plan to limit plant susceptibility to the buried river water make susceptibility to the buried river water make--up up lines that run from the river intake to the NSCW lines that run from the river intake to the NSCW towers, the Natural Draft Cooling Towers, and towers, the Natural Draft Cooling Towers, and cooling tower cooling tower blowdown blowdown sump.
sump.
1305 Condensate / Feedwater 1305 Condensate / Feedwater RED RED WHITE WHITE
- Unit 2 2B condensate pump motor trip on Unit 2 2B condensate pump motor trip on 12/14/05 12/14/05
- MFIV leaks and alarms MFIV leaks and alarms
- Problematic BFIV air pump.
Problematic BFIV air pump.
SG #4 level swings of 4%
1304 Feedwater Heater and MSR Drain 1304 Feedwater Heater and MSR Drain WHITE WHITE
- 1B HDP developed a leak at the stuffing box 1B HDP developed a leak at the stuffing box extension extension
- 6A vent line to condenser has a leak at the 90 6A vent line to condenser has a leak at the 90 degree elbow due flow accelerate corrosion.
degree elbow due flow accelerate corrosion.
- The U2 6A/6B Feedwater heater shells have The U2 6A/6B Feedwater heater shells have been experiencing thinning at the extraction been experiencing thinning at the extraction steam inlet nozzle.
steam inlet nozzle.
- The RHDT valves have a history of sticking due The RHDT valves have a history of sticking due to the build up of magnetite between the plug to the build up of magnetite between the plug and the cage.
and the cage.
1615 1615 EHC control system EHC control system WHITE WHITE RED RED
- Electrostatic filtration equipment has been Electrostatic filtration equipment has been out of service since November 2004 due out of service since November 2004 due to a leak and was removed and stored on to a leak and was removed and stored on the mezzanine in the maintenance shop.
the mezzanine in the maintenance shop.
1301 Main Steam 1301 Main Steam WHITE WHITE
- Main Steam Safety Valves seats are Main Steam Safety Valves seats are approaching end of life.
approaching end of life.
improve oil quality.
1303 Extraction Steam 1303 Extraction Steam WHITE WHITE
- White due to cycling of extraction steam White due to cycling of extraction steam valves cycling. MDC to replace valves cycling. MDC to replace instrumentation and GE is reviewing instrumentation and GE is reviewing turbine for explanation of excessive turbine for explanation of excessive moisture.
moisture.
- Unit 1 bellows require replacement.
Unit 1 bellows require replacement.
1317 Steam Seals 1317 Steam Seals WHITE WHITE
- Steam steal pressure control solution is Steam steal pressure control solution is being investigated.
being investigated.
- Problems swapping steam packing Problems swapping steam packing exhauster cause is still unknown.
exhauster cause is still unknown.
1326 Stator Cooling 1326 Stator Cooling WHITE WHITE
- Main Generator Rewind is projected for Main Generator Rewind is projected for 2010 and is subject to change based upon 2010 and is subject to change based upon the number of stator bar leaks found.
the number of stator bar leaks found.
- Resin has to be replaced mid Resin has to be replaced mid--cycle cycle challenging unit operation.
challenging unit operation.
1414 Condensate 1414 Condensate Demin Demin WHITE WHITE
condensate pumps at low power.
Operations has action to revise Operations has action to revise procedures.
procedures.
to a digital system.
1306 1306 Feedpump Feedpump Turbine Drive Turbine Drive GREEN GREEN
install a new hand switch.
- The The feedpump feedpump turbines have a long turbines have a long history of oil leakage from the outboard history of oil leakage from the outboard bearing housing. RER to corporate to bearing housing. RER to corporate to resolve.
resolve.
1301 Main Turbine 1301 Main Turbine WHITE WHITE
- Replacement of High Pressure Turbine:
Replacement of High Pressure Turbine:
end, awaiting recommendation from GE.
recommended no action at this time.
1302 Auxiliary Feedwater 1302 Auxiliary Feedwater GREEN GREEN
- Failures of the starter auxiliary contacts, which has Failures of the starter auxiliary contacts, which has occurred on motor operated valves occurred on motor operated valves
- The 1 pipe that drains condensate from the low points The 1 pipe that drains condensate from the low points on the TDAFW turbines steam supply lines to the main on the TDAFW turbines steam supply lines to the main condenser experiences periodic through condenser experiences periodic through--wall leaks.
wall leaks.
leakage.
- TPCW is the seal water source on unit 2 TPCW is the seal water source on unit 2
1401 Circulating Water 1401 Circulating Water WHITE WHITE
- Need to obtain spare Circ water pump motor.
Need to obtain spare Circ water pump motor.
- Discharge expansion joints at all circulating water pumps Discharge expansion joints at all circulating water pumps have degraded and require replacement during next have degraded and require replacement during next outage.
outage.
- Remove the old Cooling Tower Lighting system and Remove the old Cooling Tower Lighting system and upgrade per DCP. A rescue plan is required for this upgrade per DCP. A rescue plan is required for this work.
work.
- Corporate RER 1060182901 was generated to establish a Corporate RER 1060182901 was generated to establish a long range plan to assess the current performance of long range plan to assess the current performance of both cooling towers and provide recommendations to both cooling towers and provide recommendations to improve performance.
improve performance.
to determine if valves need to be reoriented.
1813 Fire Detection System 1813 Fire Detection System YELLOW YELLOW
- The fire detection system remains yellow due to The fire detection system remains yellow due to continued nuisance alarms on the fire alarm continued nuisance alarms on the fire alarm system. This condition has resulted in reduced system. This condition has resulted in reduced operator sensitivity to actual alarms.
operator sensitivity to actual alarms.
- Equipment obsolescence remains an issue.
Equipment obsolescence remains an issue.
- Admin Support Building Admin Support Building unsat unsat..
- North Main Steam Valve Room smoke detectors.
North Main Steam Valve Room smoke detectors.
2301 Fire Protection System 2301 Fire Protection System YELLOW YELLOW
- Underground leaks, model A Underground leaks, model A--4 4 Multimatic Multimatic valve obsolescence, north and south fire valve obsolescence, north and south fire water tanks level inconsistency.
water tanks level inconsistency.
- #13 on the Major Issues List.
- 13 on the Major Issues List.
- Two jockey pumps are being run.
Two jockey pumps are being run.
VAM041)
VAM041)
1501 Contain Building Cooling 1501 Contain Building Cooling WHITE WHITE
- Containment Building Air Cooling System Containment Building Air Cooling System is currently classified as WHITE. The is currently classified as WHITE. The system will not be returned to GREEN until system will not be returned to GREEN until all degraded cooling coils are replaced.
all degraded cooling coils are replaced.
coolers.
1535 Fume Hood Exhaust Fan 1535 Fume Hood Exhaust Fan WHITE WHITE
- The system continues to meet the white The system continues to meet the white classification due to vibration issues noted classification due to vibration issues noted since the 4th Quarter of 2002 associated since the 4th Quarter of 2002 associated with A with A--1535 1535--N7 N7--001 001--000. Recently 000. Recently obtained cost estimate preparing DCR to obtained cost estimate preparing DCR to replace fan.
replace fan.
1551 Aux Building Supply 1551 Aux Building Supply WHITE WHITE
- The Auxiliary Building Supply and Normal The Auxiliary Building Supply and Normal HVAC for both units are white due to the HVAC for both units are white due to the material condition. The classification is material condition. The classification is largely based on the need to perform a largely based on the need to perform a complete overhaul on the U1 #2 and U2 #
complete overhaul on the U1 #2 and U2 #
2 supply units.
2 supply units.
1591 Normal Chilled Water 1591 Normal Chilled Water YELLOW YELLOW
- Due to repeat failures of obsolete Due to repeat failures of obsolete Telemecanique Telemecanique Class J control relays in Class J control relays in the Normal Chiller control panels. RER the Normal Chiller control panels. RER received for a cost estimate to replace the received for a cost estimate to replace the control system preparing a DCR control system preparing a DCR
- Material condition.
Material condition.
1553 Aux Building Normal Exhaust.
1553 Aux Building Normal Exhaust.
GREEN GREEN
require replacement in the next 5 years.
This is intensive manpower and large This is intensive manpower and large quantity of charcoal to purchase (~30,000 quantity of charcoal to purchase (~30,000 lbs/bed), the Unit 2 carbon beds are likely lbs/bed), the Unit 2 carbon beds are likely to be the biggest system health issue in to be the biggest system health issue in the next 5 years.
the next 5 years.
1531 Control Room HVAC 1531 Control Room HVAC GREEN GREEN
- Initial tracer gas testing to measure Initial tracer gas testing to measure unfiltered in unfiltered in--leakage for the Main Control leakage for the Main Control Room was completed in December 2003.
Room was completed in December 2003.
Corporate Licensing currently has the Corporate Licensing currently has the action to update UFSAR and Tech action to update UFSAR and Tech Specifications. Corporate is waiting for Specifications. Corporate is waiting for NRC guidance.
NRC guidance.
1532 Control Building ESF HVAC 1532 Control Building ESF HVAC 1539 Control Building Cable 1539 Control Building Cable Spreading Room HVAC Spreading Room HVAC GREEN GREEN
- The material condition is average.
The material condition is average.
Engineering continues monitor Engineering continues monitor degradation of aging air handler cooling degradation of aging air handler cooling units.
units.
1561 Piping Penetration System 1561 Piping Penetration System White White GREEN GREEN
- Unit 1 white due to relay failure and TS Unit 1 white due to relay failure and TS entry. This has been corrected and should entry. This has been corrected and should return to green next quarter.
return to green next quarter.
- Complete flow balance activities for Unit 1.
Complete flow balance activities for Unit 1.
The current schedule is to complete The current schedule is to complete activities by 6/1/06.
activities by 6/1/06.
1531 Control Room HVAC 1531 Control Room HVAC GREEN GREEN
- Initial tracer gas testing to measure Initial tracer gas testing to measure unfiltered in unfiltered in--leakage for the Main Control leakage for the Main Control Room was completed in December 2003.
Room was completed in December 2003.
Corporate Licensing currently has the Corporate Licensing currently has the action to update UFSAR and Tech action to update UFSAR and Tech Specifications. Corporate is waiting for Specifications. Corporate is waiting for NRC guidance.
NRC guidance.
1532 Control Building ESF HVAC 1532 Control Building ESF HVAC 1539 Control Building Cable 1539 Control Building Cable Spreading Room HVAC Spreading Room HVAC GREEN GREEN
- The material condition is average.
The material condition is average.
Engineering continues monitor Engineering continues monitor degradation of aging air handler cooling degradation of aging air handler cooling units.
units.
1561 Piping Penetration System 1561 Piping Penetration System White White GREEN GREEN
- Unit 1 white due to relay failure and TS Unit 1 white due to relay failure and TS entry. This has been corrected and should entry. This has been corrected and should return to green next quarter.
return to green next quarter.
- Complete flow balance activities for Unit 1.
Complete flow balance activities for Unit 1.
The current schedule is to complete The current schedule is to complete activities by 6/1/06.
activities by 6/1/06.