ML13178A010

NRR E-mail Capture - St. Lucie NFPA-805 LAR Acceptance Review Clarification Questions

ML13178A010
Person / Time
Site:	Saint Lucie
Issue date:	06/07/2013
From:	Siva Lingam Division of Operating Reactor Licensing
To:	Frehafer K Florida Power & Light Co
References
TAC MF1373, TAC MF1374
Download: ML13178A010 (2)

Text

1 NRR-PMDAPEm Resource From:

Lingam, Siva Sent:

Friday, June 07, 2013 5:29 AM To:

'ken.frehafer@fpl.com' Cc:

Quichocho, Jessie; Poole, Justin; Rodriguez, Rafael; Klein, Alex; Poole, Justin

Subject:

St. Lucie NFPA-805 LAR Acceptance Review Clarification Questions Below is the summary of the supplemental FPRA information needed to complete our acceptance review for St Lucie. Please provide the responses on the docket. Thank you.

(1) Findings PP-C3-01, ES-D1-01, CS-A3-01 and HRA-A2-02 are identified in Table V-1 but no corresponding dispositions are provided in Table V-2. Provide an updated Table V-1 which accurately cross-references to the Findings in Table V-2 or explain the reason for these exclusions from Table V-2 and provide a revised Table V-2 that includes these findings.

(2) Table V-1 identifies 25 SRs as Not Met and 8 as meeting CC-I only. Examples include but are not limited to Findings ES-C2-01, HRA-A2-01, HRA-B3-01, HRA-B3-02, and HRA-A4-01. Furthermore, the following PRA HRA modeling findings are noted:

(a) Of the 12 HRA-related SRs from Part 4 of ASME/ANS RA-Sa-2009, four SRs were identified as Not Met, and three are only met at CC-I. Additionally, HRA-related findings are also written against other non-HRA SRs, e.g., FQ-C1 and ES-C2.

(b) Finding HRA-A2-01 noted that the fire-related manual actions were not included as basic events in the fire PRA model but rather were incorporated into the model by altering the failure probability of a related equipment failure basic event and concluded that [the] documentation is not sufficient to support FPRA peer review and future use.

(c) The dispositions to SRs HRA-D2-01 and HRA-C1-01 note the use of bounding multipliers to account for dependencies between fire-related HFEs and the dispositions to SRs HRA-B3-02 and HRA-A4-01 note the use of the screening approach for adjusting FPIE model HEPs.

Provide the results of a post-disposition self-assessment of the capability category of each of the 25 SRs identified by the peer review as Not Met or meeting CC-I only. For each SR determined to not be met or to not meet CC-II or better, provide a justification for why this is acceptable for the NFPA 805 application (i.e.,

technically adequate to support the FREs and post-transition plant change evaluations). In the self-assessment, specifically address why the dispositions to the SRs identified in items (b) and (c) resolve the associated findings and why the HRA is adequate to support the NFPA 805 application. The response to this RAI should be provided in a revised Table V-2 or new Table V-3.

Hearing Identifier:

NRR_PMDA Email Number:

735 Mail Envelope Properties (BE1CC4A72435624D84F8699734202B3ED58753FEB6)

Subject:

St. Lucie NFPA-805 LAR Acceptance Review Clarification Questions Sent Date:

6/7/2013 5:28:45 AM Received Date:

6/7/2013 5:28:00 AM From:

Lingam, Siva Created By:

Siva.Lingam@nrc.gov Recipients:

"Quichocho, Jessie" <Jessie.Quichocho@nrc.gov>

Tracking Status: None "Poole, Justin" <Justin.Poole@nrc.gov>

Tracking Status: None "Rodriguez, Rafael" <Rafael.Rodriguez@nrc.gov>

Tracking Status: None "Klein, Alex" <Alex.Klein@nrc.gov>

Tracking Status: None "Poole, Justin" <Justin.Poole@nrc.gov>

Tracking Status: None

"'ken.frehafer@fpl.com'" <ken.frehafer@fpl.com>

Tracking Status: None Post Office:

HQCLSTR01.nrc.gov Files Size Date & Time MESSAGE 2428 6/7/2013 5:28:00 AM Options Priority:

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