An oxygen cylinder which exploded in the cargo hold of a Qantas flight could have been the reason for the 3m hole which forced it to make an emergency landing.
Reports claim one canister was missing from the cargo hold of the aircraft and Qantas has been asked by safety inspectors to inspect all canisters carried on its 747 fleet.
Qantas flight QF30 made an emergency descent of around 20,000ft after a hole was torn in the body of the aircraft on July 25, causing a sudden loss of cabin pressure. The flight landed in Manila at around 11.15am local time.
No one was reported injured.