ML18065A308

Forwards non-proprietary Status Rept on CEOG Activities Concerning Primary Water Stress Corrosion Cracking of Inconel-600 Penetrations.

ML18065A308
Person / Time
Site:	Palisades
Issue date:	11/27/1995
From:	Smedley R CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML18065A309	List: ML18065A308 ML18065A310
References
NUDOCS 9512010088
Download: ML18065A308 (2)

Text

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consumers Power l'OWERINli MICHlliAN"S l'ROliRESS Palisades Nuclear Plant: 27780 Blue Star Memorial Highway, Covert, Ml 49043

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November 27, 1 995 U S Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 DOCKET 50-255 - LICENSE DPR PALISADES PLANT PRESSURIZER SAFE END CRACK - SUBMITTAL OF NON-PROPRIETARY REPORT CEN-406-NP, "A STATUS REPORT ON CEOG ACTIVITIES CONCERNING PRIMARY.

WATER STRESS CORROSION CRACKING OF INCONEL-600 PENETRATIONS".

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In a letter dated~0ct,ober 7, 1993, Consumers Power Co submitted an engineering analysis and root cause evaluation for a crack discovered in a pressurizer nozzle safe end. This letter contained references to reports of research and investigations concerning primary water stress corrosion cracking (PWSCC). in the nuclear industry. One of the references was CEN-406-P, Revision 00, "A status Report on CEOG Activities Concerning Primary Water Stress Corrosion Cracking of lnconel 600 Penetrations," dated May 1991 .

To assist the NRC in docketing a copy of this report, our letter dated May 24, 1995 provided an affidavit to justify the report's proprietary designation in accordance with 10 .CFR 2. 790. After additional NRC questions concerning which parts of the report, if any, could be released for public access, it was decided that the issue could be best resolved by submittal of a non-proprietary version of CEN~

406-P.

Accordingly, the non-proprietary report CEN-406-NP, "A status Report on CEOG Activities Concerning Primary Water Stress Corrosion Cracking of lnconel-600 Penetrations." is submitted as Attachment 1.

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A CMS EIVER6YCOMPANY

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SUMMARY

OF COMMITMENTS This letter contains no new commitments and no revisions to existing commitments.

Richard W. Smedley Manager, Licensing CC Administrator, Region Ill, USNRC Project Manager, NRR, USNRC NRC Resident Inspector - Palisades Attachment