OSHA Accident Investigation · Summary #14456750
COLLAPSE,GUY,ELEC UTILITY WORK,FALL,TRANSMISSION TOWER
Event description
FALL - COLLAPSE OF TRANSMISSION TOWER
Investigation abstract
AN INSPECTOR FOR A POWER LINE CONSTRUCTION FIRM WAS IN CHARGE OF QUALITY CONTROL . WHILE HE WAS PLUMBING A TRANSMISSION TOWER, A CRACKING NOISE COULD BE HEARD CO MING FROM THE UPPER PART OF THE TOWER. AS PART OF HIS JOB AS AN INSPECTOR, HE MA DE THE 60-FOOT CLIMB UP THE TOWER TO INVESTIGATE. THE ATTACHMENT FOR THE SOUTHEA ST GUY WAS SUPPOSED TO HAVE BEEN A 1-INCH UNIT, BUT IT HAD BEEN INSTALLED WITH 1 .125-INCH NUTS. CONSEQUENTLY, AS THE TENSION INCREASED, THE UNIT EVENTUALLY SHEA RED. THIS OCCURRED WHILE THE EMPLOYEE WAS ON THE TOWER. WHEN THE UNIT SHEARED, T HE TOWER ROTATED AND FELL INTO A PARALLEL OVERHEAD POWER LINE. THE EMPLOYEE FELL TO A DIRT ROADWAY BELOW AND WAS KILLED.
Victim
-
#1 Fatality Age 26 M
- Nature of injury
- 21
- Part of body
- 13
- Event type
- 5
- Source
- 5
- Occupation code
- 35
- Human factor
- 17
- Environmental factor
- 18
- 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.