ML20116B730
| ML20116B730 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 04/15/1985 |
| From: | Hufham J TENNESSEE VALLEY AUTHORITY |
| To: | Grace J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| NUDOCS 8504260089 | |
| Download: ML20116B730 (2) | |
Text
.
TENNESSEE VALLEY AUTHORITY
~
CH ATTANOOGA, TENNESSEE 37401 400 Chestnut Street Tower II 35 Afill7 AIO : 22 BLRD-50-438/83-22 U.S. Nuclear Regulatory Commission Region II Attn:
Dr. J. Nelson Grace, Regional Administrator 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323
Dear Dr. Grace:
BELLEFWTE NUCLEAR PLANI UNIT 1 - INCORRECT TIERMAL DATA IN PROBLEM N4-1RK-A FROM PROGRAM "EZ" - BLRD-50-438/83 FIFTH INTERIM REPORT The subject deficiency was initially reported to NRC-0IE Inspector Linda Watson on February 16, 1983 in accordance with 10 TR 50.55(e) as NCR BLN B 8303 This was f ollowed by our interim reports dated March 16, 1983 and April 17, June 21, and December 20, 1984.
Enclosed is our fifth interim report. We expect to sutznit our next report on or about August 20, 1985.
If you have any questions concerning this matter, please get in touch with R. H. Shell at FTS 858-2688.
Very truly yours, TENNESSEE VALLEY AUTHORITY 4
h J
W.
ham 4 Manager i naing andT Regulations Enclosure L
cc:
Mr. James Taylor, Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Ccanmission Washington, D.C.
20555 Records Center (Enclosure)
Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 Atlanta, Georgia 30339 8504260009 850415 gDR ADOCK 05000438 e071cla' Copy PDR r E7 An Equal Opportunity Employer
ENCLOSURE BELLEFCNTE NUCLEAR PLANT UNIT 1 INCORRECT TIERMAL DATA IN PROBLEM N4-1RK-A FROM PROGRAM "EZ" NCR BLN GB 8303 BLRD-50-438A 3-22 10 TR 50.55(e)
FIFTH INTERIM REPORT Description of Deficiency The essential air compressor system has not been qualified for the thermal loading condition evaluated in analysis problem N4-1RK-A.
In reviewing the issued analysis problem for design change request (DCR) 2372, the result's could not be verified due to the input of unverified thermal data. This was a result of using an unverified program, "EZ,"
and a lack of verification procedures for the."EZ" program in generating the input data.
Interim Progress TVA has not yet completed the revisions to affected air compressor syste support designs referenced in our fourth interim report on this deficiency. The next report will be submitted when the design revisions are complete.
1 N
D
-