# HANDLING OF MATERIALS
> MSHA accident `220171860002` · 06/21/2017 · Clas Coal Company Inc. 
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** HANDLING OF MATERIALS
- **Accident type:** Over-exertion in pulling or pushing objects
- **Occupation:** Master mechanic, Foreman, Supervisor
- **Activity:** Handling supplies or material
- **Injury source:** DOORS,INCL UG VENTILATION
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** BACK (MUSCLES/SPINE/S-CORD/TAILBONE)
- **Days lost:** 5
- **Mine experience:** 4.96 years
## Operator
- **Controller:** William Ridley  Elkins Jr
- **Operator:** Clas Coal Company Inc. 
- **Mine:** [1519325](https://api.ai-analytics.org/mine/1519325)
## Narrative

The employee was physically pushing ½ of a 16 foot airlock door to open it when severe pain occurred in their lower back area. The metal airlock doors are located at 12 crosscuts, inby the no. 5 return air portal and separate the main intake and return air courses. The doors are 16 ft. wide. A lot of air pressure is present at this location. 

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