ML20035D502
| ML20035D502 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 04/09/1993 |
| From: | Hutchinson C ENTERGY OPERATIONS, INC. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| GNRO-93-00035, GNRO-93-35, NUDOCS 9304130286 | |
| Download: ML20035D502 (5) | |
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April 9,1993 l
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U.S. Nuclear Regulatory Commission Mail Station P1-137 Washington, D.C.
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Attention:
Document Control Desk
Subject:
Grand Gulf Nuclear Station
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Unit 1 l
Docket No. 50-416 License No. NPF-29 l
Quarterly Status Report for Period Ending March 31, 1992 - Degraded Core Accident Hydrogen Control Program GNRO-93/00035 P
Gentlemen The Grand Gulf Nuclear Station (GGNS) Unit 1 Operating License i
requires that Entergy Operations, Inc. submit quarterly j
reports on the status of the " Degraded Core Accident Hydrogen i
Control Program."
In response to that requirement, Entergy Operations, Inc. submits the attached report covering the period January 1, 1993 through March 31, 1993.
Should you have any questions concerning this report, please contact Jewel Summers at (601) 437-2149.
Yours truly, s
C. R. Hutchinson Vice President, Operations GGNS JS/mtc attachment Quarterly Status Report for Period Ending March 31, 1993 cc:
(See Next Page)
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April 9, 1993 t
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Page 2 of 3 4
i cc:
Mr. R. H. Bernhard (w/a)
Mr. D. C. Hintz (w/a)
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Mr. R. B. McGehee (w/a) l Mr. N. S. Reynolds (w/a)
Mr. H. L. Thomas (w/o) j Mr. Stewart D. Ebneter (w/a) i Regional Administrator j
l U.S. Nuclear Regulatory Commission j
i Region II 101 Marietta St.,
N.W.,
Suite 2900 Atlanta, Georgia 30323 j
Mr.
P. W.
O'Connor, Project Manager (w/2)
J Office of Nuclear Reactor Regulation l
U.S. Nuclear Regulatory Commission Mail Stop 13H3 Washington, D.C.
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Docket No. 50-416 Entergy Operations, Inc.
i Quarterly Status Report for Period Ending March 31, 1993 i
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G9303162
i Attachment to GNRO-93 /00035
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Quarterly Status Report for Period Ending March 31, 1993
" Degraded Core Accident Hydrogen Control Program" 1.0 Introduction This quarterly status report is submitted to comply with the Grand Gulf Nuclear Station (GGNS) Unit 1 Operating License.
This requirement specifies that Entergy Operations, Inc. should provide quarterly reports l
outlining the status of the ongoing research program to address degraded core hydrogen control requirements.
This report covers the first calendar quarter of 1993, ending March 31, 1993.
This report includes brief summaries of submittals made by Entergy Operations this quarter, along with summaries of meetings between the NRC Staff and Entergy Operations.
Entergy Operations is participating in the Hydrogen Control Owners Group (HCOG) which is conducting generic research and analyses to resolve the degraded core hydrogen control issue.
Since the work completed by HCOG parallels Entergy Operations' program to resolve this issue, this report also includes summaries of meetings between the HCOG and the NRC.
The meetings summarized in this report do not reflect a formal ECOG position with respect to any issue, but represent Entergy Operations' interpretation of those meetings.
2.0 Smumary of Enterov Operations, Inc. Submittals Entergy Operations made no submittals to the NRC on the Degraded Core Accident Hydrogen Control Program during this calendar quarter of 1993.
3.0 Smumary of HCOG and NRC Meetings No formal meetings were held between Entergy Operations or HCOG and the NRC during this quarter.
l 4.0 Hydrocen Control Program Status l
l The summaries and status of the Hydrogen Control Program ac stated herein do not reflect the HCOG position with respect to any program, but represent Entergy Operations' interpretation of these programs.
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Attcchment to GNRO-93 /00035 4
The generic research and generic analyses conducted by HCOG to resolve the degraded core hydrogen control issue are complete.
In accordance with this, the NRC issued a i
Safety Evaluation Report (SER) on the generic Hydrogen Control Program on August 10, 1990.
The SER documented the NRC's review of the generic Hydrogen Control Program and delineated which issues were considered closed by the j
NRC and which required additional action by the HCOG l
and/or the individual utilities.
5.0 Status of Siquificant Issues No change.
6.0 Planned Activities for the Second Quarter 1993 Entergy Operations, Inc. plans to submit a proposed j
change to the GGNS Operating License (PCOL) to reflect incorporation of the Generic Hydrogen Ignition System (HIS) Technical Specifications.
The proposed change will relax previous restrictions on ensuring operability of igniters in enclosed areas and igniters located in opr2 areas adjacent to inoperable igniters; redefine the Hydrogen Ignition System as operable based solely on subsystem status; and remove component lists from the GGNS HIS Technical Specifications in accordance with guidance provided in Generic Letter 91-08.
The Generic Hydrogen Ignition System Technical Specifications (Appendix A to the Staff's Generic Mark III Containment Hydrogen Control Safety Evaluation Report) have been confirmed applicable and valid for the GGNS configuration.
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