What if the canopy of a parachute you not expanding fully as it fall?

If the canopy of a parachute does not expand fully during the fall, the parachute will not generate enough drag to slow the descent of the person or object attached to it. This can lead to a rapid and uncontrolled fall, significantly increasing the risk of injury or fatality upon landing. In such cases, the parachutist may have to deploy a backup parachute if available or attempt to steer towards a safer landing area. Proper pre-jump checks and maintenance of the parachute can help prevent such issues.