Questions are raised over how a 17-year-old boy was allegedly able to evade security at Avalon Airport and board a flight with a loaded shotgun.

A teenager who allegedly boarded a Jetstar flight armed with a shotgun has triggered a review of security at airports around Australia.

The 17-year-old is facing eight charges while a sheepshearer who stepped in to disarm him is being praised as a hero and has been offered free flights for life.

A lack of police presence at the airport meant officers had to race nine kilometres to arrest a teenager who claimed to be carrying a bomb on board a Jetstar flight.

A teenager accused of attempting to hijack a Jetstar flight allegedly declared “I’ve got bombs in my bag” before he was tackled by passengers.

Home Affairs Minister Tony Burke has initiated the audit to determine what security upgrades are necessary to prevent such incidents after a teenage alleged gunman tried to board a Jetstar flight.

Regional airports across the country, including NSW, have been ordered to undertake rapid security assessments after a teenager allegedly tried to board a Jetstar flight near Melbourne while armed with a shotgun.

Several heroic passengers were able to detain a 17-year-old boy who allegedly dressed as a maintenance worker to board a Jetstar flight at an Australian airport with a shotgun and ammunition,

Home Affairs Minister Tony Burke has directed large regional airports to conduct an urgent risk assessment following a teenager allegedly attempting to board a Jetstar flight with a gun at Avalon airport.