OSHA Accident Investigation · Summary #630095
UNSECURED,BLOCKS,CRANE BOOM,WORK RULES,CONSTRUCTION,CRUSHED,FALLING OBJECT
Event description
Employee killed when crushed by falling crane boom
Investigation abstract
Employee #1 and two coworkers were attempting to shorten the boom of a crane by removing the last full section near the tip section. The boom was lowered to app roximately 5 ft above the concrete surface. The employees were working directly under the unsupported boom. No blocking or cribbing was used. The employees remo ved the lower right pin first. When they removed the second pin, the tip section jackknifed upward and the last boom section dropped onto Employee #1, crushing him. He was killed.
Victim
-
#1 Fatality Age 38 M
- Nature of injury
- 21
- Part of body
- 13
- Event type
- 1
- Source
- 27
- Occupation code
- 999
- Human factor
- 4
- Environmental factor
- 8
- 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.