Abdul-Majeed Marouf Ahmed Alani, 60, an American Airlines mechanic, was sentenced to three years for ‘recklessly’ tampering with an American Airlines aircraft’s navigation system at Miami International Airport in 2019. He tampered with two data modules by placing a foam-like material inside them. Alani alleged that he did this to gain some overtime work after he was unhappy about a stalled contract negotiation between a trade union and the airline. An error message appeared in the flight deck before take-off, stopping the pilot from flying the aircraft.