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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 14549760 - Inhalation Of Toxic Gas In A Manhole

Accident: 14549760 -- Report ID: 0454713 -- Event Date: 08/18/1986
InspectionOpen DateSICEstablishment Name
1844385308/20/19864952Winchester Utility-Administration
EMPLOYEE #1 ENTERED A 12 FOOT DEEP MANHOLE TO CLEAR A 12 INCH PLUGGED SEWER MAIN. THE MANHOLE WAS LOCATED ABOUT 450 FEET BEHIND A PRIVATE RESIDENCE ON 811 HIGH STREET. EMPLOYEE #2 AND ANOTHER EMPLOYEE REMAINED OUTSIDE THE MANHOLE TO WATCH EMPLOYEE #1. EMPLOYEE #1 SUDDENLY SAID HE COULDN'T BREATHE AND TRIED TO CLIMB OUT OF THE MANHOLE. HE WAS UNABLE TO CLIMB OUT AND FELL TO THE CONCRETE FLOOR AT THE BOTTOM OF THE MANHOLE. EMPLOYEE #2 TRIED TO TALK TO EMPLOYEE #1 WITH HIS HEAD NEAR THE TOP OF THE MANHOLE. HE ALSO WAS EXPOSED TO THE TOXIC GAS IN THE MANHOLE AND WAS HOSPITALIZED OVERNIGHT. EMPLOYEE #1, WHO WAS KILLED, WAS EXPOSED TO THE TOXIC GAS 10 TO 15 SECONDS BEFORE EXPERIENCING BREATHING DIFFICULTIES.
Keywords: respiratory, confined space, air monitoring, toxic atmosphere, inhalation, manhole, respirator
Employee # Inspection Age Sex Degree Nature Occupation
1 18443853 Fatality Asphyxia Miscellaneous plant and system operators
2 18443853 Hospitalized injury Asphyxia Miscellaneous plant and system operators

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