Let's see if I can re-capture your imaginations...
Abstract, with animal, vegetable and mineral connections,
This is NOT *deep breath*: A saying or phrase, fictitious, photosynthesis, connected to a specific sex or nation, involving dams, a visible phenomenon, artistic, related to ozone, anything to do with guy fawkes, an industrial process, smelting, firing a steam engine, involving salt water, rocket science, involving lead, electrolysis, the propulsion of manned spacecraft, fireworks, projectile weaponry, fuel cells, any type of balloon or a parachute jump.
However, it IS: A human concept, sort-of connected to science, involving metal, related to oxygen and heat produced by one reaction, including (but not exclusively) internal combustion, pertaining to a specific group of humans (at least one of which has artistic connections), resulting in the aforementioned metals being in contact with water, involving an oxygen-producing reaction which does not provide propulsion (and this reaction has a metal reaction vessel and does involve metals, which may be in group III of the periodic table) and importantly, this pertains to a propelled means of transport, more specifically an aeroplane.
Right, got all that? Good., because now you can have a clue:
Firstly, the cause of the second reaction (which is the main one in this case) is present in every airline safety demonstration. Secondly, there is only one specific airline and aircraft involved.