ML090850318

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Acceptance Review of Request to Use a Later Provision of ASME Code,Section XI Regarding Thermal Removal Processes
ML090850318
Person / Time
Site: Three Mile Island Constellation icon.png
Issue date: 03/26/2009
From: Peter Bamford
Plant Licensing Branch 1
To: Tom Loomis
Exelon Corp
Bamford, Peter J., NRR/DORL 415-2833
References
TAC ME0807
Download: ML090850318 (2)


Text

From: Peter Bamford Sent: Thursday, March 26, 2009 12:48 PM To: 'thomas.loomis@exeloncorp.com'

Subject:

Acceptance Review of TMI-1 Request to Use Later ASME Code Addenda, Pressurizer Thermowell - TAC ME0807 By letter dated March 6, 2009, Exelon Generation Company, LLC submitted a request to use a provision of a later addenda of the ASME Code,Section XI, than the current code of record at Three Mile Island, Unit 1 (TMI-1) concerning IWA-4461, "Thermal Removal Processes." The use of this later addenda is related to a project to mitigate a current Alloy 600/82/182 thermowell and to install a new equivalent thermowell at another location on the TMI-1 pressurizer.

The purpose of this email is to provide the results of the U.S. Nuclear Regulatory Commission (NRC) staff=s acceptance review of this request. The acceptance review was performed to determine if there is sufficient technical information in scope and depth to allow the NRC staff to complete its detailed technical review. The acceptance review is also intended to identify whether the request has any readily apparent information insufficiencies in its characterization of the regulatory requirements or the licensing basis of the plant.

The NRC staff has reviewed your request and concluded that it does provide technical information in sufficient detail to enable the staff to proceed with its detailed technical review and make an independent assessment regarding the acceptability of the proposed request in terms of regulatory requirements and the protection of public health and safety and the environment. If additional information is needed for the staff to complete its technical review, you will be advised by separate correspondence.

Peter Bamford NRR/DORL/LPL 1-2 Limerick & TMI-1 Project Manager 301-415-2833 E-mail Properties Mail Envelope Properties ()

Subject:

Acceptance Review of TMI-1 Request to Use Later ASME Code Addenda, Pressurizer Thermowell - TAC ME0807 Sent Date: 3/26/2009 10:38:44 AM Received Date: 3/26/2009 12:47:00 PM From: Peter Bamford Created By: Peter.Bamford@nrc.gov Recipients:

thomas.loomis@exeloncorp.com ('thomas.loomis@exeloncorp.com')

Tracking Status: None

Marshall.David@nrc.gov (Marshall David)

Tracking Status: None Edward.Andruszkiewicz@nrc.gov (Edward Andruszkiewicz)

Tracking Status: None Post Office:

Files Size Date & Time MESSAGE 11342 3/26/2009 Options Expiration Date:

Priority: olImportanceNormal ReplyRequested: False Return Notification: False Sensitivity: olNormal Recipients received: