# HANDLING OF MATERIALS
> MSHA accident `220021990029` · 07/08/2002 · Giant Cement Company
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** HANDLING OF MATERIALS
- **Accident type:** Struck by falling object
- **Occupation:** Motorman, Motor person, Swamper, Switchman, Locomotive operator
- **Activity:** Couple or uncouple mine car
- **Injury source:** BOILR,PRES VSL,AIR HOS,OX
- **Nature of injury:** CONTUSN,BRUISE,INTAC SKIN
- **Body part:** KNEE/PATELLA
- **Days lost:** —
- **Mine experience:** 14.34 years
## Operator
- **Controller:** Cementos Portland Valderrivas S A
- **Operator:** Giant Cement Company
- **Mine:** [3800007](https://api.ai-analytics.org/mine/3800007)
## Narrative

EMPLOYEE OPENED THE AIR SUPPLY VALVE ON A RAIL CAR BRAKE SYSTEM PRIOR TO CONNECTING THE LINES.

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