ML19250B905
| ML19250B905 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 10/16/1979 |
| From: | NRC COMMISSION (OCM) |
| To: | |
| References | |
| NUDOCS 7911060057 | |
| Download: ML19250B905 (101) | |
Text
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F U. S. NUCLE AR HEGULATORY COMM10SION
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Ll";ENSEE EVENT REPORT 0 778 CONTROL ULOCK: l l
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DOCK ET *.1.,*/U E R 64 63 EVENT DATL 74 75 HEPORT DATE NO EVENT DESCRIPTION AND PROBADLE CONSEQUENCES h
[Tl71 l During normal operating the Unit 1 passive gas monitor, 1RT-PR15, I
failed low and would not reset.
The monitor was taken OOS and shiftly I o
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o a I gas samples were taken off the steam pipe tunnel rad monitor, lRT-1 o
s PR07AB, as required by Tech Spec 3.14.1.c.
There were no safety l
0m l implications and the health and safety of the general public were l
l0l7 l not affGCted.
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Ju 3e 40 43 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS ii yl The instrument fail settino of the module drifted out of calibration.
I li li I above the normal backgrouri levels of the monitor, causinc it te i
constantly trip.
The dial was re-calibrated and set to the correct l value.
The monitor was functionally tested and returned to service.
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] No further corrective action is necessary.
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8 9 80 STA S
'. POV E R OTHER STATUS CISCO Y
DISCON ERY CESCR.PTION
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