ML19257B108
| ML19257B108 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 12/31/1979 |
| From: | Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | Mattimoe J SACRAMENTO MUNICIPAL UTILITY DISTRICT |
| References | |
| NUDOCS 8001150262 | |
| Download: ML19257B108 (1) | |
Text
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UNITED STATES
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8 'f')"s,ff j NUCLEAR REGULATORY COMMISSION I
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8 1990 N. CALIFORNIA BOULEVARD h
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SulTE 202, WALNUT CREEK PLAZA
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WALNUT CREEK, CALIFORNIA 94596 December 31, 1979 Docket No. 50-312 Sacramento Municipal Utility District P. 0. Box 15830 Sacramento, California 95813 Attention: Mr. John J. Mattimoe Assistant General Manager Gentlemen:
The enclosed IE Information Notice No. 79-35 provides information on the control of maintenance and essential equipment.
Sincerely, m/L R. H. Engelken Director
Enclosure:
IE Information Notice No. 79-35 cc w/ enclosure.
R. J. Rodriguez, SMUD L. G. Schwieger, SMUD 1749 126 8001150 7.3 2.-
UNITED STATES SSIflS No.: 6870 NUCLEAR REGULATORY C0fNISSION Accessions No.:
0FFICE OF INSPECTION AND ENFORCEMENT 7910250510 WASHINGTON, D.C.
20555 December 31, 1979 IE Information Notice flo. 79-35 CONTROL OF MAINTENANCE AND ESSENTIAL EOUIPMENT Description of Circumstances:
Enclosed is a copy of a recent enforcement action aaainst Duquesne Light Company.
A cony of this action is being forwarded to all utilities with a power reactor operatino license or a construction permit. This is being done to apprise you of a serious condition which revealed an apparent weakness in facility control of maintenance and essential equipment.
You should review your existing procedures and control for independent verification of operability of redundant counterpart equipment when an essential component, subsystem, or system is determined inoperable. Operability is defined as follows:
A system, subsystem, train, comnonent or device shall be OPERABLE or have OPERABILITY when it is capable of nerforming its specified function (s).
Implicit in this definition shall be the assumption that all necessary attendant instrumentation, controls, normal and emeraency electrical power sources, coolina or seal water, lubrication or other auxiliary eouipment that are required for the system, subsystem, train, comoonent or device to perform its function (s) are also capable of performing their related support function (s).
If you have any questions reaardino this matter, please contact the Director of the NRC Regional Office in which your facilities are located. No written response to this IE Information Notice is required.
Enclosures:
1.
Letter to Duquesne Licht Company from V. Stello, Jr., dtd.12/5/79 2.
Recently Issued IE Information Notices DUPLICATE DOCUMENT Entire document previously entered Jnto stem under:
1749 127 xNo 7y/affc57as
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