ML19221A643
| ML19221A643 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 04/20/1979 |
| From: | Thiesing J INDUSTRY ADVISORY GROUP |
| To: | |
| References | |
| OLS-790420, TASK 24, TASK-24, NUDOCS 7905230505 | |
| Download: ML19221A643 (2) | |
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M. Levenson d c S E N A v e d c!'
S. Levy E. Zebroski Task No.
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Date Complete
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Reason felt task is complete:
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f April 20,1979
,sF 's TO:
S. LEVY
SUBJECT:
POSSIBLE LEAKAGE OF GASF: :S ACTIVITY The gaseous activity in the Aux ary Building is apparently coming from the make-up tank (MU-T-1) vent.
.he activity level of this is above that expected if its source was the MU-T-1.
A likely source for this gas is one or more of the reactor coolant bleed tanks (WDL-T-1 A, 8 or C).
The leakage path could be as follows:
1.
Source: WDL-T-1A, B or C 2.
Through: Air operated diaphragm valve WDL-V26A, B or C 3.
Through: Manually operated diaphragm valve WDG-V116A, B or C 4.
Leakage Past Check Valve WDG-V110 on the MU-T-1 vent 5.
Out MU-V13 or MU-V136 which may be leaking to the room.
Recentnenda tion:
Close valves WDL-V26A, B and C if open.
W. Stroupe WS:dr 166 146