OSHA Accident Investigation · Summary #823013
TRUSS,ROOF,SPLEEN,UNSECURED,CONSTRUCTION,RIB,FALL,NECK,VERTEBRA
Event description
CONSTRUCTION WORKER INJURED IN FALL FROM ROOF
Investigation abstract
A THREE MAN CONSTRUCTION CREW WAS SETTING PREFABRICATED ROOF TRUSSES OVER THE OF HE FELL ALONG WITH THE TRUSSES. HE WAS HOSPITALIZED. THE ACCIDENT WAS CAUSED BY THE IMPROPER TRUSS BRACING USED BY THE WORK CREW. FICE AND SUPPORT AREA OF A 128 BED NURSING HOME UNDER CONSTRUCTION. THE FIRST TR USS WAS BRACED TO STEEL AND THE CONCRETE FLOOR BY A PIECE OF 2 BY 4. THE SUCCEED ING TRUSSES WERE BRACED BY TWO 2 BY 4S ACROSS THE BOTTOM OF THE TRUSSES, TWO 1 B Y 3S ACROSS THE TOP OF THE TRUSSES AND ONE 1 BY 3 HORIZONTALLY ACROSS THE VERTIC AL END PIECE. DIAGONAL BRACES WERE NOT USED, AND ONLY ONE NAIL WAS USED TO CONNE CT THE BRACING TO THE TRUSSES. THE TRUSSES SUDDENLY FELL OVER, STARTING WITH THE FIRST, WHICH KNOCKED ALL THE OTHERS DOWN IN TURN. EMPLOYEE #1 RECEIVED BRUISED RIBS, A BRUISED SPLEEN AND POSSIBLE PINCHED NERVES IN HIS NECK AND SHOULDER WHEN
Victim
-
#1 Hospitalized Age 24 M
- Nature of injury
- 3
- Part of body
- 4
- Event type
- 5
- Source
- 42
- Occupation code
- 567
- Human factor
- 1
- 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.