ML20098A429
| ML20098A429 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 09/22/1995 |
| From: | Shelton D CENTERIOR ENERGY |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| GL-94-03, GL-94-3, PYCEI-NRR-1982L, TAC-M90107, NUDOCS 9509250369 | |
| Download: ML20098A429 (2) | |
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A D,GNTERDOR ENERGY Donald C. Shelton PERRY NUCLEAR POWER PLANT Mail Address:
SENIOR VICE PRESIDENT P.O. BOX 97 10 CENTER ROAD PERRY, OHIO 44081 PERRY, OHIO 44081 (216) 259-3737 September 22, 1995 PY-CEI/NRR-1982L United States Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555 Perry Nuclear Power Plant Docket No. 50-440 Inspection of Perry Nuclear Power Plant Core Shroud Gentlenent Generic Letter (GL) 94-03, "Intergranular Stress Corrosion Cracking of Core Shrouds in Boiling Vater Reactors" dated July 25, 1994, discussed a problem with cracking in Boiling Vater Reactor (BVR) Core Sbrouds and requested a response to specific items within the GL.
The response to the GL (PY-CEI/NRR-1847 L dated August 24, 1994), stated that an inspection of the core shroud would be performed in the fifth refueling outage (RF05). A commitment was also made to submit the RF05 inspection plan at least three months prior to the projected start of the outage.
At the time of the August 24, 1994 response to GL 94-03, the Boiling Vater Reactor Vessel and Internals Project (BVRVIP) was developing a report entitled "BVR Core Shroud Inspection and Evaluation Guidelines,"
GENE-523-113-0894. Revision 0 of this document was issued on September 2, 1994 and Revision 1 on April 21, 1995. Within GENE-523-113-0894, plants are classified into one of three separate groups, Category A, B or C, with Category A plants being those considered the least susceptible to intergranular stress corrosion cracking.
PNPP is a Category A plant, as identified within the documents. The NRC acknowledged and concurred in this categorization in Section 2.0 of their February 10, 1995 NRC Safety Evaluation for the Perry Nuclear Power Plant (PNPP) Unit 1 (TAC NO. M90107).
The GENE-523-113-0894 report recommends that Category A plants perform
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core shroud inspections during the first refueling outage after 8 on-line years.of operation has been serpassed (at which time they would then be considered a Category B plant).
Since PNPP will have approximately 6.4 1
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i PY-CEI/NRR-1982L-September 22, 1995 Page 2 of 2-on-line years by the planned shutdown date for RF05, there is no recommendation in the GENE document for performance of a core shroud
' inspection in RF05. This was recognized by the NRC in Section 2.0 of the February 10, 1995 Safety Evaluation, with the acknowledgment that a
' decision may be made "to reschedule the core shroud inspection date in i
accordance with-NRC staff approved BWRVIP guidelines".
Based on the above, no core shroud inspections vill be performed in RF05.
It is presently anticipated that a comprehensive accers and interference study vill be performed in RF05, in preparation for the core shroud inspections which will now be done in RF06 (presently scheduled for the Fall of 1997). The inspection plan for the RF06 shroud inspection vill be submitted at least three months prior to the projected start of the outage.
If you have questions or require additional information, please contact Mr. James D. Kloosterman, Manager - Regulatory Affairs at (216) 280-5833.
t' Very truly yours, e
Donal C. Shelton GGR sc i
cc: NRC Project Manager NRC Resident Inspectors Office i
NRC Region III 4
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