Originally Posted by
dixi188
When training in the USA in 1990 we were told of a procedure to leave something non standard when taxiing in to denote hijack. Not saying what in case this is still the case.
Regulators and ATC (and I assume some air carriers) in some countries still refer to this in training, or in the case of ATC, as a confidential ops memo. It's now problematic, as it seems air crew are no longer routinely taught the item. As it's no longer widely known, ATC likely would not even notice, or would not know what phraseolgy to use if they did notice. 'Nuff said