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Inspection Detail
Inspection: 314109356 - Horsehead Corporation
Inspection Information - Office: Pittsburgh Area Office
Site Address:
Horsehead Corporation
300 Frankfort Road
Monaca, PA 15061
Mailing Address:
, , 00000
Union Status: Union
SIC:3339
NAICS: 331419/Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum)
Inspection Type: Accident
Scope: Partial
Advanced Notice: Y
Ownership: Private
Safety/Health: Safety
Close Conference: 01/19/2011
Emphasis:
Case Closed: 05/15/2013
| Type | Activity Nr | Safety | Health |
|---|---|---|---|
| Accident | 100541721 |
| Violations/Penalties | Serious | Willful | Repeat | Other | Unclass | Total |
|---|---|---|---|---|---|---|
| Initial Violations | 3 | 3 | ||||
| Current Violations | 3 | 3 | ||||
| Initial Penalty | $21,000 | $0 | $0 | $0 | $0 | $21,000 |
| Current Penalty | $21,000 | $0 | $0 | $0 | $0 | $21,000 |
| FTA Penalty | $0 | $0 | $0 | $0 | $0 | $0 |
| # | Citation ID | Citaton Type | Standard Cited | Issuance Date | Abatement Due Date | Current Penalty | Initial Penalty | FTA Penalty | Contest | Latest Event | Note |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 01001 | Serious | 5A0001 | 01/19/2011 | 01/24/2011 | $7,000 | $7,000 | $0 | 02/07/2011 | F - Formal Settlement | |
| 2. | 01002 | Serious | 5A0001 | 01/19/2011 | 01/24/2011 | $7,000 | $7,000 | $0 | 02/07/2011 | F - Formal Settlement | |
| 3. | 01003 | Serious | 5A0001 | 01/19/2011 | 01/24/2011 | $7,000 | $7,000 | $0 | 02/07/2011 | F - Formal Settlement |
Investigation Summary
Employee #1 and Emplyee #2 died when molten zinc leaked from the tray column and into the firing chamber. The molten zinc vaporized and expanded in the firing chamber and combusted with the available oxygen. This expansion and combustion was significant enough to blow out all four explosion panels. This allowed the introduction of a significant amount of oxygen from the outside air which caused the vaporized zinc to combust and result in a fire ball.
Keywords: FIRE, EXPLOSION
| # | Inspection | Age | Sex | Degree of Injury | Nature of Injury | Occupation |
|---|---|---|---|---|---|---|
| 1 | 314109356 | Fatality | Asphyxia | Occupation not reported | ||
| 2 | 314109356 | Fatality | Asphyxia | Occupation not reported |