05000321/LER-1981-108-03, RCIC Steam Line Dp Switch N017 Actuated High.Caused by Setpoint Drift.Barton Model 288A Switch Recalibr.Administrative Setpoint Lowered

RCIC Steam Line Dp Switch N017 Actuated High.Caused by Setpoint Drift.Barton Model 288A Switch Recalibr.Administrative Setpoint Lowered

ML20028A461
Person / Time
Site:	Hatch
Issue date:	11/04/1982
From:	Tipps S GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20028A458	List: 05000321/LER-1981-108, Forwards Revised LER 81-108/03X-1 05000321/LER-1981-108-03, RCIC Steam Line Dp Switch N017 Actuated High.Caused by Setpoint Drift.Barton Model 288A Switch Recalibr.Administrative Setpoint Lowered
References
LER-81-108-03X, LER-81-108-3X, NUDOCS 8211220190
Download: ML20028A461 (1)

LER-1981-108, RCIC Steam Line Dp Switch N017 Actuated High.Caused by Setpoint Drift.Barton Model 288A Switch Recalibr.Administrative Setpoint Lowered

Event date:
Report date:
3211981108R03 - NRC Website

text

ZRC FORM 366 U. S. NUCLE AR REGULATC RY COMMISSION mm UPDATE REPORT - PREVIOUS LICENSEE EVENT REPORT REPORT DATE 10/27/81 g

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8 f,0 61 DOCKET NUMBE R 68 6'J EVENT DATE 14 lb REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h o 2 lWhile the plant was operating steady-ntnen ne 1non uwe; tan ugi7 ncTc I

gOi3, l Steam Line dp Switch, was found to actuate at 214 inches of water. Tech.l l 0 l4 l l Specs. Table 3. 2-3, item 10, requires actuation at </= 300 percent flow l l_(207 inches : 191 + 16 inches water head correction). Redundant switch, 1

O 3 lN018 was operable. Plant operation was not affected. Public health and l

O e l0 lil l safety were not af fected by this repetitive event as last reported on LERl l 50-321/1981-0 95.

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40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h lThe cause of this event has been attributed to setpoint drift.

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i O l switch, a Barton Model 288A, was recalibrated, successfully functionallyi i i g l tested, and returned to service.

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