Longest glide by a jumbo jet caused by volcanic ash

British Airways flight 9 was a London-to-Auckland scheduled flight, which, on 24 June 1982 was flown by the Boeing 747-236B City of Edinburgh, under the command of Captain John Moody (UK). While over the Indian Ocean south of Java the aircraft encountered an ash cloud from the erupting stratovolcano of Mount Galunggung, Java. The crew first noticed an effect resembling St Elmos’ Fire on the aircraft’s windscreen and within minutes engine number 4 flamed out, shortly followed by the three other engines. The crew realized that from their current altitude of 11,000 m, they would be able to glide the 747 for 23 minutes and 169 km before crashing and they decided to ditch in the ocean as a last resort. As the aircraft fell to 4,100 m altitude, the crew successfully restarted the engines and landed the plane without casualties at Jakarta, Indonesia, having glided for around 13 minutes without power. "Good evening ladies and gentlemen. This is your captain speaking. We have a small problem. All four engines have stopped. We are all doing our damnedest to get them going again. I trust you are not in too much distress." - Captain John Moody. This incident was the longest glide by a non-purpose-built aircraft overall until Air Transat Flight 236 touched down in the Azores on 24 August 2001 after losing both engines and gliding for 19 minutes unpowered. All 306 people onboard survived.