Accident Report Detail

Accident Summary Nr: 568451 - Twenty employees overexposed to ammonia during release

Accident Summary Nr: 568451 -- Report ID: 0627100 -- Event Date: 03/29/1995
Inspection Nr	Date Opened	SIC	NAICS	Establishment Name
107710147	03/30/1995	2015	0	Tyson Foods, Inc.

Abstract: Sometime during the night of March 29, 1995, the #3 freezer fan lost a balancing weight that measured approximately 1 in. by 1 in. The balancing weight fell and ruptured an ammonia filled coil. The ammonia system operates under a vacuum. When the system lost its vacuum, air was pulled into the system and caused pressure to rise, making the relief valve vent ammonia into an accumulator on top of the roof that vents into the atmosphere. The vented ammonia traveled to production buildings 300 ft or more away. Employees #1 through #5 were hospitalized for ammonia overexposure, and Employees #6 through #20 were treated and released.

Keywords: AMMONIA, VENTING, TOXIC ATMOSPHERE, EQUIPMENT FAILURE, RUPTURE, GAS LEAK, TOXIC FUMES, OVEREXPOSURE

Employee Details
Employee #	Inspection Nr	Degree of Injury	Nature of Injury	Occupation
1	107710147	Hospitalized injury	Other	Occupation not reported
2	107710147	Non Hospitalized injury	Other	Occupation not reported
3	107710147	Non Hospitalized injury	Other	Occupation not reported
4	107710147	Non Hospitalized injury	Other	Occupation not reported
5	107710147	Non Hospitalized injury	Other	Occupation not reported
6	107710147	Hospitalized injury	Other	Occupation not reported
7	107710147	Hospitalized injury	Other	Occupation not reported
8	107710147	Hospitalized injury	Other	Occupation not reported
9	107710147	Hospitalized injury	Other	Occupation not reported
10	107710147	Non Hospitalized injury	Other	Occupation not reported
11	107710147	Non Hospitalized injury	Other	Occupation not reported
12	107710147	Non Hospitalized injury	Other	Occupation not reported
13	107710147	Non Hospitalized injury	Other	Occupation not reported
14	107710147	Non Hospitalized injury	Other	Occupation not reported
15	107710147	Non Hospitalized injury	Other	Occupation not reported
16	107710147	Non Hospitalized injury	Other	Occupation not reported
17	107710147	Non Hospitalized injury	Other	Occupation not reported
18	107710147	Non Hospitalized injury	Other	Occupation not reported
19	107710147	Non Hospitalized injury	Other	Occupation not reported
20	107710147	Non Hospitalized injury	Other	Occupation not reported

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