ML17156A948
| ML17156A948 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 12/06/1988 |
| From: | Thadani M Office of Nuclear Reactor Regulation |
| To: | Keiser H PENNSYLVANIA POWER & LIGHT CO. |
| References | |
| IEB-88-004, IEB-88-4, TAC-69981, TAC-69982, NUDOCS 8812120074 | |
| Download: ML17156A948 (6) | |
Text
December 6,
1988
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Docket No. 50-388 Mr. Harold W. Keiser Senior Vice President-Nuclear Pennsylvania Power and Light Company 2 North Ninth Street Allentown, Pennsylvania 18101
Dear Mr. Keiser:
SUBJECT:
RESPONSE
TO NRC BULLETIN 88-04 (TAC NOS.
69981 AND 69982)
RE:
SUSqUEHANNA STEAM ELECTRIC STATION, UNITS 1 AND 2 On May 5, 1988, the NRC staff issued NRC Bulletin 88-04, "Potential Safety-Related Pump Loss."
The bulletin requested the evaluation of all safety-related pumps for 1) pump-to-pump interaction during miniflow operation that could result in dead-heading of one or more of the pumps and 2) the adequacy of the minimum flow bypass lines with respect to damage resulting from operation and testing in the minimum flow mode.
The bulletin also requested that within 60 days of receipt of the bulletin, licensees provide a
written response that (a) summarizes the problems and the systems
- affected, (b) identifies the short-term and long-term modifications to plant operating procedures or hardware that have been or are being implemented to ensure safe plant operations, (c) identifies an appropriate schedule for long-term resolution of this and/or other significant problems that are identified as a
result of this bulletin, and (d) provides justification for continued operation particularly with regard to General Design Criterion 35 of Appendix A to Title 10 of the Code of Federal Regulations (10 CFR Part 50),
"Emergency Core Cooling" and 10 CFR 50.46, "Acceptance Criteria for Emergency Core Cooling Systems for Light Water Nuclear Power Reactors."
Additionally, the staff requested that within 30 days of completion of the long-term resolution actions, that licensees provide a written response describing the actions taken.
By letter dated July 11, and October 31, 1988, you responded to Bulletin 88-04.
Your response adequately provided the information requested in a, b, c, and d
above.
Your response indicated that the minimum pump flows are adequate to prevent short-term
- damage, but the evaluation of the long-term effects is continuing at the vendors facilities.
We wish to remind you of the staff request that you provide us within 30 days of completion, the results of the long term evaluations and schedules of any resultant changes.
Sincerely,
/S/
Mohan C. Thadani, Project Manager Project Directorate I-2 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation cc:
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UNITEDSTATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 December 6,
1988 Docket No. 50-388 Mr. Harold W. Keiser Senior Vice President-Nuclear Pennsylvania Power and Light Company 2 North Ninth Street Al 1 entown, Pennsyl vani a 18101
Dear Mr. Keiser:
SUBJECT:
RESPONSE
TO NRC BULLETIN 88-04 (TAC NOS.
69981 AND 69982)
RE:
SUSQUEHANNA STEAM ELECTRIC STATION, UNITS 1
AND 2 On May 5, 1988, the NRC staff issued NRC Bulletin 88-04, "Potential Safety-Related Pump Loss."
The bulletin requested the evaluation of all safety-related pumps for 1) pump-to-pump interaction during miniflow operation that could result in dead-heading of one or more of the pumps and 2) the adequacy of the minimum flow bypass lines with respect to damage resulting from operation and testing in the minimum flow mode.
The bulletin also requested that within 60 days of receipt of the bulletin, licensees provide a
written response that (a) summarizes the problems and the systems
- affected, (b) identifies the short-term and long-term modifications to plant operating procedures or hardware that have been or are being implemented to ensure safe plant operations, (c) identifies an appropriate schedule for long-term resolution of this and/or other significant problems that are identified as a
result of this bulletin, and (d) provides justification for continued operation particularly with regard to General Design Criterion 35 of Appendix A to Title 10 of the Code of Federal Regulations (10 CFR Part 50),
"Emergency Core Cooling" and 10 CFR 50.46, "Acceptance Criteria for Emergency Core Cooling Systems for Light Water Nuclear Power Reactors."
Additionally, the staff requested that within 30 days of completion of the long-term resolution actions, that licensees provide a written response describing the actions taken.
By letter dated July 11, and October 31, 1988, you responded to Bulletin 88-04.
Your response adequately provided the information requested in a, b, c, and d
above.
Your response indicated that the minimum pump'lows are adequate to prevent short-term
- damage, but the evaluation of the long-term effects is continuing at the vendors facilities.
We wish to remind you of the staff request that you provide us within 30 days of completion, the results of the long term evaluations and schedules of any resultant changes.
Sincerely, cc:
See next page ohan C. Thadani, Project Manager Project Directorate I-2 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation
Mr. Harold W. Keiser Pennsylvania Power 5 Light Company Susquehanna Steam Electric Station Units I 5 2
CC:
Jay Silberg, Esq.
Shaw, Pittman, Potts 5 Trowbridge 2300 N Street N.W.
Washington, D.C.
20037 Bryan A. Snapp, Esq.
Assistant Corporate Counsel Pennsylvania Power 5 Light Company 2 North Ninth Street Al 1 entown, Pennsyl vani a 18101 Mr. E. A. Heckman Licensing Group Supervisor Pennsylvania Power 5 Light Company 2 North Ninth Street Allentown, Pennsylvania 1810l Mr. F. I. Young Resident Inspector P.O.
Box 52 Shickshinny, Pennsylvania 18655 Mr. R. J.
Benich Services Proiect Manager General Electric Company 1000 First Avenue King of Prussia, Pennsylvania 19406 Mr. Thomas M. Gerusky, Director Bureau of Radiation Protection Resources Commonwealth of Pennsylvania P. 0.
Box 2063 Harrisburg, Pennsylvania 17120 Mr. Jesse C. Tilton, III Allegheny Elec. Coorperative, Inc.
212 Locust Street P.O.
Box 1266 Harrisburg, Pennsylvania 17108-1266 Mr.
W.
H. Hirst, Manager Joint Generation Projects Department Atlantic Electric P.O.
Box 1500 1199 Black Horse Pike Pleasantville, New Jersey 08232 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, Pennsylvania 19406
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