noun, noun or participle which takes 'suru', intransitive verb
mid-air disintegration; breaking apart in mid-air
Literal sense: an aircraft, rocket, or other object breaking apart while still in the air. Often used in news reports about aviation accidents.
その飛行機は空中分解して墜落した。
The airplane broke apart in mid-air and crashed.
noun, noun or participle which takes 'suru', intransitive verb
Figurative extension: a plan, organization, or relationship suddenly falling apart or collapsing, as if disintegrating in mid-air. Often used with する.
プロジェクトは内部対立で空中分解した。
The project fell apart due to internal conflict.
彼らの結婚生活は空中分解してしまった。
Their marriage collapsed completely.