Who is the posek that gives the hetar for a dead person on a airplane with a box around the casket aron betoch aron?
Answer:
I don’t know of this method or of poskim that mention it.
There are some authorities who discuss using an aron that is made of a material that is not mekabel tumah (a type of plastic), and leaving a gap of a tefach from the mes to the top of the aron, which some airlines apparently began to use.
Some dispute the validity of this solution due to the problem of sof ha-tumah latzeis, and due to the fact that the aron is lying on a surface that is mekabel tumah (if we assume that aluminium is mekabel tumah).
Best wishes.
