ML19269C797
| ML19269C797 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 02/05/1979 |
| From: | Brown S VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| REF-PT21-80-224-000 061, 61, NUDOCS 7902120202 | |
| Download: ML19269C797 (2) | |
Text
'l February 5, 1979 Mr. James P. O'Reilly, Director Serial No. 061 Office of Inspection & Enforcement PSE&C/MBS/vml/ wang U. S. Nuclear Regulatory Conrnission Region II 101 Marietta Street, Suite 3100 Docket No. 50-339 Atlanta, Georgia 30303
Dear Sir:
On January 31, 1979, a report was made under the provisions of 10CFR50.55(e) concerning the lack of seismic supports and missile protection for the emergency diesel generator mufflers.
In accordance with the reporting requirements of 10CFR21, the following information is submitted:
A.
Name and address of reporting individual:
Mr. E. A. Baum, Executive Manager Licensing and Quality Assurance Virginia Electric and Power Company P. O. Box 26666,
Richnond, Virginia 23261 B.
Facility, activity, and/or component affected:
North Anna Power Station, Unit 2 Emergency Diesel Generator Mufflers C.
Name of firm constructing the facility or supplying the component, activity or service.
Stone and Webster Engineering Corporation P. O. Box 2325 Boston, fiassachusetts 02107 D.
Description of defect, deficiency, or failure to comply:
The present supports for the emergency diesel generator mufflers were not designed to withstand seismic effects.
The mufflers are also not missile protected. The mufflers form part of the exhaust system of the emergency diesel generator and, if damaged, could increase back-pressure to the extent of rendering the emergency diesel generators inoperable.
O D
1902120
d6, d*
f Mr. James P. O'Reilly, Director 2
E.
Date of determination of reportability:
January 31, 1979 F.
Similar components, activities, or services:
North Anna Unit 1 G.
Corrective action which has been, is being or will be taken, the individual responsible and the length of time to complete the action:
Investigation is proceeding to determine corrective action.
H.
Other information:
tione Any information not available at this time will be submitted in a follow-up letter as a 30-day report.
Should you require further information, please contact this office.
Very trul yours, Sam C. Br en, Jr.
Senior Vice President Power Station Engineering and Construction cc: Director, Office cf Inspection and Enforcement (3)