27kgs of coke go unnoticed in a small aircraft , I am not the greatest pilot in the world but I would like to think my walkround and pre flight might uncover such stowaways , and as far as I am aware not many drug dealers are in the habit of putting drugs on aircraft that dont belong to them and let them travel unsupervised to locations unknown , they are drug dealers but they are not stupid , hence the pilots in question being locked up and not the Mr Big who will reap the major benefits of 27kgs