Inspection Detail

Inspection: 111942157 - Hercules Aerospace Company

Inspection Information - Office: Fresno District Office

Inspection Nr: 111942157

Report ID: 0950626

Date Opened: 09/07/1990

Site Address:
Hercules Aerospace Company
Area 1123 - Ic
Edwards Air Force Base, CA 93516

Mailing Address:
P. O. Box Drawer G, Baron, CA 93516

Union Status: NonUnion

SIC:8731

NAICS: 0

Inspection Type: Unprog Rel

Scope: Complete

Advanced Notice: N

Ownership: Private

Safety/Health: Safety

Close Conference: 02/14/1991

Emphasis:

Case Closed: 12/16/1994

Related Activity
Type	Activity Nr	Safety	Health
Inspection	111942132

Violation Summary
Violations/Penalties	Serious	Willful	Repeat	Other	Unclass	Total
Initial Violations	4			2		6
Current Violations	4			2		6
Initial Penalty	$10,500	$0	$0	$0	$0	$10,500
Current Penalty	$10,500	$0	$0	$0	$0	$10,500
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	Latest Event
1.	01001	Other	14301 A01	02/15/1991	02/28/1991	$0	$0	$0	-
2.	01002	Other	23400023	02/15/1991	03/15/1991	$0	$0	$0	-
3.	02001	Serious	3203 A01	02/15/1991	03/15/1991	$2,500	$2,500	$0	-
4.	03001	Serious	3220 B01	02/15/1991	03/15/1991	$2,500	$2,500	$0	-
5.	04001	Serious	3328 A	02/15/1991	02/28/1991	$3,000	$3,000	$0	-
6.	05001	Serious	4999 A	02/15/1991	02/28/1991	$2,500	$2,500	$0	-

Investigation Summary

Investigation Nr: 170203715

Event: 09/07/1990

One killed, three hurt when crane counterweights fall

At approximately 10:56 a.m. on September 7, 1990, Employees #1 through #4 were helping to hoist and move a Titan AFT rocket motor segment from a test stand. A Lampson Crane, model LTL900, was seated on sheets of plywood that were placed on a 7 1/4 in. to 8 in. deep surface of pea-like gravel and road base aggregate that had been spread over the uneven fractured concrete surface. During a counterrotation of the crane's front crawler, the left track of the crawler sank into the pea-like gravel, resulting in the crane boom going too far out of horizontal level. The rocket motor then swung out beyond the crane's safe design limit, causing the main boom center pin to break loose. The main boom of the crane fell to the left, and the AFT rigging strut knocked off the left counterweights, which fell on Employee #1. He was crushed and killed. Employees #2 through #4 also sustained injuries; only Employee #2 was hospitalized.

Keywords: UNEVEN GROUND, WORK RULES, CRANE COUNTERWEIGHT, CRANE BOOM, CRAWLER CRANE, CRUSHED, STRUCK BY, UNSTABLE SOIL, FALLING OBJECT

Investigated Inspection
#	Inspection	Age	Sex	Degree of Injury	Nature of Injury	Occupation
1	111942157					Occupation Not Listed

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