Well actually Sunfish was on PX005 returning from Moresby after a weeks diving in Milne bay.
We were on descent into BNE at about FL15 when the Captain announced that an F111 had closed the main runway for at least an hour. We stooged around for ten minutes while he contacted the company and then we diverted to Sydney.
A big thumbs up to Virgin Blue staff at Sydney who changed my Brisbane - Melbourne flight booking to a Sydney - Melbourne one and got me on an aircraft 20 minutes later at no charge!