A routine landing turned into a nightmare in seconds when a small plane suddenly dropped out of the sky and slammed straight into an airport hangar — killing two people instantly and leaving at least 11 others burned and fighting for recovery.

The terrifying crash unfolded Wednesday afternoon at Parafield Airport in South Australia, where witnesses say the twin-engine aircraft appeared to struggle mid-air before taking a sudden, sickening dive.

“It just pitched… then went straight down,” eyewitness Joshua Lee Swanell said, describing the moment the plane lost control. “You could hear it struggling — and then it was over in seconds.”

The aircraft smashed into the hangar with devastating force, killing the pilot and a passenger on impact. Within moments, the building erupted into flames, sending thick black smoke billowing high into the sky — visible for miles.

Inside the hangar, chaos broke out.

At least 11 people on the ground — including several student pilots — were caught in the blast zone and suffered burns. Emergency crews rushed them to nearby hospitals, splitting victims between Royal Adelaide Hospital and Lyell McEwin Hospital due to the scale of the disaster.

First responders flooded the scene just after 2:10 p.m., as fire crews battled the raging inferno and authorities locked down the entire airport. All flights were halted, with only returning aircraft allowed to land under strict control.

Nearby residents described a scene straight out of a disaster movie.

“It looked massive,” one local told radio reporters. “Fire trucks just kept coming… you could see black smoke pouring out of the hangar like something exploded.”

Within minutes, the smoke became so thick that visibility near the crash site dropped to near zero. Officials warned people in surrounding neighborhoods to stay indoors, citing potential breathing risks from the toxic plume.

Authorities are still working to determine exactly how many people were inside the hangar at the time — and what caused the aircraft to suddenly nosedive.

Investigators from the Australian Transport Safety Bureau have already launched a full-scale probe, dispatching specialists in aircraft operations, engineering, and human factors to comb through the wreckage and piece together what went wrong.

For now, the haunting question remains: what caused a routine landing to turn into a deadly freefall?