There were a pair on climbers on the next pitch to ourselves, the female was leading and had reached a height of about 6 metres. We observed at the time that she had placed her cam badly, basically at right angles to the rock face.
She fell, the cam popped out and she hit the ground. We suspected she may have suffered a pelvic fracture so we called mountain rescue and the subsequently airlifted her to hospital. Turns out there were no fractures.