ML20210G941

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Informs That on 990610 Palisades 1 Notfied NRC That on 990609,minor Hydrogen Burns Occurred During Welding of Structural Lid on Sf Storage Cask
ML20210G941
Person / Time
Site: Palisades Entergy icon.png
Issue date: 06/11/1999
From: Greene S
NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
To: Easton E, Paperiello C, William E
NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
Shared Package
ML20210G839 List:
References
FOIA-99-264 NUDOCS 9908030236
Download: ML20210G941 (1)


Text

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From: Susan GreenejD \

To: Carl Paperiellf, E. William rach, EarfEaston, ...

Date: Fri, Jun 11,199912:12 PM

Subject:

Fwd: Rill- PN399031 The following information is provided FYi as part of the IMNS regional coordination effort i On 6/1999, Palisades 1 notified NRC that, at about 5:00 pm and 7:30 pm on 6/9/99, minor hydrogen bums occurred during the welding of the structurallid on a spent fuel storage cask. These brief bums occurred outside the cask at the discharge end of the tygon tubing being used to draw gases from the interior of the cask, in each instance, the flame was extinguished by pinching the tygon tubing.

This hydrogen buming is of minor safety significance because the buming was outside the cask at the discharge end of the tubing and no air was being added to the cask that would support ignition of any hydrogen inside the cask. This case is significcat because of the lack of management control at the because management was not notified of these events until the next morning.

Additional, more specific information is contained in the attached PN.

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