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Inspection Detail
Inspection: 1571777 - Blackhawk Services Inc
Inspection Information - Office: Denver Area Office
Site Address:
Blackhawk Services Inc
Open Field Near County Roads 31 & 46
Gilchrest, CO 80623
Mailing Address:
21588 Weld County Road 52, Greeley, CO 80631
Union Status: NonUnion
SIC:1389
NAICS: 0
Inspection Type: Accident
Scope: Partial
Advanced Notice: N
Ownership: Private
Safety/Health: Safety
Close Conference: 05/25/1984
Emphasis:
Case Closed: 06/20/1984
| Type | Activity Nr | Safety | Health |
|---|---|---|---|
| Accident | 360559041 |
| Violations/Penalties | Serious | Willful | Repeat | Other | Unclass | Total |
|---|---|---|---|---|---|---|
| Initial Violations | 1 | 1 | ||||
| Current Violations | 1 | 1 | ||||
| Initial Penalty | $0 | $0 | $0 | $0 | $0 | $0 |
| Current Penalty | $0 | $0 | $0 | $0 | $0 | $0 |
| 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 | Other | 19040002 A | 05/29/1984 | 06/13/1984 | $0 | $0 | $0 | - |
Investigation Summary
EMPLOYEE #1 WAS STANDING AT THE SIDE OF A GAS WELLHEAD, APPARENTLY OPENING THE BALL VALVE IN THE CASING LINE. A CHECK VALVE IN THE FLOW LINE EXPLODED. A LARGE PIECE OF THE EXPLODING VALVE ENTERED EMPLOYEE #1'S CHEST, INFLICTING FATAL INJURIES. FOR REASONS UNKNOWN TO ANYONE, EMPLOYEE #1 HAD THE ENTIRE WELLHEAD SYSTEM, FROM THE WELL TO THE SEPARATOR, CLOSED. HE THEN OPENED THE CASING LINE BELL VALVE, ALLOWING GAS TO FLOW INTO THE SYSTEM THROUGH THE CASING LINE AND BUILD UP GAS PRESSURE. APPARENTLY THE BACK PRESSURE AGAINST THE FLOW LINE CHECK VALVE CAUSED THE VALVE TO EXPLODE. THE VALVE WAS FOUND TO BE RATED AT 300 POUNDS WORKING PRESSURE (450 POUNDS TEST). IT WAS BEING USED IN A SYSTEM WITH A WORKING PRESSURE OF UP TO 2,000 POUNDS.
Keywords: CHEST, GAS WELL, CHECK VALVE, EXPLOSION, HIGH PRESSURE PIPE, HIGH PRESSURE, WELLHEAD, FLYING OBJECT
| # | Inspection | Age | Sex | Degree of Injury | Nature of Injury | Occupation |
|---|---|---|---|---|---|---|
| 1 | 1571777 | Fatality | Puncture | Occupation not reported |