当機 is read as とうき (touki) and means this plane.
とうき
touki
あたりまえ
natural
あたり
bruise (on fruit)
あて
addressed to
とうじ
at that time
とうせん
being elected
とうしょ
beginning
とうじつ
day in question
とうぶん
for a while (from now)
とうきょく
this office
とうじしゃ
person concerned
とうぜん
naturally
あてる
to expose