Mount Galunggung is an active stratovolcano in West Java. It had its last major eruption in 1982, when ash plumes reached 20 km.
Sierra Leone 2017
Boeing 747-236B(M), Galunggung eruption in 1982.
(perforated and imperforated)
The stamp was issued in the series "Volcanic Eruptions".
On 24 June 1982, a Boeing 747 flew through Galunggung's undetected ash plume, which caused all four engines to fail. Fortunately, the engines could be restarted after the plane had lost 25,000 ft and came into denser air, and the crew managed a successful emergency landing, saving the lives of 263 people.