Accident Report Detail

Accident Summary Nr: 200461440 - Two Workers Died Due to Malfunctioning Respiratory Devices

Accident Summary Nr: 200461440 -- Report ID: 0111400 -- Event Date: 07/21/1999
Inspection Nr	Date Opened	SIC	NAICS	Establishment Name
302064902	07/21/1999	1799	562910	Norwesco Marine, Incorporated

Abstract: Two commercial diving contractors were subcontracted to remove bulkheads from the bottom of 55 vertical diffusers in a nine-mile tunnel below the ocean floor. The tunnel was oxygen deficient (about 9), and had an IDLH atmosphere. Employee #1 and Employee #2 of the five-person crew (one from each contractor) died of lack of oxygen when the respiratory devices they were using malfunctioned.

Keywords: OXYGEN DEFICIENCY, ASPHYXIATED, IDLH, DIVING, COMMERCIAL DIVING, RESPIRATOR

Accident Details
End Use		Project Type		Project Cost	Stories	Non-building Height	Fatality
Sewer/water treatment plant		New project or new addition		$20,000,000 and over			X

Employee Details
Employee #	Inspection Nr	Age	Sex	Degree of Injury	Nature of Injury	Occupation
1	302064902			Fatality	Asphyxia	Occupation not reported

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