MY FATHER AGE 81 WAS INVOLVED IN A CRASH ON 1-20-07 IN WICH HE IMPACTED THE REAR OF A SEMI TRACTOR TRAILOR COMBO@ APPROX. 40 MPH. THE TRAILOR HAD A BAR/BUMPER EXTENDING ACROSS THE BACK AND DOWN, AND THE IMPACT WAS 18-24 INCHES OFF THE GROUND.THE AIRBAG SYSTEM DID NOT DEPLOY,RESULTING IN MULTIPLE INJURIES TO THE HEAD AND FACIAL AREAS. *JB