OSHA Accident Investigation · Summary #822759
FRACTURE,HEAD,CONSTRUCTION,FALL,FALL PROTECTION,ROOF OPENING,UNGUARDED,INATTENTION
Event description
CONSTRUCTION EMPLOYEE KILLED IN FALL THROUGH ROOF OPENING
Investigation abstract
A SINGLE STORY WAREHOUSE (380 FEET LONG AND 150 FEET WIDE) HAD BEEN CONSTRUCTED UE FLASHINGS ON THESE CIRCULAR HOLES, WORKING ALL MORNING AND INTO MID-AFTERNOON . UNPACKED CRATES CONTAINING STACKED SMOKE DOMES HAD BEEN PLACED ON THE ROOF. TH E TWO WORKERS WERE STANDING BESIDE ONE OF THE CRATES, WHICH WAS LOCATED ABOUT TW ENTY FEET FROM THE NEAREST 4 BY 4 OPENING. THE LEAD MAN WAS STUDYING A PRINT. HE TOLD HIS COWORKER THAT TWO OF THE HOLES (TO THE EAST) WOULD HAVE TO BE MOVED. H E THEN RESUMED STUDYING THE PRINT WHILE THE OTHER WORKER (EMPLOYEE #1) WALKED SO UTH WHILE LOOKING TOWARD THE EAST. EMPLOYEE #1 STEPPED INTO A HOLE, STILL LOOKIN G TO THE EAST, JUST AS THE LEAD MAN LOOKED UP FROM THE PRINT. EMPLOYEE #1 FELL, HEAD FIRST, TO THE CONCRETE FLOOR. HE WAS KILLED. TO THE POINT THAT THE MASONRY WALLS WERE UP, THE CONCRETE FLOOR HAD BEEN POURED AND THE CORRUGATED ROOF DECKING WAS IN PLACE. TWO ROWS (35 FEET APART) OF FOUR F OOT BY FOUR FOOT HOLES HAD BEEN CUT INTO THE DECKING TO BE FITTED WITH DROP-OUT SMOKE DOMES. THERE WERE THIRTEEN HOLES IN EACH ROW AND THE HOLES WERE TWENTY FIV E FEET APART. BETWEEN THESE TWO ROWS (13 FEET FROM ONE OF THEM) WAS ANOTHER ROW OF CIRCULAR HOLES EIGHT FEET, FOURTEEN INCHES IN DIAMETER. THESE HOLES WERE ALSO ABOUT TWENTY FIVE FEET APART. THE ROOF DECK WAS ABOUT TWENTY TWO FEET, SIX INCH ES ABOVE THE CONCRETE FLOOR. TWO PLUMBING AND HEATING WORKERS WERE INSTALLING FL
Victim
-
#1 Fatality Age 24 M
- Nature of injury
- 21
- Part of body
- 19
- Event type
- 5
- Source
- 42
- Occupation code
- 596
- Human factor
- 14
- Environmental factor
- 13
- 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.