We often come across vehicle breakdown repairs along the shoulder of roads. It could be as a result of flat tyres, bad brakes , bad fuel pumps etc
A medical related accident occurred when a vehicle fell off a JACK into a mechanic working beneath. This was as a result of no use of JACK STAND

DESCRIPTION OF ACCIDENT
A driver travelling along one of the major highways in Nigeria, noticed some malfunctions in his vehicle. He pulled over at the road shoulder. We are aware of how narrow our highways are, coupled with the high usage of heavy duty trucks plying the highways. The driver sent for a mechanic, who after troubleshooting, found out the primary fuel pump had developed defects. Mechanic was under the vehicle to remove the bad fuel pump, he had already lifted the car with hydraulic jack but there was no support with a JACK STAND.

With the regular movement of motorists along the highway, it poses a significant danger to which both of them were not aware of. This vehicular movements kept generating wind that made the repaired car tilt off the JACK gradually. When a heavy truck sped past them, it generates a heavier wind that eventually made the repaired vehicle fall off JACK unto the mechanic who was under the vehicle. This resulted to a spinal cord damage to the mechanic


What should have been done

• Vehicle should have been taken to a safer area off the highway for repairs
• If vehicle should be repaired along the highway, caution and slow down sign can be put to signal other road users, if it requires to be lifted, a JACK STAND should have been used. A thick log of wood can also serve as a JACK STAND, as well as old rims
• A passerby should have intervened

CONCLUSION

If you should have to lift your vehicle’s at home, along the road or garage, endeavour to use a JACK STAND to act as a fall barrier

http://www.letslivesafe.com/car-falls-on-a-mechanic/