05000317/LER-1980-006-03, /03L-0:on 800103,while Performing Routine Surveillance Test,Control Element Assembly 60 Was Dropped Into Core.Cause Unknown.All Parameters Found Normal & No Problems Encountered.No Further Action Anticipated

/03L-0:on 800103,while Performing Routine Surveillance Test,Control Element Assembly 60 Was Dropped Into Core.Cause Unknown.All Parameters Found Normal & No Problems Encountered.No Further Action Anticipated

ML19260D654
Person / Time
Site:	Calvert Cliffs
Issue date:	01/31/1980
From:	Bauer E, Davis S BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19260D646	List: 05000317/LER-1980-006, Forwards LER 80-006/03L-0 05000317/LER-1980-006-03, /03L-0:on 800103,while Performing Routine Surveillance Test,Control Element Assembly 60 Was Dropped Into Core.Cause Unknown.All Parameters Found Normal & No Problems Encountered.No Further Action Anticipated
References
LER-80-006-03L, LER-80-6-3L, NUDOCS 8002110546
Download: ML19260D654 (1)

LER-1980-006, /03L-0:on 800103,while Performing Routine Surveillance Test,Control Element Assembly 60 Was Dropped Into Core.Cause Unknown.All Parameters Found Normal & No Problems Encountered.No Further Action Anticipated

Event date:
Report date:
3171980006R03 - NRC Website

text

NRC "ORM 366 U. S. NUCLEAR REGULATORY COMMISSION (77 1 LICENSEE EVENT REPORT CONTROL SLOCK: l l

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8 60 61 COCKET NUMBER 6d 69 EVENT oATE 14 75 REPORT OATE do EVENT DESCRIPTION AND PROBA8LE CONSECUENCES h l At 1755 while performing a routine surveillance test, Control Element o

2 l Assembly (CEA) 60 was dropped into the core. The CEA was withdrawn and i

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Ileveled with its group at 1845. All other CEA's remained operable during o

4 o s Ithe event. LER's 79-28 (U-2) and 78-48 (U-1) describe similar events.

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J3 34 35 36 37 40 el 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS l It is unknown what caused CEA 60 (U-1) to droo.

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NAME OF PREPARER PHCNE: