ML18019B187: Difference between revisions

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{{Adams
#REDIRECT [[TSTF-17-18, Transmittal of TSTF-566, Revision 0, Revise Actions for Inoperable RHR Shutdown Cooling Subsystems.]]
| number = ML18019B187
| issue date = 01/19/2018
| title = Transmittal of TSTF-566, Revision 0, Revise Actions for Inoperable RHR Shutdown Cooling Subsystems.
| author name = Gullott D M, Miksa J P, Sparkman W, Vaughan J L, Williams L L
| author affiliation = Technical Specifications Task Force
| addressee name =
| addressee affiliation = NRC/Document Control Desk, NRC/NRR
| docket = PROJ0753
| license number =
| contact person =
| case reference number = TSTF-17-18
| document report number = BWROG-134, Rev 0, TSTF-566, Rev 0
| document type = Letter
| page count = 43
| project =
| stage = Request
}}
 
=Text=
{{#Wiki_filter:TECHNICAL SPECIFICATIONS TASK FORCE A JOINT OWNERS GROUP ACTIVIT Y TSTF
 
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B. Required Action and associated Completion Time of Condition A not met.
B.1 Initiate action to restore RHR shutdown cooling subsystem(s) to OPERABLE status.
 
Immediately C
C
 
C
 
sufficient
 
, or an inoperable but functional RHR shutdown cooling subsystem
 
B.1 If the required alternate method(s) of decay heat removal cannot be verified within one hour, immediate action must be taken to restore the inoperable RHR shutdown cooling subsystem(s) to operable status. The Required Action will restore redundant decay heat removal paths. The immediate Completion Time reflects the importance of maintaining the availability of two paths for heat removal.
C C
 
The required cooling capacity of the alternate method should be sufficient to maintain or reduce temperature. Decay heat removal by ambient losses can be considered as, or contributing to, the alternate method capability.
Alternate methods that can be used include (but are not limited to) the Spent Fuel Pool Cooling System, the Reactor Water Cleanup System, or an inoperable but functional RHR shutdown cooling subsystem.
 
The required cooling capacity of the alternate method should be sufficient to maintain or reduce temperature. Decay heat removal by ambient losses can be considered as, or contributing to, the alternate method capability. Alternate methods that can be used include (but are not limited to) the Spent Fuel Pool Cooling System, the Reactor Water Cleanup System, or an inoperable but functional RHR shutdown cooling subsystem.
 
B. Required Action and associated Completion Time of Condition A not met.
B.1 Initiate action to restore RHR shutdown cooling subsystem(s) to OPERABLE status.
Immediately C
 
C
 
C
 
sufficient ,
,  , or an inoperable but functional RHR shutdown cooling subsystem
 
B.1 If the required alternate method(s) of decay heat removal cannot be verified within one hour, immediate action must be taken to restore the inoperable RHR shutdown cooling subsystem(s) to operable status. The Required Action will restore redundant decay heat removal paths. The immediate Completion Time reflects the importance of maintaining the availability of two paths for heat removal.
 
C C
 
The required cooling capacity of the alternate method should be sufficient to maintain or reduce temperature. Decay heat removal by ambient losses can be considered as, or contributing to, the alternate method capability.
Alternate methods that can be used include (but are not limited to) the Spent Fuel Pool Cooling System, the Reactor Water Cleanup System, or an inoperable but functional RHR shutdown cooling subsystem. 
 
The required cooling capacity of the alternate method should be sufficient to maintain or reduce temperature. Decay heat removal by ambient losses can be considered as, or contributing to, the alternate method capability.
Alternate methods that can be used include (but are not limited to) the Spent Fuel Pool Cooling System, the Reactor Water Cleanup System, or an inoperable but functional RHR shutdown cooling subsystem.}}

Latest revision as of 10:46, 7 November 2018

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