ML19289C367
| ML19289C367 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 01/08/1979 |
| From: | Opeka J NORTHEAST UTILITIES |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| MP-1-1073, NUDOCS 7901120098 | |
| Download: ML19289C367 (1) | |
Text
IH)lflHiin!!T tlTII.1TI!!!i d,hhbh, I
7~~
=
=== =:=:
t January 8-1979 MP-1-1073 Mr. Boyce H. Grier Director, Region I Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406
Reference:
Provisional License Number DPR-21 Docket No. 50-245 Reportable Occurrence R0-79-1/1P
Dear Mr. Grier:
This letter is forwarded to provide prompt notification of Reportable Occurrence R0-79-1/lP as required by the Millstone Unit 1 Technical Specifications.
On January 6,1979, during a drywell inspection, water leakage in the vicinity of the Reactor' Water Cleanup System return line, was observed. At 1330 hours0.0154 days <br />0.369 hours <br />0.0022 weeks <br />5.06065e-4 months <br />, the same day, after further investigation it was determined that the leakage was attributable to a crack in the heat affected zone of a weld in the Cleanup System return j
line.
The leak was in the section of line between the inner isolation valve and the drywell penetration.
The piping in question is eight inch, stainless steel 304, schedule r.ighty.
At this time a repair is in progress to ullow plant operation to commence. A sample of the piping has been taken.
Further results will be in the follow up 14 day report.
Yours truly,
{j b
. F. Opeka Station Superintendent
. Millstone i;uclear Power Station JF0/PJP/llm cc:
Director, Office of Management Information and Program Control, Washington, D.C.
(2) 0 0
6 79011200Th g\\\\
+