Mt Merupi
I suspect QANTAS second emergency in two days is a pure coincidence. However, hope that the proximity or Mount Merupi to the South is not having an adverse affect in the upper atmosphere.
Whilst evidence of damage to aircraft engines caused by volcanic dust from Iceland earlier this year was limited, the BA Speedbird9 incident in 1982 occurred when the aircraft flew into a cloud of ash from Mt Galunggung to the South east of Jakarta.
The A380 was southbound and apparently had just returned to service after maintenance in Germany. What was the routing for 744?