# SLIP OR FALL OF PERSON
> MSHA accident `220051220043` · 04/25/2005 · Teck Cominco American Inc
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Fall to the walkway or working surface
- **Occupation:** Longwall operator, Chock operator, Shear operator, Plow operator
- **Activity:** Machine maintenance
- **Injury source:** MINE FLOOR,BOTTOM,FOOTWAL
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** TRUNK, MULTIPLE PARTS
- **Days lost:** 0
- **Mine experience:** 0.23 years
## Operator
- **Controller:** Teck Resources Limited
- **Operator:** Teck Cominco American Inc
- **Mine:** [4500366](https://api.ai-analytics.org/mine/4500366)
## Narrative

TWO EMPLOYEES PLANNING TO ADVANCE UTILITIES IN A SINGLE HEADING, SHUT THE MAIN VALVE TO THE AIRLINE GOING INTO HEADING. THEY FAILED TO BLEED THE AIRLINE BEFORE REMOVING CLAMP. WHEN EE #1 REMOVED CLAMP, HEADER BURST FORWARD CAUSING EE #2 TO FALL BACKWARDS; FRACTURING ONE BACK RIB & A FEW VERTABRAE TIPS. ASSESSMENT OF INJURIES IS ONGOING.

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