OSHA Accident Investigation · Summary #14510820
D B DRILLING CO RIG 22
SONORA, TX—
Event description
CRUSHED BY FALLING BLOW OUT PREVENTER
Investigation abstract
THE OIL RIG WAS JUST STARTING TO DRILL. ONE WORKER WENT BENEATH THE DRILL FLOOR TO TIGHTEN A ROTATING SEAL. THE SECOND EMPLOYEE WENT DOWN TO HAND THE FIRST EMPL OYEE A HAMMER. WITHOUT WARNING A 10,000-15,000 POUND BLOW OUT PREVENTER FELL OVE R, CRUSHING THE SECOND EMPLOYEE AGAINST THE RIG SUB-STRUCTURE. THE BOP WAS STORE D BENEATH THE RIG FLOOR, READY FOR INSTALLATION AND USE AFTER THE SURFACE CASING WAS IN PLACE. THIS IS A NORMAL PRACTICE. APPARENTLY THE CEMENT PAD ON WHICH THE BOP WAS STORED HAD AN UNEVEN FOUNDATION, ALLOWING THE PAD TO TIP AND THE BOP TO FALL.
Victim
-
#1 Fatality Age 32 M
- Nature of injury
- 3
- Part of body
- 4
- Event type
- 1
- Source
- 26
- Occupation code
- 999
- 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.