ML20056C313
| ML20056C313 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 05/07/1993 |
| From: | J. J. Barton GENERAL PUBLIC UTILITIES CORP. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML20056C314 | List: |
| References | |
| C321-93-2142, NUDOCS 9305170314 | |
| Download: ML20056C313 (4) | |
Text
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i GPU Nuclear Corporation Nuclear
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Forked River New Jersey 08731-0388 609 971-4000 Writer's Direct Dial Number:
May 7,1993 C321-93-2142 U. S. Nuclear Regulatory Commission Att: Document Control Desk Washington, DC 20555
Dear Sir:
Subject:
Oyster Creek Nuclear Generating Station Docket No. 50-219 Inservice Inspection Program; 10 Year Update Response to Request for Additional Information By letter dated April 16,1992, GPU Nuclear submitted the Inservice Inspection Program for the third 10 year interval at the Oyster Creek Nuclear Generating Station.
The USNRC subsequently evaluated this submittal and by letter dated March 1,1993 requested additional information. Enclosure I and Attachments I through III of this letter contain the requested additional information.
If any additional information or assistance is required, please contact Mr. John Rogers of my staff at 609.971.4893.
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s Jahn J.
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' ice Pr s: ent and Director Oyster.eek JJB/JJR Attachments Enclosure cc:
Oyster Creek NRC Project Manager Administrator, Region I (w/o Enclosure or Attschments II and III)
Senior Resident Inspector (w/o Enclosure or Attachments II and III) j 1 A n 1 ty r-l g5170314930557
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3MF ADDCK 05000219
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G PDR GPU Nuclear Corporation is a subscary of General Pubuc Utht.es CorporaSon
ATTACHMENTI In the March 1,1993, NRC request for information,10 specific topics were addressed, lettered from A to J. This GPU Nuclear response maintains this lettering sequence for ease of review.
A.
The requested copies ofISI drawings containing specified information are included as Enclosure I to this submittal.
B.
The Oyster Creek Ten Year Inspection Schedule, correct as of the date of submittal, is included as Attachment II to this submittal. This interval covers the period from March 15,1992 to March 14, 2002.
C.
The inspection schedule for the augmented examinations performed for reasons other than IGSCC or NUREG-0619 have also been included in Attachment II to this submittal.
D.
The calibration standards being utilized during this interval have been listed in Attachment III to this submittal.
E.
The degree of compliance /acceptemce of the documents referenced by the USNRC in their submittal is summarized below:
(1)
Branch Technical Position MEB 3-1; GPU Nuclear is finalizing its position on this document. An additional letter will be submitted responding to this concern prior to the end of the third quarter 1993.
(2)
Reg Guide 1.150, Rev.1; GPU Nuclear will implement the ISI program for this interval within the guidance of the Reg Guide as modifie.d by the applicable utilities-recommended changes.
(3)
NUREG-0619; This rogram is not contained nor implemented within the context of the ISI Program. Specifics of the examinations relating to this NUREG have been contained in separate submittals.
(4)
NUREG-0803; The Scram Discharge Volume System is already part of the ISI program. Components have been identified on GPUN drawings 3E-225-A2-1000, sheets 2 and 3. The components scheduled for examination are specified in Attachment II to this submittal.
(5)
Generic Letter 88-01: The examination program for GL 88-01 is not contained nor implemented under the context of the ISI program.
Specifics of examinations relating to this GL have been contained in separate submittals.
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C321-93-2142 Page 2 F.
An intensive review of the lower head welds has been performed involving drawings, existing records, and interviews with experienced ISI inspectors.
Two circumferential and 14 meridional welds were identified. One of the circumferential and six of the meridional welds have been determined to be completely inaccessible. The remaining welds have the potential to undergo a partial examination, however, the percentage of examination possible has yet to be determined. GPU Nuclear has scheduled a visual field examination for our next refueling outage to determine the possibility of pardal examinations. Any additional information revealed by that examination will be transmitted to the USNRC within 90 days following the next outage.
G.
By this letter, GPUN withdraws relief request R2.
H.
By this letter, GPUN withdraws relief request R7 based on the clarification provided by the USNRC on ASME XI 1986 edition, Section IWA-1320(e).
1.
By this letter, GPUN withdraws relief request R8.
J.
By separate letter C321-93-2135, GPUN withdrew relief request R9 and submitted relief request Ril.
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ATTACHMENT II OYSTER CREEK NUCLEAR GENERATING STATION INSERVICE INSPECTION PROGRAM SCHEDULE Third Ten Year Interval
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