ML17157A735
| ML17157A735 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 06/27/1991 |
| From: | Raleigh J Office of Nuclear Reactor Regulation |
| To: | Keiser H PENNSYLVANIA POWER & LIGHT CO. |
| References | |
| GL-89-10, TAC-77798, TAC-77799, NUDOCS 9107020411 | |
| Download: ML17157A735 (8) | |
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Docket Nos.
50-387 and 50-388 UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555 June 27, 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:
REQUEST FOR ADDITIONAL INFORMATION RE:
GENERIC LETTER (GL) 89-10, SUPPLEMENT 3:
"CONSIDERATION OF THE RESULTS OF NRC-SPONSORED TESTS OF MOTOR-OPERATED VALVES," SUSQUEHANNA STEAM ELECTRIC STATION, UNITS 1
AND 2 (TAC NOS.
77798 AND 77799)
By letter dated March 14, 1991, you submitted a response to the 120-day, 10 CFR 50.54(f), reporting requirements of GL 89-10, Supplement 3, for Susquehanna, Units 1
and 2.
After reviewing your response, the staff has concluded that the additional information identified in the enclosure is necessary to make a
safety determination regarding the subject motor-operated valves.
Response
to the enclosed Request for Additional Information (RAI) is requested within 30 days from receipt of this letter.
This request is covered by Office of Management and Budget Clearance Number 3150-0011, which expires December 31, 1991.
The estimated average burden hours are 80 person-hours per licensee
- response, including searching data
- sources, gathering and analyzing the data, performing data evaluations, and preparing the required letters.
(These estimated average burden hours pertain only to the identified response-related matters and do not include the time for actual implementation of the requested action.).
Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to the Information and Records Nanagement Branch, Division of Information Ilanagement, U.S. Nuclear Regulatory Commission Washington, D.C., 20555, and to the Paperwork Reduction Project (3150-0011, Office of Nanagement and Budget, Washington, D.C., 20503.
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Nr. Harold M. Keiser June 27, 1991 Should you have any questions regarding this RAI, please contact me at (301) 492-1447.
Sincerely,
Enclosure:
Request for Additional Information James J. Raleigh, Acting Project Hanager Project Directorate 1-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation cc w/enclosure:
See next page
Mr. Harold W. Keiser Pennsylvania Power
& Light Company Susquehanna Steam Electric Station Units 1
& 2 CC:
Jay Silberg, 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 Allentown, Pennsylvania 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.
O.
Box 2063 Harri sburg, 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 Pleasantville, New Jersey 08232 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, Pennsylvania 19406 Mr. Harold G. Stanley Super intendent of Plant Susquehanna Steam Electric Station Pennsylvania Power and Light Company 2 North Ninth Street Al1 entown, Pennsy1 vani a 18101 Mr. Herbert D. Woodeshick Special Office of the President Pennsylvania Power and Light Company 1009 Fowles Avenue Berwick, Pennsylvania 18603 Mr. Robert G. Byram Vice President-Nuclear Operations Pennsylvania Power and Light Company 2 North Ninth Street A 1 lentown, Pennsy 1 vani a 18101
ENCLOSURE REQUEST FOR ADDITIONAL INFORMATION RE:
SUPPLEMENT 3
TO GENERIC LETTER 89-10, CONSIDERATION OF THE RESULTS OF NRC-SPONSORED TESTS OF MOTOR-OPERATED VALVES SUSQUEHANNA UNITS 1 AND 2 1.
Provide valve, actuator and motor type/size, design differential pressure, current torque switch settings, and information necessary to confirm motor adequacy for each MOV within the scope of Supplement 3 to GL 89-10.
2.
Identify any modifications (e.g.,
torque switch setting adjustments, gearing changes, or motor/actuator replacement) for each MOV within the scope of Supplement 3 to GL 89-10 since June 1990 or planned for the future.
3.
Has the leakage rate for an MOV at the 974 closed position been determined?
Does the leakage rate meet the limits of Appendix J and the ASME Code?
4.
Provide justification for the use of a valve factor of 0.3 for Anchor Darling gate valves.
5.
How have you addressed the rate of loading phenomenon in MOV sizing and torque switch settings?
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Mr. Harold W. Keiser June 27, 1991 Should you have any questions regarding this RAI, please contact me at (301) 492-1422.
S in cere ly,
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
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