On November 22, 2023, the captain of Air Transat flight TS186 suffered such severe nosebleeds on the way to Punta Cana that he was no longer able to perform his duties. The passengers were lucky: another captain of the airline, who happened to be on board as a passenger, stepped in. The Airbus A330-200 took off from Toronto and at first everything looked like a completely normal vacation flight to the Dominican Republic. Suddenly, however, the captain on duty began to have severe nosebleeds, which he was only able to stop. After consulting his first officer, he declared himself no longer able to perform his duties. Another Air Transat Airbus A330-200 captain was in the passenger compartment. He was on his way on vacation. The first officer and the captain, who was restricted due to the nosebleed, asked him if he would be willing to take over as commander. He agreed and was in command from then on. In principle, it would not have been necessary to "complete" the cockpit crew, as the first officer is also a trained pilot, and for this very reason, if one of the two pilots should be absent for whatever reason, there are two pilots on duty. However, it often happens that if another pilot from the same airline with the appropriate type rating happens to be on board, he is asked for help when it is needed. In this specific situation, the first officer and captain thought it right to ask their colleague, who was actually off duty, for help.