ML091690450

E-mail from M. Modes of USNRC to J. Richmond of USNRC, Regarding Feeder on Fatigue

ML091690450
Person / Time
Site:	Oyster Creek
Issue date:	01/12/2009
From:	Modes M Engineering Region 1 Branch 1
To:	Richmond J Engineering Region 1 Branch 1
References
FOIA/PA-2009-0070
Download: ML091690450 (3)

Text

Nathan Lafferty From: Michael Modes , IZI-"

Sent: Monday, January 12, 2009 11:09 AM To: John Richmond

Subject:

Feeder on Fatigue Attachments: Fatigue Feeder.doc Attached.

1 4

Received: from R1CLSTR01 .nrc.gov ([148.184.99.7]) by R1 MS01 .nrc.gov

([148.184.99.10]) with mapi; Mon, 12 Jan 2009 11:08:58 -0500 Content-Type: application/ms-tnef; name="winmail.dat" Content-Transfer-Encoding: binary From: Michael Modes <MichaeI.Modes@nrc.gov>

To: John Richmond <John.Richmond@nrc.gov>

Date: Mon, 12 Jan 2009 11:08:55 -0500

Subject:

Feeder on Fatigue Thread-Topic: Feeder on Fatigue Thread-Index: AQHJd NATi3pNE9WyhU6765B4vn8GXA==

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I 3.18 Fatigue Monitoring Program

a. Scope of Inspection Proposed SER Appendix-A Item 44, Metal Fatigue of Reactor Coolant Pressure Boundary, stated (in part):

The existing program is credited. The program will be enhanced to use the EPRI-licensed FatiguePro cycle counting and fatigue usage factor tracking computer program.

The inspectors interviewed the program manager and determined that the FatiguePro program, although in place and ready-to-go, has not been implemented. The existing, credited program, is currently the fatigue evaluation program of record. Exelon is waiting for the NRC to resolve its concerns about a mathematical summation technique used in FatiguePro, with industry working groups, prior to making FatiguePro the official fatigue evaluation program at Oyster Creek. The program was evaluated by the inspectors in March of 2006 (Report 05000219/20006007). The inspectors determined that Exelon's proposed implementation had not changed in the interim.

b. Observations The inspectors determined that Exelon's proposed implementation had not changed in the since the NRC reviewed it in March of 2006.