ML20090D630
| ML20090D630 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 03/02/1992 |
| From: | Fiedler P GENERAL PUBLIC UTILITIES CORP. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| C321-92-2075, NUDOCS 9203060361 | |
| Download: ML20090D630 (3) | |
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GPU Nuclear Corporation U Nuclear 8
Parsippany, New Jersey o7054 201 316-7000 TELEX.36 482 Wnter's Direct Dial Number March 2, 1992 C321-92-2075 U.S. Nuclear Regulatory Commission Attentinn: Document Control Desk Washing m, D.C.
20555 Gentlemen:
Subject:
Oyster Creek Nuclear Generating Station Docket No. 50-219 Plant-Referenced Simulator Update Ref: GPUN Letter C321-91-2322, " Request for Exemption from 10 CFR 55.45(b)(2)(iii) & (iv)", P.B. Fiedler to NRC Document Control Desk, dated December 6, 1991.
As a_ followup to our exemption request referenced above and a meeting I'91d en
. January 28, 1992, this letter provides an update on the progress we have made towards obtaining a certifiable plant referenced simulator for Gyster Creek.
Due to continuing' difficulties encountered by Westinghouse in modeling Oyster Creek's nuclear steam supply system (NSSS), it became necessary to pursue the purchase and development of an alternate proven NSSS model. After considerable effort, a letter of intent.was signed by Westinghouse and Exitech on February 27, 1992 for Exitech-to provide an alternate NSSS-model.
Exitech
'is now actively working on the alternate model. Based on our internal assessment and Exitech's guarantee, we are confident that the alternate model can be certified to meet the requirements of 10 CFR 55.45 and ANSI /ANS 3.5
-1985. This is intended _to be a contingency plan; the first model to work-successfully will be used.
L In addition, Westinghouse has added personnel to:the team working on their-NSSS model. "This was don 3-to comnlemtnt the formal retention of General =
Physics to help identify; what the' problems'are and how to.t esolve them.
Tne specific exemptions we requested in our letter referenced above are still Evalid. We are requesting an exemption allowing us until the end of December 1592, to certify the simulator. We are alto requesting an exention allowing
!ur to administer operating tests on the-Nine Mile Point. Unit 1 (NMP-1).
si:aulator until the new simulator's certification is complete.
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P C321-92-2075 Page 2 of 2
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Attached is a projected training schedule for the next two years identifying the dates when a simulator would be needed. As shown in the schedule, we are proposing to conduct the 199'.' annual operating test over a ten week period in August through October, 1992. Accordingly, we have made arrangements to
'~' duct this test at the NMP-1 simulator.
In addition, our_ operators and STAS are scheduled to participate in the factory acceptance testing (FAT) of the plant referenced simulator in Monroeville, Pennsylvania as committed in our exemption request.
Each operating crew and STA is scheduled to spend a week at the simulator; four days in FAT and one day being evaluated.
This evaluation will not be part of the operating test, but will be done to emphasize procedure utilization, command and control, teamwork and communication.
As discussed at the meeting on January 28, 1992, we would prefer a simulator using the Westinghouse NSSS model rather than the alternate model. We will continue to work closely with Westinghouse to help them resolve the modeling difficulties.
If there are any further questions, please call Mr. Michael Heller, Licensing Engineer, at (609) 971-4680.
Sincerely, C. k.
M c.W P.B. Fiedler
\\'g3 Vice President and Director
- n Nuclear Assurance l
l Attachment cc:
NRC Region 1 Administrator NRC Senior Resident Inspector A. 'Dromet.i l-t L
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ATTACHMENT PROJECTED SIMULATOR TRAINING SCHEDULE Data A.qtiVitY Feb 1992 SR0 Certification (3 weeks)
July 1992 INP0 E&A Simulator Evaluation Aug - Oct 1992 Annual Operating Test (10 weeks)
Nov 1992 SR0 Certification (3 weeks)
Sept 1993 SR0 Upgrade (Tentative)
Oct 1993 Annual Operating Test Begins 1-l l
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