OSHA Accident Investigation · Summary #1001296
GREAT PLAINS SUPPLY COMPANY
WALKER, IA·
Event description
EMPLOYEES STANDING ON TRUSSES FELL; WIND BLEW TRUSSES
Investigation abstract
AT 4:15 PM ON SEPTEMBER 8, 1986, FIVE EMPLOYEES WERE INSTALLING TRUSSES AN THE R OOF OF A GRAIN STORAGE BUILDING. THE EMPLOYEES HAD INSTALLED 23 OF THE TOTAL OF 25 TRUSSES. EMPLOYEES #1 AND 2 WERE STANDING ON THE TRUSSES, BRACING THEM TOGETH ER WITH 2 BY 4'S. TWO OTHER EMPLOYEES WERE ON LADDERS AT THE WALLS WHERE THE TRU SSES RESTED, NAILING THE TRUSSES TO THE WALLS. A GUST OF WIND BLEW THE TRUSSES O VER IN A DOMINO EFFECT, CAUSING THE TRUSSES TO FALL 23 FEET TO THE GROUND. EMPLO YEES #1 AND 2 FELL WITH THE TRUSSES. THEY WERE HOSPITALIZED. THE TRUSSES HAD BEE N SUPPORTED BY GUY ROPES IN BOTH DIRECTIONS.
Victims (2)
-
#1 Hospitalized Age 25 M
- Nature of injury
- 3
- Part of body
- 14
- Event type
- 5
- Source
- 32
- Occupation code
- 567
- Human factor
- 14
- Environmental factor
- 17
- Task assigned
- 1
-
#2 Hospitalized Age 19 M
- Nature of injury
- 12
- Part of body
- 15
- Event type
- 5
- Source
- 32
- Occupation code
- 567
- Human factor
- 14
- Environmental factor
- 17
- 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.