ML19340C299
| ML19340C299 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 11/07/1980 |
| From: | Russell L BALTIMORE GAS & ELECTRIC CO. |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| 80-49, NUDOCS 8011140462 | |
| Download: ML19340C299 (2) | |
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4 B ALTIMORE G AS AND ELE'CTRIC COMPANY P.O. B O X 1475 B A LTIM O R E. M A R Y L A N D 212c3 4-1 NUCLE AR POWER DEPARTMENT I
cALVERT CLIFFS NQcLEAR PC eER PL AN T LUSOY. MARYLAND M657 4
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Office of Inspection & Inforce=en U.S. Nuclear Regulate-/ Oc :ission
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~he 500 i~/ black bus was restored to service a 16LO en 11/6/30 following its re=cral frc service for routine maintenance. Ecvever, through eversight, 21 L E'l bus was not realigned Oc the black bus at that ti=e.
Therefore, 21 h ?~/ bus centinued to be sur.:. lied bv the 500 ?~/ red bus which was also supplying neraal pcver te 2L h y'/ bus. Mistakenly assuring that two inde-
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o operater discentinued periodic de=enstratien cf the operability of the re-
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At 05LT on 11/7/50, the oversight was disecverui and the cperability cf both 12 and 21 diesel gen-erators and the 500 F hus were inmediately verified.
'~herefore, it may be assured that all A. ;. 1,ources were operable throughout this e rent.
A descriptien of the corrective e.0:icns taken to.trevent recurrence of this a v e.* ". _* _'.' 'c e c -.*. a d..a A '
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