05000368/LER-1978-033-03, /03L-0 on 781230:during Mode 3 Operation,C Containment Bldg Pressure Transmitter Failed to 60 Psia W/No Consequences.Failure Appears Isolated

/03L-0 on 781230:during Mode 3 Operation,C Containment Bldg Pressure Transmitter Failed to 60 Psia W/No Consequences.Failure Appears Isolated

ML19270F231
Person / Time
Site:	Arkansas Nuclear
Issue date:	01/29/1979
From:	Shively C ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19270F230	List: 05000368/LER-1978-033, Forwards LER 78-033/03L-0 & LER 78-034/03L-0 05000368/LER-1978-033-03, /03L-0 on 781230:during Mode 3 Operation,C Containment Bldg Pressure Transmitter Failed to 60 Psia W/No Consequences.Failure Appears Isolated 05000368/LER-1978-034-03, /03L-0 on 781230:during Mode 3,all Control Element Assemblies Fully Inserted, & Signal Leads from Upper & Lower Detector Chambers of B Linear Safety Channels Found to Be Swapped.Chamber Leads Were Reconnected Correctly
References
LER-78-033-03L, LER-78-33-3L, NUDOCS 7902050116
Download: ML19270F231 (1)

LER-1978-033, /03L-0 on 781230:during Mode 3 Operation,C Containment Bldg Pressure Transmitter Failed to 60 Psia W/No Consequences.Failure Appears Isolated

Event date:
Report date:
3681978033R03 - NRC Website

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NRC FORM 366 U. S NUCLE AR REGUL ATORY COMMISSION (7 77)

LICENSEE EVENT REPORT EXHIBIT A A

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8 60 61 COCK E T NUMBER 6d 69 EVENT DATE le 15 HF POH i O ATE 80 EVENT DESCRIPTION AND PROBAGLE CONSEQUENCES Oio n

2 i During Mode 3 operation, PPS "C Containment Building Pressure j

iO ;3i ; transmitter failed to 60 psia. There were no consequences.

Effected

Oi.1i trips were bypassed. There have been no similar occurrences.

Reported n s ; per T.S. 6.9.1.9. (b).

Regairements of Action Statement Table 3.3-3, O

6 l Action 9 & 10 were met.

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CAUSE DESCR.PT.ON AND CORRECitVE ACTIONS li 10 I l_ The current-to-current transmitter was dissassembled with no problems ii,,i noted.

Appears to be an isolated failure. Transmitter was ITTT1 1 returned to service and removed trips from bypass.

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DESCRIPTION

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