ML030990183

ANO, Units 1 and 2, Email, Revised Response to Emeb RAI 7

ML030990183
Person / Time
Site:	Arkansas Nuclear
Issue date:	03/24/2003
From:	Sharon Bennett Entergy Nuclear Operations
To:	Alexion T NRC/NRR/DLPM/LPD4
Alexion T W, NRR/DLPM, 415-1326
Shared Package
ML030980062	List: ML030980045 ML030990073 ML030990081 ML030990109 ML030990157 ML030990160 ML030990183 ML030990189 ML030990195 ML030990200
References
Download: ML030990183 (4)

Text

gThomas Alexion - Revised response to EMEB RAI 7 Paae 1 1

. ..--- - - I From: "BENNETT, STEVE A" <SBENNE2@entergy.com>

To: Tom Alexion <twa~nrc.gov>

Date: 3/24/03 8:41AM

Subject:

Revised response to EMEB RAI 7 Tom, See attached expanded response to EMEB RAI #7 per your phone mail. If this is adequate we will add it to our response and send it out today. If we need additional discussion, we would like a call ASAP.

steve CC: "RIDEOUT, HERBERT R" <HRIDEOU@entergy.com>

f Thomas Alexion, - NRC EMEB RAI 7.doc Page Thomas Alexion -NRC EMEB RAI 7.doc Paae ii1 1 NRC EMEB RAI 7 In response to RG 1.104, positions C.1.b(3), C.1.b(4), C.4.d, and C.3.1, you state in Attachment 4 to the license amendment request, that a commercial grade dedication plan and various nondestructive testing will be implemented.

Describe the current status of implementation and available results of nondestructive examinations and fatigue life evaluations.

ANO Response:

The Ederer quality assurance program was invoked on the replacement trolley.

Ederer quality assurance program complies with the requirements of 10CFR50, Appendix B and ANSI/ASME NQA-1. The program encompasses the procurement of basic components from approved suppliers and the dedication of commercial grade items by Ederer for use in safety related applications. This dedication was done in accordance with EPRI NP-5652, Guideline for the Utilization of Commercial Grade Items in Nuclear Safety Related Applications (NCIG-07). After arrival on site ANO quality assurance was invoked for the installation process using the engineering design change process. The trolley met the non-destructive examination (NDE) requirements as reflected in EDR-TOP-1 Appendix A, as applicable.

The girder and end trucks meet the QA requirements of the original purchase specification. This specification invoked designs per EOCI #61 (CMAA-70) specifying all material to be A-36 steel with a factor of safety of 5, for this section. Calculations were performed on the girder and end trucks to verify that the existing welds and connections were adequate for the upgrade. The calculations identified that portions of the girder around the existing wheels required additional support due to the added seismic requirements of the new trolley and maximum critical loads. Additional reinforcement was added along the box girder. Welding, welding procedure qualification, and welder qualifications were performed in accordance with ANSI/AWS D1.1 and D14.1.

NDE requirements for this change included Magnetic particle examination. The results of these calculations are documented in the design change package for the crane upgrade.

In accordance with NUREG-0554, a visual inspection of the existing box girder was performed prior to and following the cold load test. This inspection did not reveal any areas requiring additional rework due to cracked welds or misaligned components. If problems were identified during this step in the installation process, they were to be documented and corrective measures, as necessary implemented prior to final acceptance. There were no identified deficiencies noted during this inspection that required modification or correction.

The use of 'commercial grade dedication" is meant to demonstrate that all the required controls necessary to meet the requirements of the single failure proof crane and those of the Ederer topical report are adequately maintained during the procurement of the new trolley components and during the installation process. Since the crane is non safety related, contract purchase documents invoked all the necessary OA requirements to address those requirements of NUREG-0554 and to apply those same requirements as necessary to the installation package. By doing so the entire replacement activity would

pThomas Alexion - NRC EMEB RAI 7.doc .Page 21 adequately capture all the QA requirements for meeting single failure proof criteria.

A fatigue review was performed based on the fatigue stress provisions of CMAA

70. This review is addressed through the re-evaluation of the box girder and its connections to meet the requirements of CMAA.

Appendix C to EDR-1 for the ANO L-3 crane has been updated to reflect more appropriate discussion for the 10CFR50, Appendix B application and is provided in Attachment 2.

l 0C:\WIND0WS\TEM P\GW)00001 .TMP O .TMP Paae 1-Mail Envelope Properties (3E7FOB12.861: 15: 14433)

Subject:

Revised response to EMEB RAI 7 Creation Date: 3/24/03 8:43AM From: "BENNETT, STEVE A" <SBENNE2@entergy.com>

Created By: SBENNE2 @enterev.com Recipients nrc.gov owf4_po.0WFNDO TWA (Thomas Alexion) entergy.com HRIDEOU CC (RIDEOUT, HERBERT R)

Post Office Route owf4_po.OWFNDO nrc.gov entergy.com Files Size Date & Time MESSAGE 220 03/24/03 08:43AM Part.001 857 NRC EMEB RAI 7.doc 31232 Mime.822 45522 Options Expiration Date: None Priority: Standard Reply Requested: No Return Notification: None Concealed

Subject:

No Security: Standard

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