Accident Report Detail

Accident Summary Nr: 170159875 - EMPLOYEE INJURED WHEN STRUCK BY DRILL-STRING SLIDE

Accident Summary Nr: 170159875 -- Report ID: 0950632 -- Event Date: 11/15/1990
Inspection Nr	Date Opened	SIC	NAICS	Establishment Name
112004726	11/16/1990	9621	0	Ca Transportation Dept.

Abstract: EMPLOYEE #1 WAS OBSERVING THE INSTALLATION OF A LOCKING CAP WHILE STANDING ABOUT 15 FEET FROM THE REAR OF A DRILL RIG THAT HAD A 9-FOOT BY 13-INCH DRILL-STRING SLIDE SUSPENDED FROM A 1/4-INCH CABLE. THE CABLE BROKE AND THE 80-POUND SLIDE BOUNCED OFF THE DERRICK SUPERSTRUCTURE, BOUNCED AGAIN OFF THE GROUND, AND THEN STRUCK THE EMPLOYEE ON TOP OF THE RIGHT SHOULDER. THE HOIST IS ON A TRAILER MOUNTED "MOBILE" DRILL MODEL B47 USED BY THE EMPLOYER TO DRILL WATER TEST WELLS. THE EMPLOYEE'S INJURIES INCLUDED A COMPRESSION OF THE 5TH THORACIC VERTEBRA AND FRACTURES OF THE 3RD THROUGH 7TH RIBS ON HIS RIGHT SIDE. THE CABLE PARTED DUE TO TENSION STRESS FROM THE HOISTING CABLE SWIVEL TOUCHING THE HEAD SHEAVE.

Keywords: DERRICK, FRACTURE, RIB, DRILL RIG--NON-OIL, STRUCK BY, VERTEBRA

Employee Details
Employee #	Inspection Nr	Age	Sex	Degree of Injury	Nature of Injury	Occupation
1	112004726			Hospitalized injury	Fracture	Engineers, n.e.c.

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