OSHA Accident Investigation · Summary #14393250
MAINTENANCE,CONCRETE MIXER,LOCKOUT,VIBRATIONS,CRUSHED,NECK
Event description
CAUGHT BETWEEN GATE AND CHUTE OF CONCRETE MIXER
Investigation abstract
EMPLOYEE #1 WAS PERFORMING ROUTINE MAINTENANCE INSIDE THE FLOW CHUTES AT A CONCR ETE MIXING PLANT. A GATE IN THE CHUTE, CALLED A "FLOP GATE", DIRECTS THE CONCRET E MIX FLOW TO EITHER MIXER #1 OR #2. A SOLENOID SWITCH, WITH A BUTTON THAT MUST BE PUSHED DOWN AND ROTATED, IS LOCATED ON THE OUTSIDE OF THE CHUTE TO CONTROL TH E "FLOP GATE". EMPLOYEE #1 PUSHED THE BUTTON DOWN AND ROTATED IT TO CLOSE OFF CH UTE #1. WHILE HE WORKED INSIDE CHUTE #2, HAMMERING OFF DRIED CONCRETE, THE CONTR OL BUTTON APPARENTLY POPPED UP BECAUSE OF THE VIBRATIONS FROM THE HAMMERING. THE "FLOP GATE" CLOSED AGAINST EMPLOYEE #1'S NECK, KILLING HIM.
Victim
-
#1 Fatality Age 31 M
- Nature of injury
- 12
- Part of body
- 20
- Event type
- 2
- Source
- 26
- Occupation code
- 999
- Human factor
- 13
- Environmental factor
- 4
- Task assigned
- 1
Codes shown verbatim from OSHA's accident-investigation database. A human-readable decoder is coming in a future release once the accident_lookup2 dictionary is loaded.