The missing plane carrying Argentinian footballer Emiliano Sala is unlikely to have been fitted with a flight recorder, according to the UK’s aviation regulator.
So-called black boxes which record flight data and cockpit audio are mandatory in airliners and business jets, and are a vital tool for crash investigators.
But they are not mandatory for light aircraft such as the US-registered Piper Malibu plane, which went missing over the Channel on Monday night.
A spokesman for the Civil Aviation Authority said the plane is “unlikely” to have been fitted with a black box.
The weight of the recorders is one of the reasons why they are not normally used by light aircraft manufacturers.
But it is a legal requirement for European aircraft to carry an emergency transmitter to aid search and rescue operations.