# FALL OF ROOF OR BACK
> MSHA accident `220072110037` · 07/24/2007 · Westmoreland San Juan Mining LLC
## Details
- **Degree of injury:** ACCIDENT ONLY
- **Classification:** FALL OF ROOF OR BACK
- **Accident type:** Accident type, without injuries
- **Occupation:** —
- **Activity:** —
- **Injury source:** —
- **Nature of injury:** —
- **Body part:** —
- **Days lost:** 0
- **Mine experience:** — years
## Operator
- **Controller:** BHP Billiton
- **Operator:** Westmoreland San Juan Mining LLC
- **Mine:** [2902170](https://api.ai-analytics.org/mine/2902170)
## Narrative

Roof material between the shield canopy and the first bolt in the pattern fell out. The material was of sufficient volume that it sloughed in around the taildrive and obstructed the walkway off the longwall face. The bolts and roof to floor support in the tailgate remained intact and the enry remained open.

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