ML070950030

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03/06-08/2007 Handout References for Fire Protection Transition Pilot Plant Observation Visit at Shearon Harris Nuclear Power Plant
ML070950030
Person / Time
Site: Harris Duke Energy icon.png
Issue date: 02/10/2007
From:
- No Known Affiliation
To:
Office of Nuclear Reactor Regulation
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Download: ML070950030 (48)


Text

Handout Reference 1 NFPA 805 Transition March HNP Pilot Observation Visit Welcome to Harris Plant Chris Burton Director of Site Operations March 6, 2007

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  • Progress Energy

NFPA 805 Transition March HNP Pilot Observation Objectives and Background Jeff Ertman, PE Project Manager David Miskiewicz PE Fire PRA Lead March 6, 2007 Nuclear Generation Group IProgress Energy

NRC HNP Pilot Observation Visit Objectives and Background Outline:

o Transition Project Scope and Goals P Project Background P Plant FP Program Based on NFPA 805

  • NFPA 805 Introduction
  • Performance Based Approach
  • NFPA 805 Change Process I License Condition P Purpose of this Observation Visit Page 3

, Progress Energy

Fleet FP Initiatives Project NFPA 805 Project Goals e

Address Industry FP Issues with Manual Actions and Multiple Spurious Operations e

Improve safety focus through the performance based, risk informed approach Establish a common Fire Protection Program across fleet Advance Fire Protection and PSA personnel knowledge and skills Page 4 Progress Energy

Fleet FP Initiatives Project NFPA 805 Organization FP Initiatives Core Team Organization Includes Fleet Fire Brigade Trainer Team SProgress Energy Page 5

Fleet FP Initiatives Project / NFPA 805 Overview - Conceptual Transition Plan p

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~JPmgress Energy Page 6

Fleet FP Initiatives Project / NFPA 805 Overview - Work Flow Summary Classical Fire Protection HNP LAR June 2008 CR3 LAR August 2009 RNP LAR August 2010 BNP LAR August 2011 LAR and Transition Program Report Implement-ation Fire PRA C',

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Page 7 Progress Energy

Fleet FP Initiatives Project / NFPA 805 Major Elements

  • "This standard specifies the minimum fire protection requirements for existing light water nuclear power plants.... "

b Use of existing deterministic design criteria and NRC approved alternatives when appropriate P Provides Performance Based Design Options P Includes a Risk Informed Change Process - replaces current FP License Condition change process (50.59 equivalent)

P Applicable during all mode of operation P Meet Chapter 3 Fundamental Program Elements Page 8 Progress Energy

Fleet FP Initiatives Project / NFPA 805 Conceptual Plant Program Progress Energy-NGG Fire Protection Program Template E'

E~rt, pe' NFPA8 55 C apters 3 and 4

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-TMethods Procedures and Methods Most will be NGGC level Rev 3/3/2007 Progress Energy Page 9

Fleet FP Initiatives Project NFPA 805 Change Process License Condition

  • Today's Fire Protection License condition P Approved Fire Protection Program must be maintained o Changes to the FP Program may be made without prior approval if the 'ability to achieve and maintain safe shutdown' in the event of a fire is maintained

" Licens6 condition under NFPA 805 will be revised to use Fire PRA insights o Risk Informed Criteria as established per Reg Guide 1.205 o Changes below the threshold established in RG 1.205 will not require prior NRC approval Page 10 Progress Energy

Fleet FP Initiatives Project / NFPA 805 FP Change Process Yes No Page 11 P

Progress Energy

Fleet FP Initiatives Project / NFPA 805 Performance Based - Compartment Fire "The Physics" Page -12 P Progress Energy

Fleet FP Initiatives Project / NFPA 805

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Performance Based - Compartment Fire The Engineering Page 13 Pag Progress Energy

Fleet FP Initiatives Project / NFPA 805 Fire PRA-Overview SSD PRA Assure one train available Determine likelihood of train failure 3 hour3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> wrap good if no suppression, Wrap effectiveness is based on 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> wrap good with suppression actual fire conditions and probability of suppression Fire assumed to engulf entire area.

Fires can be based on actual ignition sources If the cable is protected it is Protected equipment can randomly assumed available, if not protected fail, unprotected equipment may it is assumed failed still function Control room and "feasible" manual All human actions have a failure actions always assumed successful probability Equipment/functions not credited Credit plant equipment that can not considered, e.g. feed & bleed reduce fire risk, e.g. feed & bleed 1Progress Energy Page 14

NFPA 805 Fire PRA - Overview

  • Internal Events PRA Self Assessment
  • Internal Events PRA Peer Review
  • Fire PRA Development
  • Fire PRA Review (NRC, Peers)
  • PRA Support for NFPA-805 change evaluations Pg Progress Energy Page 15

NFPA 805 Fire PRA - Overview

. Fire PRA Tasks (NUREG/CR-6850) o Plant Partitioning / Ignition Frequencies I Component Selection o Circuit Analysis o PRA modeling

/ Cable Routing P Scoping / Detailed Fire modeling o Human Reliability I Screening / Quantification P Uncertainty P Progress Energy Page 16

NFPA 805 Fire PRA - Overview

  • Fire PRA uses a progressive screening approach
  • Task iteration is expected P As we learn more about fire scenarios we can better determine the need for additional data to address the issues.

Page 17 Progress Energy

Fleet FP Initiatives Project / NFPA 805 Program Interface Plant Chang Fire PRA / Fire Protection Program Interface P Progres Energy Page 18

Fleet FP Initiatives Project / NFPA 805 Goal of Pilot Meetings

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0 Obtain NRC feedback to ensure we are on track for development of:

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NFPA 805 LAR Pag Progress Energy Page 19

Fleet FP Initiatives Project / NFPA 805 HNP Pilot Observation Visit Additional Q &A Pg Progress Energy Page 20

Handout Reference 2%

NFPA 805 Transition March HNP Pilot Observation Fire PRA Task 8,Scoping Fire Modeling March 6, 2007 David Miskiewicz, Fire PRA Lead Ricardo Davis-Zapata, PSA Engineer Nuclear Generation Group Progress Energy

NFPA 805 Fire PRA-Task 8 o Purpose - NUREG/CR-6850 P Screen out those fixed ignition sources that do not pose a threat to the targets within a specific fire compartment, and P To assign severity factors to unscreened fixed ignition sources

  • Zone of Influence determination (ZOI)

P Based on Fire modeling o Compared SDP, FIVE, 6850 P Evaluating Oconee Report

  • Walkdowns by ignition source to identify targets (next level determination of fire scenarios) o Source-Target Database o Multiple HRR Page 2 Progres Energy

Handout Reference 3 NFPA 805 Transition March HNP Pilot Observation Fire PRA Task 11, Detailed Fire Modeling F

7

C March 6, 2007 David Miskiewicz, Fire PRA Lead iNuclear Generation Group Progress Energy

NFPA 805 Fire PRA-Task 11

  • Refine fire analysis o Improve HRR determination o Determine fire growth vs. time
  • Assess suppression capability P Automatic Suppression credit o Assess fire brigade response time/reliability
  • Determine HGL Potential P Floor area vs. ceiling height vs. HRR
  • Define damage sets Page 2 Progress Energy

Handout Reference 4 NFPA 805 Transition March HNP Pilot Observation Fire PRA Strategy Going Forward March 7, 2007 David Miskiewicz, Fire PRA Lead Nuclear Generation

,Gro'up:

Progress Energy

NFPA 805 Fire PRA -- Future

  • Task 5-Fire induced PRA models o Add/modify internal events logic to model new spurious events and other fire protected related components to account for fire initiators and phenomena
  • Task 7 - Quantitative Screening P Using FRANC
  • Task 3,9,10 - Circuit Routing and Analysis
  • Task 12 - HRA P Blocked internal event actions 0 New Manual actions P Industry participation
  • Task 13 - Seismic Interaction
  • Task 14 - Quantification o Scenarios using FRANC o Single top for final (based on XINIT)
  • Task 15-Uncertainty
  • Task 16 - Documentation Page 2 Progr Energy

NFPA 805 Fire PRA - Future

  • Internal Events Model P Self Assessment o Updates o Peer Review
  • Change Evaluations Page 3 Progres Energy

Handout Reference 5 NFPA 805 Transition Chapter 3 - Manual Firefighting Update Alan Holder, CES/FP March 8, 2007 Nuclear

,Generation Group Progress Energy Page 1

PE Manual Firefighting-I Fire Brigade Initiatives

. Establish common Fire Brigade Training Programs.:across PE fleet supporting NFPA-805 Transition

. Conduct of Radiological Reviews (Table (

Brigade

)-1) of Pre-Fire Plans and Fire Training Materials Pg Progress Energy Page 2

PE Manual Firefighting/

Fire Brigade Initiatives e

NFPA 1403 Lesson Plan Topics Review Schedule o Safety & Orientation (complete) 0 Portable Extinguishers (complete)

  • Fire Hose, Appliances, Streams & Foam (complete)
  • Ladders (complete)

D Ventilation (complete) o Fire Behavior s PPE P Forcible Entry o Overhaul o Water Supply (B.5.b) v Search & Rescue P Fire Attack P Site Specific (Page 3

, Progress Energy

PE Manual Firefighting I Fire Brigade Initiatives Table G-1 NFPA 805 - Radioactive Release Transition Review Guidance NFPA 805 Requirements Implementing Guidance Results (Example)

Radiation release to any unrestricted area Review pre-fire plans.

Review of Pre-Fire Plans is underway to determine due to the direct effects of fire suppression Ensure for locations that have the potential for adequacy of guidance for containment and monitoring of activities (but not involving fuel damage) contamination that specific steps are included for potentially contaminated fire suppression water (run-off) shall be as low as reasonably achievable containment and monitoring of potentially for applicable plant areas. Review results to be provided to and shall not exceed applicable 10 CFR, contaminated fire suppression water. Update pre-site FP PM for inclusion in Pre-Fire Plans.

Part 20, Limits.

fire plans as necessary.

Review fire brigade training materials.

A systematic review of fire brigade training materials is Ensure that training materials deal specifically underway within NGG Fire Protection Training PEER with the containment and monitoring of Group. A focused approach to fire brigade training has potentially contaminated fire suppression water.,

aligned the current fire brigade training schedule as well as Update training materials as necessary.

the NFPA-805 transition process utilizing a rolling wave method beginning with the HNP and providing lesson learned for incorporation at all PE sites.

Progress Energy Page 4

PE Manual FirefightingI Fire Brigade Initiatives Review of Radiological Release, Table G-1 Questions?

P5Progress, Energy Page 5.

Handout Reference 6 Summary of Comments on Pis

  • Code of record edition

" Citations of current regulatory basis

" Use of terms safety-related, important to safety in lieu of "important to nuclear safety"

  • Further refinement of compliance statements on a sub-section breakdown

" Appropriate implementing reference

  • Previous approval (submittal v. response from NRC in SER)

SPr ogre*ss Eergy

Handout Reference 7 OPrmess BMWo

'Purpose of the MT ERFBS 0 At HNP to protect circuits from fire damage

- the-MT -ER--FBS-was i-nstal-l-ed.-to-orovide a.- hour barrier for electrical raceway HNP has approximately 1250 feet of the 3 hour3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> MT ERFBS and we are the only user in the industry.

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Establish-- Barrier Worth 9 A fire test was conducted for MT.

The-te-s-fing used HNP--sp-ecific--insta-l-lati-o-n designs, materials, and cable fills.

9 The testing results were used to develop a calculation that identifies the 66 rating of each protected raceway.

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Establish Barrier Worth =MT ERFBS Testing (Cont) 9 Results D Item A 1/2 inch free air condu.it 21 % fill - 134 min D Item B 3 inch conduits free air 21 % fill - 180 min D Item C-Item Aw/4 inch tube steel supt -115min D ItemD-Item Cw/ upgraded supt -153min D Item E 1-1/2 free air conduits 21 &28% fill 159 min D Item D - Wall mounted 2 inch conduit 28% fill-180 min D Item G - 18 x 18 x 13 j-box - 163 min

MT ERFBS

" Calc Results

" Revised SSA removed credit for MT in 6 fire zones--(1 -A-ACP 1 -A-34-RHXA 1 -A-5-COMA 1 -A-4-COMC, 5-0-BAL, Unit 2 YARD) of approximately 400 ft.

" One zone, 1-A-3-TK, with upgrades to support coverage andadding collars onjoints can achieve 3* hr rating (100 ft).

" Remaining fire zone barriers are rated 115 -

169 minutes.

Handout Reference 8 9 Existing Engineering Equivalency Evaluations


(-8-6-10--Eval.uat-i-o-n-s)-wi-l-lb-e-scree-ne-d-fo.r-------

adequacy.

  • FPIP-01 25 Developed for screening task.
  • Used only for current 86-1 O's pre-transition!

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EEEE Screening

" Purpose to ensure adequate quality of the EEEE's being transitioned and provide NRC with a consolidated table for review.

" EEEE's are not considered to have prior NRC approval.

" NEI 04-02 allows transition as described in 4.3.1 however no guidance is provided for screening.

" NEI 02-03 guidance is utilized

EEEE Screening 0- Out put is a table of acceptable EEEE ) s which will be included in the LAR.

9 Any EEEE which does not meet the screening criteria will be further evaluated.

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Handout"Reference 9 NRC Response to FAQ 06-0008 [DMF] {3/2/2007}

FAQ 8 - NRC PROPOSAL PURPOSE A high-level purpose of NFPA 805, as implemented under the endorsement of 10 CFR 50.48(c),

is to clarify how licensees may use the flexibility afforded by 10 CFR 50.48(c)(2)(vii) and 10 CFR 50.48(c)(4) to develop a process to maintain the flexibility available to licensees under Generic Letter (GL) 86-10 evaluations.

DESCRIPTION 10 CFR 50.48(c) requires licensees to submit 10 CFR 50.90 licen*a*aendments for any changes to Chapter 3 features of NFPA 805, unless they have bM'e* previously approved by the NRC. Under the standard license condition of GL 86-10, license~es.are allowed to make certain types of changes without prior NRC approval as long as the46hangs db not adversely affect the plant's ability to safely shutdown in the event of a fire.

To apply this proposal licensees must send the prorse rocess/methods proposal tothe NRC for approval. Then, they ma t{pe appr~oved processes/methods without prior approval for specific applications, as Iorns the," apphlcation is within the bounds of staff approval of the proposed methods/processes.

V; The licensees' proposal must request an 6dment under 10'NOFR 50.90, using the flexibility available under 10 CFR 50.48(c)(vii) and 1'OC-FR50.48(c)(iv) to:aloýw 10 CFR 50.48(c) licensees to establish a process that enables them

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ke change to Chapter 3 of NFPA 805, as long as those changes only affect the refe listings, such as Underwriters Laboratory, Inc., 8r Factory Mutual~stings. Under the proposal the licensee will commit to a process to evaluate deviations fromris.econdary codes and listings required by NFPA 805 Chapter 3., "eNFPA 809 change evaluation process will be used to ensure that nuclear safety performance goals, objectives and iti**ria and satisfied along with defense-in-depth and safety margins, asdesribtedh10 CF..50..48(c)(2)(vii).

Therefore, a~phcation ofti~s, pcsethod requires two steps. First, the process/methods and bounds of the process must be submitted to the NRC for approval. Second, following approval e NRC, a plantspecifichanges made under this license amendment will undergo the same evaluation process as part of 10 CFR 50.48(c)(2)(vii). This second step, application of the process/metllod, will not require NRC approval.

This proposal would not apply to NFPA 805 Chapter 3 changes that do not relate to NFPA codes or listings. Changa to other portions of Chapter 3 of NFPA 805 would continue to require individual 50.90 amendments addressing the specific deviation.

PROPOSAL "License may perform change evaluations for, deviations from the NFPA codes mentioned in NFPA 805, and listings for rated components, without a 10 CFR 50.90 submittal, as long as the specific requirement for the feature is not included in NFPA 805 Chapter 3 itself, and the NFPA 805 change process is used."

NRC Response to FAQ 06-0008 [DMF] {3/2/2007}

JUSTIFICATION Since this proposal will be approved by the NRC as part of the 50.90 submittal, it will meet the legal requirement of 10 CFR 50.48(c)(2)(vii). The basis for the change evaluation to be included in the 50.90 submittal will be that each individual change will be evaluated against the NFPA 805 change process (nuclear safety requirements, defense-in-depth and safety margins evaluation), and providing this flexibility does not adversely impact the features required by Chapter 3 of NFPA 805 to protect fire safe shutdown at the plant. By only allowing changes to the secondary codes and listings, the changes are bounded. All features required by Chapter 3 will continue to be required. Secondary features may be changed based on an evaluation, using the required methods in a similar manner as is currently allowed under the Generic Letter 86-10 license condition, without prior NRC approval.

CONCLUSION This proposal will permit, within the bounds of secondar-yrodes and listings, and following NRC approval of a 50.90 amendment, licensees to evaluate fire protection featmlres without prior NRC approval. Other issues not addressed by NFPA codes or listings would have to be submitted for NRC approval on a case by case basis.

1,'

NRC Response to FAQ 06-0008 [DMF] {3/2/2007}

EXAMPLE Section 3.6.1 requires a hose system to be installed per NFPA 14. Using this process/method, a hose system must be available and have access to "all power block buildings," and must also be a Class III standpipe, but may deviate from other specific requirements of NFPA 14. These deviations must not contradict other text in Chapter 3 of NFPA 805, and the NFPA 805 change process is used.

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NRC Response to FAQ 06-0008 [DMF] {3/2/2007}

SECTION APPLICATION - FAQs that would benefit from this method are listed.

3.3.1.2(1) - Listing for pressure-impregnated or coated with listed fire-retardant wood. - FAQ 06-0019 3.3.1.2(2) - Fire resistance of plastic sheeting - per NFPA 701 3.3.1.2(5) - Controls on combustible and flammable liquids - per NFPA 30 or other applicable NFPA standards 3.3.1.2(6) - Control on use and storage of flammable gases - per NFPA standards - FAQ 06-0020 3.3.1.3.1 - Hot work procedure - per NFPA 51 B, NFPA 241, 3.3.2 - Structural integrity - per NFPA 220 3.3.3 - Interior finishes - per NFPA 101 3.3.5.1 - Listing of cable for plenum use - FAQ 06-0022 (Partial) 3.3.6 - Roofs - per NFPA 256 3.3.7.1 - Storage of flammable gas - per NFPA 50A 3.3.8 - Bulk storage of flia-riabeocombustibleliquids - per NFPA 30- FAQ 06-0023 3.4.1 (a) - On-site fire brigaide c*apaihlity - per NFPA 600, 1500, and 1582-FAQ 06-0007 3.4.3(a)(1) - Fire 1b5gale traming - per NFPA 6.0 or 1500 3.4.4 - Fireliqhting equipmr=ti

- per applica-ble NFPA standards - FAQ 06-0026 3.5.1(b) - Flow irate calculatiocP_ per N'FPA 13 or 15 3.5.2 - Fire water tan*I*-

per NFPA 22 3.5.3 - Fire pumps - per NFPA 20 3.5.10 - Fire main - per NFPA 24 3.5.15 - Fire hydrants - per NFPA 24 3.6.1 - Standpipes - per NFPA 14 3.7 - Fire Extinguishers - per NFPA 10 3.8.1 - Fire alarm - per NFPA 72

NRC Response to FAQ 06-0008 [DMF] {3/2/2007}

3.8.2 - Fire detection - per NFPA 72 3.9.1 - Water fire suppression - per appropriate NFPA standards including 13, 15, 750, and 16 3.10.1 - Gaseous fire suppression - per NFPA 12, 12A and 2001 3.6.3 - Listing of hose nozzles as electrically safe 3.11.1 - Building separation - per NFPA 80A 3.11.2 - Fire barriers - per NFPA 251 3.11.3 - Listing of fire rated door assemblies, fire dampers.

3.11.3 - Fire barrier penetrations per-NFPA 80, 90A, 101 3.11.4 - Listing of fire rated devices for through penetration,ie stops.s 7

Handout Reference 10 Harris NFPA 805 Pilot Observation Meetings / Reviews 2007 Schedule The following is the current schedule for the Harris NFPA 805 pilot meetings. Process for implementation is provided after the table. Grey background has been completed.

Revisions are in red and underlined.

Pilot Meeting Date Topic Type of Review Plant Location Harris Follow-

,Jan 23,

~~Fire PRA Products.

Detail. Review *of up Phone 9-1.1:30 pmn T~ask 7.1 Plant Partitioning Products/

Call Task 7.6 Igiition Frequencies Calculations (send products Task 7.2 Component Jan 9)

'Selection Harris Follow-Feb5 Classical Fire Protection Detail Review~

of up lPhone.,12:30-2.:00 pm i Task 2. 1.1 Chapter 3 Non Products Call Thre Area Transition Results Calculations (send products Tasks 3.0 Radiological Jani '17).

Release Implementation Harris Harris Maprch T6 1-4 pm, FirePRA Products Detail Review of March 7, 8 am-3 Task 7.8 Scoping Products /

pmn Task 7.11 Detailed Fire Calculatios (send products Modeling*

n_ eb20 FQ Harris

Harris, March 8. 1Clssic-l Fire Protection Detail Review of 8amN-3pm Task 271.3 -Manual Products /

Firefighting

  • Calculations (send products Task 2.2 Equivalency Feb: 22).

Evaluations*

Task 2.3.2MT Wrap BarrierN Harris Phone April Tirneframie Fire PRA Products.

Detail Review of Call Pereviously reviewed products Products Follow-up call as Task 7.1/7.2/7.6 and related Results needed FAQs Harris

Harris, April 18, 1-5 pm SSA1 1/Electrical Detail Review of NRC or April 19, 8am-Task 7.3/7. 10 Circuit Products /

Phone 3pmn Analysis for PRA Calculations Call Task 5.3 Non-power (send products operations review April 4)

Task 4.2 Fire Area Transition selected results Schedule 2007 NRC Harris Pilot Reviews R3.doc Rev 2/10/2007 Page I of 3

Harris NFPA 805 Pilot Observation Meetings / Reviews 2007 Schedule Pilot Meeting Date Topic Type of Review Plant Location Harris Harris May 29, 1-5 pm Fire PRA Products Detail Review of May 30, 8-5pin Task 7.5, Fire Induced PRA Products /

May 31, 8-3pm Model Results Task 7.12 Post Fire HRA Send products SSA Products May 15th Task 4.4 Update T-H Analysis Potential Task 4.5 Recovery Action expanded Update meeting at FAQ NEI meeting.

Harris/

Phone June Time Frame Follow-up to previous Detail Review of Call as needed.

reviews Products /

Results Harris/

TBD Later in July Fire PRA Products Meeting Oconee Raleigh (send products Task 7.14 Fire Risk Presentations or June 26)

Quantification Selected Charlotte Scenarios Include Detail Duke to provide FP Prokpram Review of input on dates Task 8.0 Change Evaluations Products /

Selected Items / Scenarios Results when available Harris Harris September TBD Detail Review of Products /

Note NEI Forum Results Harris /

Raleigh Nov 12-14 Combined meeting general Meeting Oconee

/Charlotte status, methodologies, LAR Presentations

/ RII ?

content, etc Harris Harris Feb 4-8, 2008 PRA Audit NRC Audit

    1. Meetings that flag this note will likely contain some sensitive or proprietary information.
  • Documents will not be transmitted ahead of the meeting for this topic; they will be provided during the site pilot visit.

Schedule 2007 NRC Harris Pilot Revicws R3.doc Rev 2/10/2007 Page 2 of 3

Harris NFPA 805 Pilot Observation Meetings / Reviews 2007 Schedule Proposed implementation process:

1. 'Detail Review' type observation meeting under "Type of Review" is conceptually intended to be a small team from the NRC to focus on a narrow scope. There would be minimal meeting preparation other than preparation and review of the products themselves. Some meetings listed will be a follow-up phone call instead of face to face meetings.
2. The products will be transmitted to the NRC approximately a week prior to the meeting/phone call. It is recommended that a phone call be used to describe the product presented.
3. NRC comments/questions on the products will be listed on the Parking Lot; the Parking Lot will be posted to the NEI Web Board for the other transition plants.
4. Topic defines the skill area and products to review. The products may be adjusted depending on progress, but the skill area will not change.
5. Results will be discussed at next face to face NEI NFPA 805 Task Force meeting.

The meeting duration may need to be increased to accommodate this. Task force members may ask NRC clarification questions on new parking lot items during the public/NRC part of the meeting.

6. Duke/PE will send a representative to the meetings for the other Pilot.
7. The meeting length will typically be 4-6 hours, but may be longer, as agreed upon by NRC/pilot plant. Additional time will be added as needed to accommodate plant walkdowns when the pilot meeting is at the site for observation.

Schedule 2007 NRC Itan-is Pilot Reviews R3.doc Rev 2/10/2007 Page 3 of 3