ML100750424

Email W/Internal Newsletter

ML100750424
Person / Time
Site:	Crystal River
Issue date:	10/07/2009
From:	Thomas Morrissey Progress Energy Florida
To:	Marvin Sykes NRC/RGN-II/DRP/RPB3
References
FOIA/PA-2010-0010
Download: ML100750424 (3)

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Sykes, Marvin From: Sent: To:

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Attachments:

Morrissey, Thomas Wednesday, October 07, 2009 7:37 AM Sykes, Marvin FW: Emailing:

10.5.09.pdf 10.5.09.pdf Marvin, Attached internal communication regarding concrete crack etc. Please limit distribution of attached file Thanks Tom From: Morrissey, Thomas [1]

Sent: Wednesday, October 07, 2009 7:35 AM To: Morrissey, Thomas

Subject:

Emailing:

10.5.09.pdf 1

October 5, 2009 Site Level HU Performance Events Goal: o Actual: o OSHA Recordable Events Goal: o Actual: 1 Radiation Goal:<=297 -rem Actual: 25.343rem n Production Schedule :<= 85days Acttual: Five Shifts _Bein~*asof 13oo Crystal River 3 refueling outage newsletter Outage Update: A Message from the SOM -John D er While filling the fuel transfer canal last night, a leak of approximately 0.5 gpm was discovered on one of the four nuclear instrumentation (NI) covers and the fill activity was suspended.

After review and discussion, we followed the operational decision making principles and decided to drain back down the refueling canal to repair the leaking cover.While it is undesirable to return the Reactor Coolant System (RCS) level to reduced inventory conditions at the reactor vessel flange, it prevents the potential of experiencing significant RCS leakage while irra-diated fuel movement is in progress.

Our nightshift exhibited great leadership and commitment to nu-clear safety by taking the necessary steps to secure the leak. Remember, safety is our top priority!All four of the NI cover gaskets were replaced to- The first gasket is replaced on one of day at 12:30 p.m. The new gaskets will take 24 the four Nuclear Instrumentation (NI)hours to cure, which will allow us to begin refilling covers.the transfer canal tomorrow at 12:30 p.m. Critical path remains through core offload and we are now 5 shifts behind schedule.

Don't get distracted by this setback and stay focused on completing your work safely and error-free.

Continue to work the schedule and keep looking ahead.From a nuclear safety perspective, we continue to be in the most risk significant portion of the out-age. The plant risk will remain YELLOW until the fuel transfer canal has been flooded up, which is scheduled to be complete by 2:00 p.m. tomorrow afternoon.

Please use caution, honor protected train signs and be aware of changing plant conditions throughout the next 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.Reactor Containment Concrete Update f A message from Jon Franke, Site Vice President In Saturday's Outage Times, we discussed an indication we found showing a crack in the Reactor Building containment concrete.As we have continued the hydro-demolition, we are getting a better understanding of the nature of the crack. The degradation ap-pears to be limited to the very outer area of the containment where the structural tendons are set.Cracks in reactor containments are not uncom-mon in the nuclear industry.

In general, our containment strength is derived by the force of those tendons inward holding the concrete backing to the liner plcte.Initial review of the condition indicates good concrete for the area between the tendons and the liner plate. We are currently working with Sargent & Lundy and MPR associates to determine what this defect will have on the strength of the building.

They have advanced computer models of the structure and can determine what affect, if any, these indica-tions have on the ability to both transfer the steam generators over the containment wall and to contain the effects of design basis events when at power.We believe these indications existed prior to our last Integrated Leak Test which success-fully demonstrated the containment's ability to withstand design basis pressures.

As always, we will place nuclear safety first and fully evaluate these indications before using the wall for a structural member of the steam generator transfer system.Additionally, before re-start the full impact of the defect will be known on future plant operation.

Out & Ab out Matt Hinman, performs a test fit of the nozzle dams in one of the two new Once Through Steam Generators (OTSG).CR3 Mechanical Instructor Kirk Correll takes pictures of a secon-dary services closed cycle pump at the 95 foot elevation of the Turbine Building on Monday. Correll will incorporate the photos into future pump training courses.Off-site Parking Improvements In an effort to reduce the amount of dust and debris at the off->site parking lot, water trucks will wet down the area daily between 2 a.m.- 4 a.m. and 1:30 p.m. -3:30 p.m.i S~afety Corner A new core donut is getting ready to be installed into the turbine generator.

A DZ Atlantic crew works on the heat exchanger piping.