Inspection Detail

Inspection: 1571777 - Blackhawk Services Inc

Inspection Information - Office: Denver Area Office

Inspection Nr: 1571777

Report ID: 0830500

Date Opened: 05/08/1984

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

Related Activity
Type	Activity Nr	Safety	Health
Accident	360559041

Violation Summary
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

Violation Items
#	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

Investigation Nr: 14506257

Event: 05/04/1984

EMPLOYEE STRUCK BY PIECE OF EXPLODING VALVE

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

Investigated Inspection
#	Inspection	Age	Sex	Degree of Injury	Nature of Injury	Occupation
1	1571777			Fatality	Puncture	Occupation not reported

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