ENS 40530

v t e ENS Event
22:00 Feb 17, 2004
Title	Unplanned Contamination
Event Description	USAF personnel in the Johnston Atoll in the Pacific were attempting to remove the "batteries" from an exit sign they believed to be battery powered. During the attempt to open the case, they destroyed the sign only to discover that it was a tritium sign. All tritium modules were broken. Five personnel were in the room at the time and all were potentially exposed to the tritium. The Radiation Safety Officer (RSO) isolated the room and the personnel clothing, etc. Pre-cleanup surveys indicated greater than 6 times the normal background survey readings in the room. The RSO double-bagged the sign and tritium module debris. The room and work areas were decontaminated. Post-cleanup surveys indicated normal background readings. Personnel uptake and dose evaluations are currently being assessed. The tritium sign was an Isolite model 2040 with original activity of 15.0 Curies and was manufactured in March of 1993. Current activity was calculated to be 8.06 Curies. The RSO will follow up with Region 4 concerning personnel tritium uptake and contamination levels as well as equivalent dose calculations. The licensee will be notifying Region 4 Materials branch.

ENS 40530 +/-
Where
Us Air Force - Johnston Atoll (NRC Region)
License number:	42-23539-01AF
Organization:	Us Air Force
Reporting

10 CFR 30.50(b)(1)
Time - Person (Reporting Time:+17.55 h0.731 days <br />0.104 weeks <br />0.024 months <br />)
Opened:	David Pugh 15:33 Feb 18, 2004
NRC Officer:	Howie Crouch
Last Updated:	Feb 18, 2004
40530 - NRC Website
v • d • e

v t e Emergency Notification System
Us Air Force - Johnston Atoll with 10 CFR 30.50(b)(1)
WEEKMONTHYEAR2004-02-17T22:00:00 [Table view]
[ENS list for Us Air Force - Johnston Atoll]

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