Please check if the usage of "in" or "at" is correct?
1) The cargo is discharging at Jeddah.
2) Your ship will be berthing at Berth no. 30 soonest she arrives in Jeddah.
Is that correct? I have never seen "soonest" with that meaning.soonest she arrives in Jeddah.
I would have said "as soon as she arrives in Jeddah".
But... "soonest" used to be used in telegrams, before there was e-mail or SMS, or the more recent abbreviation 'asap' - "Seasonal figures require attention soonest". From being a telegraphese adverb, "soonest" started being used as an attributive adjective meaning "earliest": "The seasonal figures require your soonest attention". This sort of rather archaic business-speak seems to have lasted longer in some parts of the world (India, for example); 'as soonest she arrives in Jeddah' is still wrong, but the persistence of this archaic usage of "soonest" might explain why 'as soon as' was misheard.