The 1948 Beechcraft Model 18 disappearance was an event in which, on 8 November 1948, an aircraft flying from Paris to London vanished over the English Channel, carrying pilot René de Narbonne, a radio operator, and six Czechoslovak ice hockey players: Zdeněk Jarkovský, Miloslav Pokorný, Vilibald Šťovík, Zdeněk Švarc, Ladislav Troják, and Karel Stibor.

Some passengers gave up their seats for the hockey players on Saturday 6 November, but due to the presence of Foreign Minister Vladimír Clementis and his entourage, the team had to be split up.

However, the team management was informed before the Saturday match that they would be forced to fly with the hockey players to London on 7 November, as all seats on the planes were already booked for the following weekdays.

Jarkovský and Švarc were still not in Paris, and defenders Šťovík and Pokorný and forwards Troják and Stibor had to wait until Monday due to visa issuance.

The six Czechoslovak hockey players and luggage were to be transported across the English Channel by the aircraft's co-owner and captain, resistance hero René de Narbonne.

The team management returned prematurely with the remaining hockey players to Czechoslovakia from the tour, which was supposed to include five more matches.

Relatives of the six missing hockey players were investigated and their lives were unpleasantly affected for years by the State Security due to this reason.