ML052030135
| ML052030135 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 05/26/2004 |
| From: | Nuclear Management Co |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| FOIA/PA-2004-0282 | |
| Download: ML052030135 (2) | |
Text
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N CommJitted to Moceaar Ej "I=ec~I Point Beach Refueling Outage Edition DAY D53 I---1 May 26, 2004 CONTACT INFORMATION Control Room Emergency - x2911 EMT Pager 6442 Work Control Center - x6703 OCC - x 7190 - Option I Lessons Learned - x7190 - Option 2 Plant Status - x7190 - Option 3 Accomplishments
- SIG Primary Manway Installation Cavity Seal Ring Removal Exit Reduced Inventory Installed Thimbles
- Removed Reactor Head Stud Hole Covers
- Installed Reactor Head Bolts
- Aligned 1 PI B Reactor Coolant Pump Schedule Focus Areas/Priorities Reactor Head Penetration #26 Relief Request Issues Seal Table Restoration
- Tension Reactor Head Studs Enter Mode 5
- Install Pressurizer Manway Couple 1 P1 B Reactor Coolant Pump Install Conoseals Personnel Last 24 Hours Outage to Safety Last_24_Hour Date zc Recordable - 0 Recordable - I1 Disabling -0 Disabling -0
- OSHA Recordable - Back strain.
Lst 24 Hours Outage to Date ALARA 'w '
1.987 79.189 R Dose as of the end of Day 51
\\431 Intormabon tn ills record was deIleted in accordance Wth the Freedom of normaffon AcL exempno-st f
7
_lUR1EY m..'
,.ECELLERCE onficir nopu - 11090
.1,..
May 26, 2004 OUTAGE GOALS NUCLEAR SAFETY GOAL ACTUAL PERFORMANCE____
Unplanned orangelred paths None None Reactor trips (either unit)
None I
Safeguards actuation (either unit)
None None Loss of shutdown cooling None None Loss of Rx vessel level control None None INDUSTRIAL SAFETY PERFORMANCE Lost time accidents None None Personnel Injuries (OSHA recordable)
None I
RADIOLOGICAL PERFORMANCE Radiation exposure (Excludes additional dose from any head or BMI repair s 92 R 79.189 R contingencies)
Personnel contaminations 5 18 WI 10 Radiological events (defined as unplanned uptake w/assigned dose >10 mrem or s1 event 1
dose event based on ED alarms Radmaterlal event (defined as any rad 1 event 0
material outside RCAk 100 CPM)
___vet_
HUMAN PERFORMANCE GOAL ACTUAL Security Violations s 12 loggable events 3
Station hurnan performance clod(
None 4
resets Rework 1%
On Goal SCHEDULE PERFORMANCE Outage Duration (excludes extensions due to s 30 days Off Goal extended head or BMI Inspections)_
Mod Implementation 100% of Rev 0 On Goal
>85% schedule Schedule Compliance compliance with Off Goal outage milestone Emergent work (during s
2% Wte additions On Goal Implementation) s 5% Emergent ScpeComplete Z 95% of On Goal Rev 0 scope 100% of Scheduled Operator Burdens Operator Burdens On Goal cornmpte Post Outage availability 2150 days of Available at continuous operation a later date BUDGET PERFORMANCE Within -2% to Oh of Seriously I outage budget Challenged Human Performance Job observations are the trendy' thing to do. So what happens to all of the information collected in observations? We are able to collect the data and trend it to see where areas for improvement may lie. This done using the PACE program. The PACE database provides us with focus areas for improvement that may allow us to prevent a more serious problem in the future. These trends also show us what we are doing well.
Operating Experience OE12440 - Reactor Vessel Conoseal Leakage And Assembly Issues On March 15, 2001, in response to indications of elevated RCS leak rate, technicians entered the Containment Building and noted crystallized boric acid accumulation around the perimeter of the lower Conoseal clamp of Conoseal Assembly Number 4 on the Reactor Vessel head. Engineering evaluated the leakage in accordance with guidance provided by EPRI and determined that the leak rate was minor, established monitoring and acceptance criteria, and judged continued operation until an impending refueling outage scheduled to start on April 27. Upon disassembly of the mating surfaces and gasket during the outage it was noted that the gasket had a dent mark and an apparent crushed burr on the outer edge. There were no apparent deformations on either the male or female flange surfaces of the assembly, and it was determined the leakage was likely due to the introduction of metal particulate/grit between the mating surfaces during reassemble the previous refueling outage.
Lessons Learned: The root cause was determined to be Inadequate procedural guidance In both oversight and verification of the assembly process. Also, the procedure did not contain adequate guidance for the torque sequence for the final assembly.
Safety Snippet Just a reminder to be told, balance that loadl OE1 0902 March 2000, Seabrook - Electricians were offloading battery cells from a metal pallet on a forklift The offload sequence went from inside, closest to the forklift, to the outside, furthest from it. The result -
instability in the load and the pallet tipped under the weight of the batteries. The cells fractured spilling 19 gallons of sulfuric acid/water electrolyte in the switchgear room. ThisOEisnotjustforbafferyremoval. Balanceall yourloads.