空中 くうちゅう分解 ぶんかいじゃなかったです
kūchūbunkaijanakattadesu

Noun
Desu Copula

The polite, past negative form of 空中分解

1. Wasn't disintegrating in the air.; Wasn't falling apart mid-air.

Past/Perfective
Negative
Polite
Casual Register