E-M:/ Fwd: Cook Reactor Shutdown due to high temperature

[Kay Cumbow <kcumbow@greatlakes.net>]

 "Hot standby" (which occurs in the phrase describing
reactor status, before Event Text,) appears to take on a double
meaning here. Global warming seems not to be so very good for nuclear
power plants. 

-Kay Cumbow, Director, Citizens for Alternatives to Chemical
Contamination


> From: "Thomas Keegan"
> <mkeeganj@comcast.net>
>
>
> Subject: Cook Reactor Shutdown
> Date: Mon, 31 Jul 2006 10:05:52 -0500
>
>
> Power Reactor Event Number: 42739
> Facility: COOK
> Region: 3 State: MI
> Unit: [1] [ ] [ ]
> RX Type: [1] W-4-LP,[2] W-4-LP
> NRC Notified By: BRAD LEWIS
> HQ OPS Officer: JOHN KNOKE Notification Date: 07/30/2006
> Notification Time: 11:15 [ET]
> Event Date: 07/30/2006
> Event Time: 07:30 [EDT]
> Last Update Date: 07/30/2006 
> Emergency Class: NON EMERGENCY
> 10 CFR Section: 
> 50.72(b)(2)(i) - PLANT S/D REQD BY TS
> Person (Organization): 
> ANNE MARIE STONE (R3)
>
> Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current
> RX Mode
> 1 M/R Y 100 Power Operation 0 Hot Standby
>
> Event Text 
> TECHNICAL SPECIFICATION SHUTDOWN FOR HIGH CONTAINMENT AIR TEMPERATURE
>
> "On July 30, 2006, at 0730, a plant shutdown was initiated in
> accordance with Technical Specification (TS) Action 3.6.5.B.1. This
> action requires that the unit be placed in Mode 3 within six hours if
> containment air temperature is not restored to within limits during the
> previous eight hours. 
>
> "On July 29, 2006, at 2026 TS Action 3.6.5.A was entered due to
> containment lower compartment average air temperature exceeding the TS
> Limiting Condition for Operation 3.6.5.B limit of 120 degrees Fahrenheit.
> Efforts to reduce the containment temperature during the eight hour
> completion time of Action 3.6.5.A were unsuccessful. 
>
> "In accordance with normal plant operating procedures, the unit
> shutdown was completed by initiating a manual reactor trip from 16.5%
> Reactor Power following a controlled plant shutdown on July 20, 2006, at
> 1014. All safety systems and plant equipment used in the shutdown
> functioned as designed." 
>
> All rods inserted fully without incident. No PORV/safety valves lifted.
> Decay heat is being removed with AFW. Unit 2 containment air temperature
> is 117 degrees Fahrenheit. 
>
> The licensee notified the NRC Resident Inspector.