ML15054A406

NRR E-mail Capture - Request for Additional Information Re. Turkey Point Unit 3 Steam Generator Tube Inspection Report

ML15054A406
Person / Time
Site:	Turkey Point
Issue date:	02/20/2015
From:	Audrey Klett Plant Licensing Branch II
To:	Hanek O Florida Power & Light Co
References
TAC MF5087
Download: ML15054A406 (3)

Text

NRR-PMDAPEm Resource From: Klett, Audrey Sent: Friday, February 20, 2015 4:18 PM To: Mitch.Guth@fpl.com; 'Hanek, Olga' (Olga.Hanek@fpl.com)

Subject:

Request for Additional Information re. Turkey Point Unit 3 Steam Generator Tube Inspection Report (TAC MF5087)

Hi Mitch, Hi Olga, By letter dated October 6, 2014 (Agencywide Documents Access and Management System (ADAMS)

Accession No. ML14302A079), and in accordance with Technical Specification (TS) 6.8.4.j, Steam Generator Program, and TS 6.9.1.8, Steam Generator Tube Inspection Report, Florida Power & Light Company (the licensee) submitted information summarizing the results of the Spring 2014 steam generator (SG) tube inspections performed at Turkey Point Nuclear Generating Unit No. 3. The licensee performed these inspections during Refueling Outage 27.

The U.S. Nuclear Regulatory Commission Staff reviewed the submittal and identified areas where it needs additional information and clarification to complete its review for determining if the licensee provided the information required by its TSs and if there are any technical issues that warrant follow-up actions. The Request for Additional Information (RAI) is provided below. As discussed with Ms. Olga Hanek of the licensees staff on February 18, 2015, the NRC requests the licensee to respond to the RAI within 60 days of this email.

RAI-1

Please describe the results of the following: plug visual inspections, supplementary primary side inspections to address Westinghouse NSAL 12-01, and the secondary side inspection and cleaning.

RAI-2

Please discuss whether any degradation of the feedwater ring has been observed. A letter dated January 10, 2008 (ADAMS Accession No. ML080220439), implies degradation has been observed, but a letter dated January 30, 2009 (ADAMS Accession No. ML090570046), implies there is no degradation.

RAI-3

Please describe how it was determined that there was no degradation in the tube with the permeability variation (row 23, column 71) in SG B.

RAI-4

One axial indication was reported near a hot leg tube end in SG B. Was this indication attributed to primary water stress corrosion cracking?

RAI-5

Please clarify the cause of the volumetric indication in the tube at row 3, column 43 in SG B. For example, is it wear attributed to a loose part?

RAI-6

Please confirm that there were:

1

a. 24 indications in 18 tubes in SG A with anti-vibration bar (AVB) wear;

b. 39 indications in 22 tubes in SG B with AVB wear;

c. 142 indications in 93 tubes in SG C with AVB wear;

d. 3 indications in 3 tubes in SG A with wear at broached tube support plates (TSPs);

e. 6 indications in 6 tubes in SG B with wear at broached TSPs;

f. 11 indications in 11 tubes in SG C with wear at broached TSPs; and

g. 4 indications in 4 tubes in SG B with wear at the hot leg baffle plate.

Audrey Klett Project Manager NRR/DORL/LPLII-2 301-415-0489 2

Hearing Identifier: NRR_PMDA Email Number: 1887 Mail Envelope Properties (Audrey.Klett@nrc.gov20150220161700)

Subject:

Request for Additional Information re. Turkey Point Unit 3 Steam Generator Tube Inspection Report (TAC MF5087)

Sent Date: 2/20/2015 4:17:47 PM Received Date: 2/20/2015 4:17:00 PM From: Klett, Audrey Created By: Audrey.Klett@nrc.gov Recipients:

"Mitch.Guth@fpl.com" <Mitch.Guth@fpl.com>

Tracking Status: None

"'Hanek, Olga' (Olga.Hanek@fpl.com)" <Olga.Hanek@fpl.com>

Tracking Status: None Post Office:

Files Size Date & Time MESSAGE 2808 2/20/2015 4:17:00 PM Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:

Recipients Received: