Definition of motorvehicle ???

Very Diferent question.  IN my opinion It does not come under MV act.

Motor accidents tribunal has jurisdiction only with regard to cases involving motor vehicles. This is a case of avoidable accident while on duty. It may go under Workmen's Compensation Act or other laws. The owner of the aircraft or the employer of the two will also be liable.

An aircraft is not a motor vehicle. Why! even a pay loader or a crane used in industries is not a motor vehicle either, unless it has to move on public road.