Here 1982, a British Airways 747 Jumbo suffered terrible dent, and had all four engines fail as it encountered ash from an Indonesian volcano.The horizontal was able to restart selected engines sooner than making an emergency landing clothed in Jakarta.The U.S. Geological Survey says added than 80 ad aircraft encompass unexpectedly encountered volcanic ash appearing in trip and on airports appearing in the gone 15 years.Ash ingested by jet engines may perhaps be in the lead to the descent in vogue performance and engine failure, the U.