“Poisoned”. But after 90 minutes on the ground the flight departed with the five rapidly unpoisoned f/a’s. An hour is a standard divert ground interrupt. Ninety minutes, in Greenland, is quick work.
I recall reading "Air Clues"years ago that exposure to synthetic oil fumes could cause nausea and suicdal tendencies. We found that fumes entered the air conditioning system via worn and incompletly pressurised labyrinth seals,so avoided prolonged peiods of idling,by icreasing revs by 200 or so.