Two Qantas flights had a near-miss in Perth when a plane crossed a runway into the path of another jet commencing take off.
The Australian Transport Safety Bureau is investigating the serious incident on Saturday, which occurred after a Qantas flight from Sydney landed and nearly cut across a departing plane.
The pilot had to break hard as the other jet, travelling to Sydney, was forced to abort take-off.
An initial ATSB report said the landed aircraft was supposed to stop short at a holding point before the runway but the pilots kept going until air traffic controllers told them to break immediately.
The close shave occurred in an area known as a runway incursion "hotspot", the ATSB said.
Qantas said it will review the incident, and are assisting the ATSB with its investigation, with a final report expected in a year.
