Mark,

Beaver Valley does not have Tech Spec BEACON. Additionally, when we converted to Improved Standard Tech Specs we moved the Incore detector requirements, 75 % and 2 per quadrant, to the Licensing Requirements Manual from the Tech Specs.

Anthony (A.R.) Burger
Supervisor, Reactor Engineering
FENOC - Beaver Valley Power Station
Phone: (724) 682-4108
Cell: (724) 601-3224
FAX: (724) 682-4250
Email: aburger@firstenergycorp.com



From:        "Mayer, Mark" <MLM3@pge.com>
To:        "'respvr@retaqs.com'" <respvr@retaqs.com>
Date:        10/19/2011 12:42 PM
Subject:        [Respvr] BEACON Topical Question
Sent by:        respvr@retaqs.com

---

Diablo Canyon has a request for all BEACON users -
 
A recent review of our BEACON topical indicates a potential discrepancy between the BEACON topical and our Technical Specifications.  The issue stems from the number of MIDS thimbles required to be used during a flux map.  The BEACON topical in places states that the required number of thimbles is 75% with at least four thimbles per quadrant.  Our Tech Specs only require two per quadrant.  The draft COLR in the topical (provided to the NRC in an RAI on the topical) and the NRC SER on BEACON acknowledges the use of four per quadrant.
 
We requested approval to use BEACON PDMS through a license change that did not identify any deviations from the BEACON topical.  
 
At this time, we have a conflicted licensing basis and are looking for input from other plants which may have a similar quandary.  

• How many thimbles do you require? (% and #/quadrant?)
• Do you have a similar issue?  
• Did you identify this as a difference between the topical and your application of BEACON?
• Do you have any other insights to share with respect to the use of BEACON?
   
  Thanks in advance,
   
  Mark Mayer
  Diablo Canyon Power Plant
  805-545-4674
   _______________________________________________
  Respvr mailing list
  Respvr@retaqs.com
  http://www.keffective.com/mailman/listinfo/respvr
  
  

----------------------------------------- The information contained in this message is intended only for the personal and confidential use of the recipient(s) named above. If the reader of this message is not the intended recipient or an agent responsible for delivering it to the intended recipient, you are hereby notified that you have received this document in error and that any review, dissemination, distribution, or copying of this message is strictly prohibited. If you have received this communication in error, please notify us immediately, and delete the original message.