ML20217N448
| ML20217N448 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png |
| Issue date: | 03/10/1998 |
| From: | Thomas C NRC (Affiliation Not Assigned) |
| To: | Hehl C NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML20217N453 | List: |
| References | |
| TAC-MA0106, TAC-MA106, NUDOCS 9804090103 | |
| Download: ML20217N448 (1) | |
Text
}
f*"%
,.- Q1 t k
g UNITED STATES
- r
]
NUCLEAR REGULATORY COMMISSION Y
WAsNINGToN. D.C. 30806 4001 March 10, 1998
{
MEMORANDUM TO:
Charles W. Hohl, Director Division of Reactor Projects Region i FROM:
Cecil O. Thomas, Director
- geMO, a
C Project Directorate 6-3 Division of Reactor Projects-t/II i
Office of Nuclear Reactor Regulation l
SUBJECT:
PROPOSED TASK INTERFACE AGREEMENT (TIA) REGARDING l
STRUCTURAL INTEGRITY OF
- SKID MOUNTED" PIPE i
ASSOCIATED WITH EMERGENCY DIESEL GENERATORS AT VERMONT YANKEE NUCLEAR POWER STATION, (TAC MA0106)
By memorandum dated November 10, igg 7, you requested our assistance in reviewing the technical adequacy of the Vermont Yankee assessment and repair of structural defects in the
" skid mounted" piping for the emergency diesel generators. We have completed our review which is documented in the attached memorandum.
Based on our review, NRR has concluded that there are no immediate safety concems regarding i
the near-term operability of the EDGs. However, NRR has identified a number of concems in the i
structural analyses and metallurgical examinations performed by the licensee. Pending resolution of these concems, and further actions by the licensee to demonstrate long-term operability, NRR recommends augmented inspection of the EDGs during testing. We also recommend that Region I review the conclusions of our evaluation and the identified concoms j
regarding long-term operability of the EDGs with the licensee to ascertain the licensee's intentions regarding its corrective action.
Attachment:
Memorandum did. 2/27/g8 cc: L. Plisco, Ril G. Grant, Rill i
T. Gwynn, RIV K. Perkins, RIV-WCFO
,4+
9'
.=
y.yby 9804090103 980310 PDR ADOCK 05000271 P