ML20064E527
| ML20064E527 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek, Crane |
| Issue date: | 02/15/1994 |
| From: | Keaten R GENERAL PUBLIC UTILITIES CORP. |
| To: | Norrholm L Office of Nuclear Reactor Regulation |
| References | |
| C311-94-2025, NUDOCS 9403140335 | |
| Download: ML20064E527 (3) | |
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GPU Nuclear Corporation h
arsi pan, Ne Jer ey07054 201-316-7000 TELEX 136-482 Wnter's Direct Dial Number.
February 15, 1994 C311-94-202.5 C321-94-2021 5000-94-0008 Mr. Leif J. Norrholm Chief, Vendor Inspection Branch Division of Reactor Inspection and Licensee Performance Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, DC 20555 Gentlemen:
Subject:
Oyster Creek Nuclear Generating Station (0CNGS)
Docket No. 50-219 Facility Operating License No. DPR-16 Three Mile Island Nuclear Station, Unit 1 (TMI-1)
Docket No. 50-289 Facility Operating License No. DPR-50 Disposition of Error Notices Received from Boeing Computer Services 1
Reference:
(1) NRC Letter dated December 16, 1993, j
" Disposition of Error Notices Received from Boeing Computer Services."
)
The Reference 1 letter requested that GPU Nuclear provide a summary of evaluations and responses to the error notices received from Boeing Computer Services (BCS). A listing of BCS error notices entitled " Nuclear Error Notice Log Since Commercial Contract Termination (December,1990)" was provided.
GPU Nuclear has not used BCS since 1984. Use of BCS by GPU Nuclear was limited to the Engineering Mechanics group.
Review of all error notices, including those from BCS, is conducted at the time of receipt by all engineers in Engineering Mechanics for assessment of impact on any current or past work.
None of the subject error notices were found to affect any current or past work and had no safety significance for GPU Nuclear applications.
Based upon the Reference 1 request, Engineering Mechanics conducted an additional review of the subject error nnticas.
The results of this latest review are provided in Attachment I.
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GPU Nuclear Corporation is a subsidiary of General Pubhc Utihtios Corporation
'C311-94-2025' C321-94-2021 Page 2 If you have any questions or comments on this submittal, please cont ct Mr.
Michael Laggart, Manager, Corporate Nuclear Licensing at (201) 316-7968.
Very truly yours,
/h(/ ' ' <4 R. W. Keaten Vice President and Director Technical Functions cc: Document Control Desk Administrator, Reginn 1 Oyster Creek Senior Resident Inspector Oyster Creek NRC Project Manager TMI Senior Resident Inspector THI NRC Project Manager i
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J ATTACHMENT I i
NUPIPE (Quadrex Error Notices)
GPU Nuclear has never used NUPIPE.
E (SAS Error Notices)
GPU Nuclear has not used ANSYS through Boeing Computer Services since 1984. The latest version of the program used by GPU Nuclear was, therefore, version 4.0. The 53 error notices applicable to ANSYS can be characterized as follows:
- Do not affect anal
'dts (e.g. abort, enter erdless loo;
= 43
- Apply only to versions not used by GPU Nuclear
=6
- Remaining
=4 These 4 error notices (SAS 91-31,91-33,92-31 and 92-44) involve conditions and elements which have limited use for Engineering Mechanics. None of these error notices were found to affect any current gr cast work anj ' ' no safety slanificance for GPU Nuclear anotications.
GTSTRUD_l, (GT Error Notices)
GPU Nuclear has not used GTSTRUDL through Bceing Computer Services since 1984. The latest version of the program used by GPU Nuclear was, therefore, version 85.05. The 55 error notices applicable to GTSTRUDL can be characterized as follows:
- Do not affect analysis results (e.g. abort, enter endless loops)
= 28
- Apply only to versions not used by GPU Nuclear
=7
- Remaining
= 20 These 20 error notices (GT 91.34, 91.43, 91.48, 92.02, 92.05, 92.08, 92.11, 92.12, 92.15, 92.17, 92.19, 92.20,93.01,93.02,93.04,93.06,93.09,93.10,93.12 and 93.13) involve a large range of potential errors and are difficult to genere ze. However these 20 notices, as are all error notices received from any n
computer service or any other souce, were reviewed by all engineers in Engineering Mechanics at the time of receipt to assess the error notice's impact on any current or past work. None of these error notices were fot nd to affect any current or cast work and had no safety sionificance for GPU Nuclear apolications.
Note: All error notice assessments are further supplemented by an independent review for reasonableness of results conducted for every GPU Nuclear calculation.