ML20083E076
| ML20083E076 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 12/20/1983 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8312280440 | |
| Download: ML20083E076 (2) | |
Text
e~
.c TENNESSEE VALLEY AUTHORITY CH ATTANOOGA. TENNESSEE 374o1 s
400 Chestnut Street Tower II s
g11 AN [9e ber 20, 1983 BLRD-50-438/83-06 BLRD-50-439/83-03 U.S. Nuclear Regulatory Conunission Region II Attn:
Mr. James P. O'Reilly, Regional Administrator 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30303
Dear Mr. O'Reilly:
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 - DEFICIENT HANDLING OF DESIGN CHANGE REPORTS - BLRD-50-438/83-06, BLRD-50-439/83 FINAL REPORT The subject deficiency was initially reported to NRC-0IE Inspector D. M. Verrelli on December 21, 1982 in accordance with 10 CFR 50.55(e) as NCR BLN BLP 8234. This was followed by our interim reports dated January 18 and July 1,1983 Enclosed is our final report.
If you have any questions, please get in touch with R. H. Shell at FTS 858-2688.
Very truly yours, TENNESSEE VALLEY AUTHORITY 3%.1%LL L. M. Mills, Manager Nuclear Licensing Enclosure cc:
Mr. Richard C. DeYoung, Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C.
20555 Records Center (Enclosure)
Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 Atlanta, Georgia 30339 8312280440 831220 gDRADOCK05000 g, ppg cry 7 ZEE 7 1983-TVA SOTH ANNIVERSARY i
An Equal Opportunity Employer
ENCLOSURE
,a BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 DEFICIENT HANDLING OF DESIGN CHANGE REPORTS e
BLRD-50-438/83-06, BLRD-50-439/83-03 NCR BLN BLP 8234 10 CFR 50.55(e)
FINAL REPORT Description of Deficiency Design change reports are the method whereby changes to mechanical piping systems are identified to personnel responsible for the piping analysis in order that the analysis can be revised to reflert these changes. The handling of design change reports has been determined to be deficient.
During the INPO self-initiated evaluation, it was determined that two design change reports (Nos.1061 and 1062) did not have associated design change impact reports nor was a file copy of either available.
Insufficient information was supplied in the design change report log to enable tracing of these reports. In addition, it was determined that there are different understandings within the TVA's Division of Engineering Design, Bellefonte Design Project (BLP), Mechanical Design Project concerning the criteria for issuing a design change report.
Design change reports were established within BLP to identify changes to piping systems which require evaluation to determine if design reanalysis is necessary. Therefore, this deficiency is applicable only to the Bellefonte Nuclear Plant.
Safety Implications The failure to insure that design change reports are written whenever necessary, or that they are properly disposed of once written, could result in changes to safety-related piping not being incorporated into the piping analyses.
i Corrective Action BLP EP-44.76 R3 has been revised to clarify (a) the responsibility and methods for documenting design change reports, and (b) the criteria for issuing a design change report. These changes provide the necessary procedural controls to prevent recurrence of this deficiency.
All design change reports written before July 12, 1983, have been identified and their status evaluated and documented to ensure adequate traceability and proper disposition. This review involved approximately 3000 design change reports. Reports produced since July 12, 1983, have been processed in accordance with the more stringent procedural controls.
n-
.w+
i:
.u.-