OSHA Accident Investigation · Summary #14337646
CHOCK,REPAIR,COLLAPSE,UNSECURED,PINNED,LOAD SHIFT,MECHANIC,TRACTOR TRAILER,JACK
Event description
Employee killed under collapsing semi-trailer
Investigation abstract
On October 26, 1989, Employee #1, a driver/mechanic of a mobile service unit, re he still-supporting right leg, the trailer shifted to the right, folding the rig ht leg underneath, flipping the jack out, and pinning Employee #1 underneath. He was killed. sponded to a service call concerning a problem with the landing gear of a semi-t railer. The employee used a modified landing gear leg from another trailer as a mechanical jack to raise the left front of the trailer in order to remove the de fective left leg of the landing gear. Raising one side of the fully loaded trail er (59,000 lb) shifted its center of gravity to the right. The nose of the trail er was not cribbed, blocked, or otherwise secured as Employee #1 worked undernea th it, removing the cross bracing between the two legs of the landing gear. When sufficient cross bracing had been removed to destroy the lateral stability of t
Victim
-
#1 Fatality Age 35 M
- Nature of injury
- 2
- Part of body
- 5
- Event type
- 2
- Source
- 29
- Occupation code
- 999
- Human factor
- 4
- Environmental factor
- 4
- Task assigned
- 1
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