05000318/LER-1980-009-03, /03L-0:on 800131,while Conducting Routine Test, Control Element Assembly (CEA) 32 Dropped Into Core.Cause Unknown.Technician Will Be Assigned During Next STP 0-29 to Monitor Operating Parameters of All CEAs on real-time Basi

/03L-0:on 800131,while Conducting Routine Test, Control Element Assembly (CEA) 32 Dropped Into Core.Cause Unknown.Technician Will Be Assigned During Next STP 0-29 to Monitor Operating Parameters of All CEAs on real-time Basis

ML19294B745
Person / Time
Site:	Calvert Cliffs
Issue date:	02/29/1980
From:	Bauer E, Davis S BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19294B743	List: 05000318/LER-1980-009, Forwards LER 80-009/03L-0 05000318/LER-1980-009-03, /03L-0:on 800131,while Conducting Routine Test, Control Element Assembly (CEA) 32 Dropped Into Core.Cause Unknown.Technician Will Be Assigned During Next STP 0-29 to Monitor Operating Parameters of All CEAs on real-time Basi
References
LER-80-009-03L-01, LER-80-9-3L-1, NUDOCS 8003050454
Download: ML19294B745 (2)

LER-1980-009, /03L-0:on 800131,while Conducting Routine Test, Control Element Assembly (CEA) 32 Dropped Into Core.Cause Unknown.Technician Will Be Assigned During Next STP 0-29 to Monitor Operating Parameters of All CEAs on real-time Basis

Event date:
Report date:
3181980009R03 - NRC Website

text

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8 60 61 oOCKET NUMBER 68 69 EVENT oATE 74 75 REPORT oATE 80 EVENT DESCRIPTION AND pro 8 ABLE CONSEQUENCES h l At 2212 while conductina a routine test, control element assembly (CEA) 32 i

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i droceed into the core.

Reactor power was reduced to < 70% within one hour i

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I cer T.S. 3.1.3.1.

CEA 32 was withdrawn to its group at 2350. All other l

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l CEA's remained operable. As a result of the dropped CEA, Azimuthal Tilt l

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l (TO) exceeded T.S. 3.2.4 limit of 0.03 at 0016 on 2/1/80. Tg returned to o

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ITTTI I by the operator 68 minutes after it dropped.

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NAME oF PREPARER PHONE:

LER NO.

80-09/3L DOCKET NO.

50-318 EVENT DATE 01/31/80 REPORT DATE 02/29/80 ATTACH!1ENT EVENT DESCRIPTION Afl0 PROBABLE CONSEOUEi!CES:

(CONTINUED)

Tg returned to less than 0.03 at 0315 on 2/1/80.

Planar Radial and Integrated Radial Peaking Factors remained within Technical Specifi-cation limits.

LER's 79-03 (U-1) and 80-06 (U-1) describe similar events.