ゆう視界 しかい飛行 ひこうではありませんでした
yūshikai hikōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 有視界飛行

1. Was not a visual flight.; Did not have visual flight rules.

Past/Perfective
Negative
Polite
Formal Register
Aviation