05000348/LER-1980-058-03, /03L-0:on 801007,discrepancies Between Tendon Installation QC Records & as-found Conditions Detected. Visual Insp Planned to Verify QC Records on All Tendons Which Will Be Tested in 1981

/03L-0:on 801007,discrepancies Between Tendon Installation QC Records & as-found Conditions Detected. Visual Insp Planned to Verify QC Records on All Tendons Which Will Be Tested in 1981

ML19339B645
Person / Time
Site:	Farley
Issue date:	11/04/1980
From:	ALABAMA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19339B644	List: 05000348/LER-1980-058-03, /03L-0:on 801007,discrepancies Between Tendon Installation QC Records & as-found Conditions Detected. Visual Insp Planned to Verify QC Records on All Tendons Which Will Be Tested in 1981 05000348/LER-1980-059-03, /03L-0:on 801004,B Train Exhaust Fan Failed to Start.Caused by Shorted Switchgear Auxiliary Relay Resulting in Blown Fuses.Relay & Fuses Replaced ML19339B643
References
LER-80-058-03L, LER-80-58-3L, NUDOCS 8011070374
Download: ML19339B645 (2)

LER-1980-058, /03L-0:on 801007,discrepancies Between Tendon Installation QC Records & as-found Conditions Detected. Visual Insp Planned to Verify QC Records on All Tendons Which Will Be Tested in 1981

Event date:
Report date:
3481980058R03 - NRC Website

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A LICENSEE EVENT REPORT U~

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(PLE ASE IT,1NT o A TYPE A!.L RICUIRED INFORes4TICMI 1

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6 60 61 DOCK!T NU'.tBER 68 69 EVENT DATg "a

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EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES h 10121 IIn accordance with our discussions with the NRC staff on Oc:ober 7,1980, the followingl g lis submitted. The three-year containment tendon surveillan:e performed in accordance l l o 14 l lwith surveillance test procedure #FNP-1-STP-609.0 revealed :nexOected tendon lif t-off l

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j l o l s l l forces. In addition, discrepancies between tendon installation QC records and "as l

lalsllfound" conditions were detected. The health and safety of :he public were not affected)

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33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h 11101 fro clear up the anomalv observed in the lif t-of f forces. A1E'aara Po.rer is advanch the l ITTi l ifive year surveillance to the spring of 1981. In addition, all tendons covered under I

,, i,i ithe three-year surveillance program will have their lif t-off forces checked at this l

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(SEE ATTACHED FOR CONTINUATION) l i A 7

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CAUSE DESCRIPTION AND CORRECTIVE ACTIONS (27)

The calibration of the rams used'in the surveillance test is the primary suspect contributing to the lift-off force anomaly.

Ra= calibration will be carefully ensured and verified using approved procedures. ? cst-surveillance calibration will be performed and lift-off data verified prior :o completion of the contract.

If the anomaly cannot be tied to the ram calibratics, appropriate action required by technical specifications will be taken.

To resolve possible discrepancies in dccumented tendon installation. ;isual inspections are planned to verify QC records on all tendons which will be tested

. in the spring of 1981. Such visual inspections could be expanded as a result of 4

these findings.

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