PLA-1987, Updated Interim Deficiency Rept Re Scram Discharge Vol Vent & Drain Valve Waterhammer.Testing & Subsequent Analysis Will Be Completed in Mar 1984.Util Will Submit Final Rept by Apr 1984
| ML20083F156 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 12/14/1983 |
| From: | Curtis N PENNSYLVANIA POWER & LIGHT CO. |
| To: | Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| PLA-1987, NUDOCS 8312300179 | |
| Download: ML20083F156 (3) | |
Text
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PP&L Pennsylvania Power & Light Company Two North Ninth Street
- Allentown, PA 18101
- 215 / 770 5151 Norman W. Curtis Vice President-Engineering & Construction-Nuclear 215/770-7501 December 14, 1983 Dr. Thomas'E. Murley Regional Administrator Region I
.U.S. Nuclear Regulatory Commission 631 Park-Avenue l King of Prussia, PA 19406~
SUSQUEHANNA STEAM ELECTRIC STATION UPDATED INTERIM REPORT OF A-DEFICIENCY INVOLVING SDV VENT & DRAIN VALVE WATERHAMMER ERs 100450/100508 FILE 821-10 PLA-1987--
Reference:
PLA-1762 dated July 28, 1983
Dear Dr. Murley:
The referenced PLA-1762 provided the commission with an interim report on the subject deficiency and indicated that PP&L was going to conduct testing and analysis to determine the load and its impact.
r This letter serves to provide an updated interim report and identifies the actions PP&L has taken to date.
Testing to collect data to determine waterhammer loads on the SDV began when the Unit 1/ Unit 2 tie-in outage started. At present, testing is expected to be performed as follows:
- A hot functional test (TP-155-002) on Unit 1 at the start of the outage (complete).
- A cold test (TP-155-003) on Unit 1 after the hot test.
- A cold test (in preparation) on Unit 2 following the Unit I cold test.
The hot and cold tests are being performed on Unit 1 in order to determine what effects temperature will have on the waterhammer loads. These results can then be correlated with the Unit 2 cold tests so that an accurate analysis of the waterhammer loads on Unit 2 can be made.
Based on current schedules it is anticipated that the testing and subsequent analysis will be completed in March, 1984. PP&L therefo,e expects to submit the final report on this condition, including any additional corrective action which may be necessary, in April,1984.
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SSES PLA-1987 ER.100450/100508 File 821-10
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~ We trust the Comission will find this report to be-satisfactory.
Very truly yours,.
/
N. W..Curtis Vice President-Engineering & Construction-Nuclear js/lt134a:nf i
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~ Decembe'r 14, 1983 Page 3 SSES PLA-1987 ER 100450/100508 File 821-10 Copy to:
Mr. Richard C.-DeYoung (15)
Director-0ffice of Inspection & Enforcement U.S. Nuclear Regulatory Commission Washington, D.C.-20555
- Mr. G. Mcdonald, Director Office of Management Information & Program Control U.S. Nuclear Regulatory Commission Washington,~D.C. 20555 Mr. Gary.Rhoads
'U.S. Nuclear Regulatory Commission P.O. Box 52 Shickshinny, PA 18655 Records Center Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 Atlanta, GA ~30339