A Quantas Boeing 747 jumbo jet was required to make to make an emergency descent on Friday while enroute from London to Melbourne.  While cruising a 29,000 feet an explosive bang rocked the jumbo jet. Oxygen masks fell from the ceiling while the jet descended rapidly to a safe altitude.

There were no injuries and an official of the U.S. Transportation Security Administration said initial reports indicated no link to terrorism.

To see video of the incident click here.