It’s often said that the safest place to sit in a plane is at the back — and the only survivors of the recent Azerbaijan Airlines and Jeju Air crashes were in the rear of the plane. But, say safety experts,

Dozens of people have died after a passenger plane crashed with about 70 people on board in Kazakhstan, local officials say. Authorities in Azerbaijan, where the flight originated, say there were at least 30 survivors. Azerbaijan Airlines flight J2-8243 caught fire as it attempted to make an emergency landing near the Kazakh city of Aktau.

Investigators assessing the survivability of a plane crash focus on five factors: integrity of the aircraft, effectiveness of safety restraints, G-forces experienced by passengers and crew, the environment inside the aircraft and postcrash factors such as fire or smoke.

Search operations at the site of the Jeju Air plane crash concluded on Saturday, one week after the devastating accident claimed 179 lives. Officials announced that all 179 bodies have been recovered,