OSHA Accident Investigation · Summary #14492912
DOGHOUSE,CROWN BLOCK,LACERATION,TWO-BLOCKING,CONTUSION,WIRE ROPE,TRAVELLING BLOCK,OIL WELL DRILLING,CRUSHED,FALLING OBJECT
Event description
DRILL RIG TWO-BLOCKED; TRAVELLING BLOCK FELL TO RIG FLOOR
Investigation abstract
THE DRILLER WENT TOO HIGH WITH THE TRAVELLING BLOCK, CAUSING IT TO HIT THE CROWN D ONLY FACIAL CUTS AND BRUISES. ONE OTHER EMPLOYEE RECEIVED MINOR CUTS AND BRUIS ES AS HE WAS COMING DOWN THE DERRICK. BLOCK (TWO-BLOCKING). THE TWO-BLOCKING CAUSED THE WIRE ROPE TO BREAK, ALLOWING THE TRAVELLING BLOCK TO FALL TO THE RIG FLOOR. THE TRAVELLING BLOCK BOUNCED, KNO CKING THE DOGHOUSE OFF THE DRILL FLOOR TO THE GROUND LEVEL 15 FEET BELOW. EMPLOY EE #1 WAS KILLED WHEN HE WAS EITHER STRUCK BY THE TRAVELLING BLOCK OR WAS THROWN AGAINST THE DOGHOUSE. EMPLOYEE #2 WAS EITHER THROWN OVER THE DOGHOUSE OR FELL F ROM A STAIRWAY AS HE WAS ATTEMPTING TO GET CLEAR OF THE TRAVELLING BLOCK. HE FEL L TO THE GROUND LEVEL AND WAS CRUSHED BY THE DOGHOUSE, WHICH FELL ON TOP OF HIM. THREE OTHER EMPLOYEES WERE INSIDE THE DOGHOUSE WHEN IT WAS STRUCK. THEY RECEIVE
Victims (6)
-
#1 Fatality Age 31 M
- Nature of injury
- 18
- Part of body
- 1
- Event type
- 2
- Source
- 8
- Occupation code
- 999
- Human factor
- 1
- Environmental factor
- 5
- Task assigned
- 1
-
#2 Fatality Age 26 M
- Nature of injury
- 7
- Part of body
- 13
- Event type
- 1
- Source
- 24
- Occupation code
- 999
- Human factor
- 1
- Environmental factor
- 6
- Task assigned
- 1
-
#3 Non-hospitalized injury Age 27 M
- Nature of injury
- 3
- Part of body
- 2
- Event type
- 6
- Source
- 8
- Occupation code
- 999
- Human factor
- 1
- Environmental factor
- 18
- Task assigned
- 1
-
#4 Non-hospitalized injury Age 41 M
- Nature of injury
- 7
- Part of body
- 9
- Event type
- 6
- Source
- 8
- Occupation code
- 999
- Human factor
- 1
- Environmental factor
- 6
- Task assigned
- 1
-
#5 Non-hospitalized injury Age 51 M
- Nature of injury
- 7
- Part of body
- 9
- Event type
- 6
- Source
- 8
- Occupation code
- 999
- Human factor
- 1
- Environmental factor
- 6
- Task assigned
- 1
-
#6 Non-hospitalized injury Age 41 M
- Nature of injury
- 7
- Part of body
- 9
- Event type
- 6
- Source
- 8
- Occupation code
- 999
- Human factor
- 1
- Environmental factor
- 6
- Task assigned
- 2
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.