ML20054E449
| ML20054E449 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 06/02/1982 |
| From: | Russell L BALTIMORE GAS & ELECTRIC CO. |
| To: | Haynes R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| RO-82-25(U-2), RO-82-27(U-1), NUDOCS 8206110221 | |
| Download: ML20054E449 (1) | |
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DE3IGNATED ORIGINAL Csrtified By
[18 i
B ALTIMORE G AS AND ELECTRIC COMPANY P.O. B O X 1475 D ALTIMOR E. M A R YL AN D 21203 NUCLEAR POWER DEPARTMENT CALVERT CLIFF $ NUCLEAR PO WER PL ANT LUSBY, M A RYL AND 20657 June 2,1982 Mr. Ronald C. Haynes, Director Docket No. 50-317; 50-318 Office of Inspection and Enforcement License No. DPR-53; DPR-69 U. S. Nuclear Regulatory Commisssion Region is 631 Park Avenue King of Prussia, PA.19t 06 4
SUBJECT:
LER 82-27 (U-1); LER 82-25 (U-2)
Dear Mr. Haynes This letter is to confirm our verbal notification to your Mr. Ralph Architzel of the discovery that all three diesel generators were simultaneously inoperable.
At 0623 on 6-2-82 with Unit 1 in Mode 5 and Unit 2 in Mode 1 and Service Transformer P-13000-2 removed from service for preventitive maintenance, Emergency Diesel Generator 21 tripped on loss of field while loaded after a test start and was declared inoperable. Emergency Diesel Generator 12 was then started and loaded and it also tripped on loss of field at 0705 and was also declared inoperable. Since Emergency Diesel Generator 11 was out of service for maintenance, only the offsite power sources remained operable (T.S. 3.8.1.2 for Unit 1; T.S. 3.3.1.1 and 3.0.5 for Uriit 2). Emergency Diesel Generator 12 was restarted and declared operable at 0735. Emergency Diesel Generator 21 was tested and declared operable at 0800, thus terminating this event.
A complete description of this event and any further corrective action will be l
addressed in a follow-up report.
Very truly yoitrs, 9
5 M'(
i L
L. B. Russell l
Plant Superintendent l
LBR:fid cc:
J. A. Tiernan R. M. Douglass i
Director, Office of Management R. E. Architzel Information & Program Control L. B. Russell G. S. Pavis 8206110221 820602 DR ADOCK 05000 gj{
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