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Occupational Safety and Health Administration OSHA

Inspection Detail

Inspection: 105522296 - Allied Piping Co

Inspection Information - Office: Tenn Cmpl Sfty 6

Nr: 105522296Report ID: 0454716Open Date: 05/28/1988

Allied Piping Co
2301 Buffalo Rd
Johnson City, TN 37604
Union Status: NonUnion
SIC: 1711/Plumbing, Heating and Air-Conditioning
Mailing: 1407 East Fairview Ave, Johnson City, TN 37601

Inspection Type:Accident
Scope:Partial Advanced Notice:N
Ownership:Private
Safety/Health:Safety Close Conference:05/28/1988
Planning Guide: Safety-Construction Close Case:05/28/1988

Related Activity:TypeIDSafetyHealth
 Accident360285720    

Accident Investigation Summary
Summary Nr: 14214027Event: 05/28/1988One Employee Killed, Others Injured When Unit Explodes
This accident occurred in the sterilization area where two 45 ft long by 4 ft 10 in. wide by 6 ft 6 in. high sterilization units were situated side by side. The construction crews were replacing a door on the unloading end of unit #1, using a torch powered by MAPP (methylacetylene propadiene) gas. Grinding was also being done. A few seconds after the door on unit #2 was opened an explosion occurred at unit #2. Several employees were directly in front of or near the exploding unit. Other employees were at unit #1. Employees #1 through #7 sustained burns and/or other injuries. Employee #8 died. The fuel sources were ethylene oxide (ETO), MAPP, propane, and gasoline. The gasoline was in a small can and the propane was in a cylinder on a forklift. Neither is considered to have caused the explosion. A small leak was found between the MAPP cylinder and the regulator, but it was not considered to have been large enough to have caused the explosion. The explosion apparently was caused by the ETO that was still in unit #2 and which ignited when unit #2 was opened.
Keywords: leak, explosion, ethylene oxide, propane, gasoline, construction
Inspection Degree Nature Occupation
1 105522296 Hospitalized injury Burn/Scald(Heat) Plumbers, pipefitters and steamfitters
2 105522296 Fatality Burn/Scald(Heat) Plumbers, pipefitters and steamfitters

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