ML17157A574
| ML17157A574 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 02/20/1991 |
| From: | Raleigh J Office of Nuclear Reactor Regulation |
| To: | Keiser H PENNSYLVANIA POWER & LIGHT CO. |
| References | |
| TAC-77755, TAC-77756, NUDOCS 9102250215 | |
| Download: ML17157A574 (5) | |
Text
Docket Nos. 50-387 and 50-388 February 20, 199~
Mr. Harold W. Keiser Senior Vice President-Nuclear Pennsylvania Power and Light Company 2 North Ninth Street Al 1 entown, Pennsylvania 18101
Dear Mr. Keiser:
SUBJECT:
LOCA/FALSE LOCA TESTING, REQUEST FOR ADDITIONAL INFORMATION TECHNICAL SPECIFICATION CHAt<GE REVIEW FOR SUSQUEHANNA STEAM ELECTRIC STATION, UNITS 1 AND 2 (TAC NOS. 77755/77756)
Additional information is required in order to complete the staff's Technical Specification change review.
The request submittal does not have adequate description and information on the logic which is used to determine a real LOCA from a false LOCA signal.
The specifics of the requested information is in the Enclosure.
The additional information will be required by February 28, 1991 in order to complete Technical Specification review by April 30, 1991.
Sincerely,
Enclosure:
Request for Additional Information cc w/enclosure:
See next page
/s/
James J. Raleigh, Acting Project Manager Project Directorate I-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation DISTRIBUTION NRC 5 Local PDRs PDI-2 Reading SVarga EGr eenman MO'Brien(2)
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Docket Nos.
50-387 and 50-388 l
UNITEDSTATES 1
NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 February 20, 1991 Mr. Harold W. Keiser Senior Vice President-Nuclear Pennsylvania Power and Light Company 2 North Ninth Street Allentown, Pennsylvania 18101
Dear Mr. Keiser:
SUBJECT:
LOCA/FALSE LOCA TESTING%
REQUEST FOR ADDITIONAL INFORMATION TECHNICAL SPECIFICATION CHANGE REVIEW FOR SUSQUEHANNA STEAM ELECTRIC STATION, UNITS 1 AND 2 (TAC NOS. 77755/77756)
Additional information is required in order to complete the staff's Technical Specification change review.
The request submittal does not have adequate description and information on the logic which is used to determine a real LOCA from a false LOCA signal.
The specifics of the requested information is in the Enclosure.
The additional information will be required by February 28, 1991 in order to complete Technical Specification review by April 30, 1991.
Sincerely,
Enclosure:
Request for Additional Information C
cc w/enclosure:
See next page mes J. Raleigh, Acting Project Manager Project Directorate I-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation
Mr. Harold W. Keiser Pennsylvania Power
& Light Company Susquehanna Steam Electric Station Units 1
& 2 CC:
Jay Si lberg, Esq.
Shaw, Pittman, Potts
& Trowbridge 2300 N Street N.W.
Washington, D.C.
20037 Bryan A. Snapp, Esq.
Assistant Corporate Counsel Pennsylvania Power
& Light Company 2 North Ninth Street A 1 1entown, Pennsy1 vania 18101 Mr. J.
M. Kenny Licensing Group Supervisor Pennsylvania Power
& Light Company 2 North Ninth Street Allentown, Pennsylvania 18101 Mr. Scott Barber Senior Resident Inspector U. S. Nuclear Regulatory Commission P.O.
Box 35 Berwick, Pennsylvania 18603-0035 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. Cooperative, Inc.
212 Locust Street P.O.
Box 1266 Harrisburg, Pennsylvania 17108-1266 Mr. S.
B. Ungerer Joint Generation Projects Department Atlantic Electric P.O.
Box 1500 1199 Black Horse Pike Pleasantvi lie, New Jersey 08232 Regional Administrator, Region I
U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia,'ennsylvania 19406 Mr. Harold G. Stanley Superintendent of Plant Susquehanna Steam Electric Station Pennsylvania Power and Light Company 2 North Ninth Street Al 1 entown, Pennsylvania 18101 Mr. Herbert D. Woodeshick Special Office of the President Pennsylvania Power and Light Company 1009 Fowles Avenue Berwick, Pennsylvania 18603 Mr. Rober t G. Byram Vice President-Nuclear Operations Pennsylvania Power and Light Company 2 North Ninth Street Al1entown, Pennsylvania 18101
Request For Additional Tnformation Susquehanna Uni.ts 1 and 2
Explain the technical basis for the LOCA/F l interlocks.
a se LOCA Explain what distinguishes a real LOCA signal from a false LOCA signal.
Identify the FSAR sections that describe the LOCA/False LO interlocks.
a se LOCA Provide functional drawings that includes the logic to the interlocks and the text that explains the logic.
Provide the existing surveillance procedures with the markups that implement the 18 month testing interval.