05000325/LER-1980-054-03, /03L-0:on 800628,while Testing Control Rods, Position 30 for Rod 46-11 & Positions 12,13,16,17 & 19 for Rod 14-35 Did Not Indicate.Caused by Defective Reed Switch for Rod 46-11 & Loose Probe Connector on Rod 14-35

/03L-0:on 800628,while Testing Control Rods, Position 30 for Rod 46-11 & Positions 12,13,16,17 & 19 for Rod 14-35 Did Not Indicate.Caused by Defective Reed Switch for Rod 46-11 & Loose Probe Connector on Rod 14-35

ML19327A246
Person / Time
Site:	Brunswick
Issue date:	07/22/1980
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19327A245	List: 05000325/LER-1980-054, Forwards LER 80-054/03L-0 05000325/LER-1980-054-03, /03L-0:on 800628,while Testing Control Rods, Position 30 for Rod 46-11 & Positions 12,13,16,17 & 19 for Rod 14-35 Did Not Indicate.Caused by Defective Reed Switch for Rod 46-11 & Loose Probe Connector on Rod 14-35
References
LER-80-054-03L, LER-80-54-3L, NUDOCS 8008050039
Download: ML19327A246 (1)

LER-1980-054, /03L-0:on 800628,while Testing Control Rods, Position 30 for Rod 46-11 & Positions 12,13,16,17 & 19 for Rod 14-35 Did Not Indicate.Caused by Defective Reed Switch for Rod 46-11 & Loose Probe Connector on Rod 14-35

Event date:
Report date:
3251980054R03 - NRC Website

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LICENSEE EVENT REPORT

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I (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATIONI I

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f.0 G1 DOCK ET t.UYSE R 63 69 EVENT DATE 74 75 REPORT DATE 80 EV5f4T DESCRIPTION AND PROBABLE COMEOVENCES h lo 121 l While testine cenerni r,ds-nne s nn in enr vna 6 6.- 1 1 aia nn-o,a i e, r e, i

1 o 131 I In addition. nositions 12. 13. 16. 17 and 19 for rod 14-35 did nor indim te-l 10141 l This event did not: affect the health or safety of the nub!ic-I 10 151 l l

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JJ J4 sh 36 ed 40 41 42 43 44 47 CAUSE CESCRiPTION AND CORRECTIVE ACTIONS h li101l The rosition "30" reed switch for rod 46-11 was found defective.

It was renlaced I

I1 11 I l and the r6d position indications were determined sa tisf actory.

A loose PIP orobe I

1i17i I connector on rod 14-3s was found, it was retightened. and the position indicatiens l

i1 l 31 l for the rod were determined satisf actorv.

Due to a history of control rod position I i i 14 I l indication problems. Plant Engineering is currently investigating to determine if a l a,,9feneric prob 1cm exists.

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7 8 9 11 12 50 LOSS OF OR DAMAGE TO FACILtTY TYPE DE SCRIPTION FiTil I Z l@l NA I

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10 80 PUBL ICITY NRC USE ONLY IS

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919-457-9521 2

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