# FALL OF FACE/RIB/PILLAR/SIDE/HIGHWALL
> MSHA accident `220073200015` · 11/07/2007 · Barrick Turquoise Ridge, Inc.
## Details
- **Degree of injury:** ACCIDENT ONLY
- **Classification:** FALL OF FACE/RIB/PILLAR/SIDE/HIGHWALL
- **Accident type:** Accident type, without injuries
- **Occupation:** —
- **Activity:** —
- **Injury source:** —
- **Nature of injury:** —
- **Body part:** —
- **Days lost:** 0
- **Mine experience:** — years
## Operator
- **Controller:** Barrick Gold Corp
- **Operator:** Barrick Turquoise Ridge, Inc.
- **Mine:** [2602286](https://api.ai-analytics.org/mine/2602286)
## Narrative

Backfill jammer operator was inadvertently undercutting nose pillar while jamming backfill; haul truck operators delivering backfill to stope were damaging ground support in high rib while backing into stope.  Combination of undercutting of low rib and ground support damage to high rib resulted in rib failure.

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