Happen to another Qantas flight in the area, QF71 - hence the theory about the high-power VHF transmission station in the area being responsible:
https://en.wikipedia.org/wiki/Naval_Communication_Station_Ha...
https://en.wikipedia.org/wiki/Naval_Communication_Station_Ha...
https://en.m.wikipedia.org/wiki/Qantas_Flight_72 See the subheading in the Final Report section