# EXPLODING VESSELS UNDER PRESSURE
> MSHA accident `220060930058` · 03/16/2006 · Knight Hawk Coal, LLC
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** EXPLODING VESSELS UNDER PRESSURE
- **Accident type:** Struck by flying object
- **Occupation:** Driller, Highwall operator, Highwall drill operator
- **Activity:** Machine maintenance
- **Injury source:** METAL,NEC(PIPE,WIRE,NAIL)
- **Nature of injury:** CONTUSN,BRUISE,INTAC SKIN
- **Body part:** UPPER EXTREMITIES, MULTIPLE
- **Days lost:** 0
- **Mine experience:** 1.62 years
## Operator
- **Controller:** James O  Bunn; Franklin D  Robertson
- **Operator:** Knight Hawk Coal, LLC
- **Mine:** [1103143](https://api.ai-analytics.org/mine/1103143)
## Narrative

Taking fitting out of tensioner (highwall miner) to bleed off pressure. Crawler was off the ground and tensioner was fully extended with grease. 90 deg. elbow FTG was turned too far & shot out because of pressure, striking right thumb & hand, bruising it severely.

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*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*