ML16197A001

NRR E-mail Capture - TMI Relief Request RR-16-01 Clarification

ML16197A001
Person / Time
Site:	Three Mile Island
Issue date:	07/14/2016
From:	Justin Poole Plant Licensing Branch 1
To:	Mascitelli F Exelon Corp
References
Download: ML16197A001 (2)

Text

NRR-PMDAPEm Resource From: Poole, Justin Sent: Thursday, July 14, 2016 2:56 PM To: Mascitelli, Francis J:(GenCo-Nuc)

Subject:

TMI relief request RR-16-01 clarification

Frank, As we talked, the staff is trying to better understand the configuration of the plant in order to review your request. To do that, the staff has the following need for clarification.

Background

In Table 1, Section 1 of the relief request, the licensee identified the affected component as weld number, RCT0001INCORENOZZLES, and Reactor Vessel lower head incore penetrations (52). The footnote to Table 1 states that RCT0001INCORENOZZLES includes both the J-groove weld and the nozzle-to-adapter weld.

It appears that the affected component is the nozzle-to-adapter weld. However, some parts of the relief request referenced a weld and other parts of the relief request mentioned welds.

Questions 1.How many nozzle-to-adapter weld(s) are there at the bottom of the reactor vessel that are connected to the bottom mounted instrumentation penetration?

2.If more than one nozzle-to-adapter weld exists, does this mean that a single weld number RCT0001INCORENOZZLES represents/applies to multiple nozzle-to-adapter welds?

3. How many nozzle-to-adapter weld(s) will be covered under the relief request?

4. What does (52) in Table 1 mean?

Justin C. Poole Project Manager NRR/DORL/LPLI-2 U.S. Nuclear Regulatory Commission (301)415-2048 1

Hearing Identifier: NRR_PMDA Email Number: 2942 Mail Envelope Properties (Justin.Poole@nrc.gov20160714145500)

Subject:

TMI relief request RR-16-01 clarification Sent Date: 7/14/2016 2:55:50 PM Received Date: 7/14/2016 2:55:00 PM From: Poole, Justin Created By: Justin.Poole@nrc.gov Recipients:

"Mascitelli, Francis J:(GenCo-Nuc)" <Francis.Mascitelli@exeloncorp.com>

Tracking Status: None Post Office:

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