"Crash and Yearn" is an orchestral piece on the Season 5 soundtrack. Parts play when Ajira Flight 316 lands on the Island, but most of the piece does not play in the show.
Ajira Flight 316 experiences a flash of white light. When the light fades, the plane is headed towards a mountain. Frank Lapidus and his co-pilot take action and see a runway in the distance. The plane lands on the Island.
"Crash and Yearn" plays on the phrase "Crash and Burn". The plane crash lands on Hydra Island.