ML20041C360

LER 82-004/03L-0:on 820126,control Element Assembly 22 Dropped While Moving Part Length Rods for Axial Shape Index Control.Caused by Sluggish Upper Gripper.Time That High Voltage Is Applied to Upper Gripper Extended

ML20041C360
Person / Time
Site:	Arkansas Nuclear
Issue date:	02/12/1982
From:	Rogers P ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML20041C350	List: ML20041C349 ML20041C360
References
LER-82-004-03L-01, LER-82-4-3L-1, NUDOCS 8203010214
Download: ML20041C360 (1)

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NRC F ORM 366 U. 5. NUCLE AR REGULATORY COMMISSION (7 77)

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WI 34 80 DOCnt T hum 6ER W> EVENT D.TE lb HFPOHT OATE EVENT DESCRIPTION AND PROBAoLE CONSEQUENCES Oio o 2 I On 1/26/82 while in Mode 1 at 30% full power, Control Element Assembly i o 2 1 (CEA) 22 dropped while moving part length rods for Axial Shape Index ,

o . 1 (ASI) control resulting in a deviation of more than 19 inches from the i laisii other CEA's within the group. This occurrence is reportable per T.S.6 93 o o i1.9.b. and is similar to LERs 50-368/81-031,79-084, 79-083 and 78-023. ,

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, 3 I the response of the upper gripper, the time that high voltage is applied i i . I to the upper aripper was extended. The.CEA was proved operable and i

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