ML101540646

E-mail from R. Guzman to D. Filchner Unit 1 Steam Dryer and Power Ascension Review

ML101540646
Person / Time
Site:	Susquehanna
Issue date:	06/03/2010
From:	Richard Guzman Division of Operating Reactor Licensing
To:	Filchner D Susquehanna
Guzman R, NRR/DORL, 415-1030
References
Download: ML101540646 (3)

Text

From: Guzman, Richard Sent: Thursday, June 03, 2010 6:37 AM To: dlfilchner@pplweb.com Cc: 'Coddington, Cornelius T'

Subject:

Susquehanna, Unit 1 (SSES1), EPU Power Ascension, Review of Data Package Re: Steam Dryer Performance at 107 and 110.5%

Duane, The purpose of this message is to inform you that the NRC staff has completed its review of the submitted information provided by PPL dated May 31, 2010. In its letter, PPL transmitted the SSES1 Steam Dryer Report for its evaluation of steam dryer performance based on the Main Steam Line Strain Gauge data collected at 3.5% power ascension step (110% of CLTP), as required by the License Condition 2.C.(36)(a)(3) to NRC.

Based on NRC staffs review of the SSES1 summary reports at 107% and 110.5% power, the staff finds it acceptable for SSES1 to ascend to the next and final plateau of the full EPU (3952 MWth) power level. The staff accepts the licensees conclusion that there is adequate margin in the dryer projected alternating stress at EPU, compared to the allowable value of 13600 psi.

The NRC staffs approval for SSES Unit 2 power ascension step at 103.5% of CLTP as documented by email dated June 2, 2009 is shown below only for additional background and information. Please contact me if you have any questions.

Thanks, Rich Guzman Sr. Project Manager NRR/DORL US NRC 301-415-1030 Richard.Guzman@nrc.gov From: Vaidya, Bhalchandra Sent: Tuesday, June 02, 2009 3:18 PM To: 'Coddington, Cornelius T'; dlfilchner@pplweb.com; ckhoffman@pplweb.com Cc: Mark Hartzman; Basavaraju, Chakrapani; Manoly, Kamal; Khanna, Meena; Pickett, Douglas; Boska, John; Guzman, Richard

Subject:

Susquehanna, Unit 2, EPU Power Ascension, Review of Data Package Re: Steam Dryer Performance at 103.5%

Subject:

Susquehanna, Unit 2, EPU Power Ascension, Review of Data Package Re: Unit 2 Dryer Report for the evaluation of steam dryer performance based on the Main Steam Line Strain Gauge data collected at 3.5% power ascension step at 103.5% of CLTP.

Neil Coddington/Duane Filchner, PPL,

On May 29, 2009, PPL transmitted Unit 2 Dryer Report for it's evaluation of steam dryer performance based on the Main Steam Line Strain Gauge data collected at 3.5% power ascension step (103.5% of CLTP), as required by the License Condition 2.C.(36)(a)(3) to NRC.

This is to inform you that the NRC staff has completed its review of the information provided by PPL that provided Unit 2 Dryer Report for its evaluation of steam dryer performance based on the Main Steam Line Strain Gauge data collected at 3.5% power ascension step, and did not identify any concerns with the submitted data.

Bhalchandra K. Vaidya Licensing Project Manager NRC/NRR/DORL/LPL1-1 (301)-415-3308 (O) bhalchandra.vaidya@nrc.gov E-mail Properties Mail Envelope Properties (F5A4366DF596BF458646C9D433EA37D72A036904B2)

Subject:

Susquehanna, Unit 1 (SSES1), EPU Power Ascension, Review of Data Package Re: Steam Dryer Performance at 107 and 110.5%

Sent Date: 6/3/2010 6:37:28 AM Received Date: 6/3/2010 6:37:00 AM From: Guzman, Richard Created By: Richard.Guzman@nrc.gov Recipients:

dlfilchner@pplweb.com (dlfilchner@pplweb.com)

Tracking Status: None ctcoddington@pplweb.com ('Coddington, Cornelius T')

Tracking Status: None Post Office:

HQCLSTR01.nrc.gov Files Size Date & Time MESSAGE 8807 6/3/2010 Options Expiration Date:

Priority: olImportanceNormal ReplyRequested: False Return Notification: False

Sensitivity: olNormal Recipients received: