Our policy will only cover theft of items during a flight if they are in your carry-on luggage and therefore under your supervision.
Items entrusted to the airline as checked in luggage for transport in the hold are not covered for theft or loss, but will be covered for accidental damage if they are in a purpose made equipment case.
If you cannot take your equipment as carry-on luggage, the airline you are travelling with may be able to offer an increased carry-on limit or an upgraded cover for theft of valuable items from checked in baggage by your paying a supplementary fee. You will, however, need to discuss these options with the airline.