OSHA Accident Investigation · Summary #14307375
TRUSS,COLLAPSE,FALL,AERIAL LIFT
Event description
CATAPULTED FROM AN AERIAL LIFT BASKET
Investigation abstract
ACCORDING TO THE SUPERINTENDANT NO MORE THAN THREE CROSS RECTANGULAR TRUSSES SHO ULD HAVE BEEN REMOVED. THERE WAS A TOTAL OF 13 TRUSSES. TEN HAD BEEN TOTALLY REM OVED FROM A 240 FOOT BI-LATERAL SIDE RUN. ON THE THREE REMAINING TRUSSES ONLY TH E BOTTOM CONNECTIONS WERE SUPPOSED TO HAVE BEEN SEPARATED FROM THE SIDE FRAMING (BOTH SIDES). THE PROCEDURE WAS THEN TO PUSH THE STEEL FRAME BUILDING OVER AND C ONTINUE TO CUT THE FRAMING APART FOR LOADING AND REMOVAL. ACCORDING TO THE SUPER INTENDENT THE EMPLOYEE CONTINUED TO COMPLETELY SEVER THE OUTER TWO TRUSSES ON TH E SOUTH SIDE, LEAVING ONLY THE CENTER TRUSS (WITH TOP FRAME CONNECTION) TO SUPPO RT THE ENTIRE STRUCTURE LATERALLY.
Victim
-
#1 Fatality Age 35 M
- Nature of injury
- 12
- Part of body
- 13
- Event type
- 5
- Source
- 24
- Occupation code
- 599
- Human factor
- 4
- Environmental factor
- 6
- 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.