ISLAMABAD—A Pakistani-led investigation into a fatal air crash Friday will examine regardless of whether the jet’s engines were weakened in an aborted initially landing, causing a reduction of power when the aircraft circled close to for a next landing, officials common with the probe stated.

First proof suggests the engines of the Pakistan Intercontinental Airways jet created get hold of with the runway in Karachi when the pilot tried to land without the need of landing gear deployed, the officials stated. Marks on the runway point out the engines were dragged together…