“Perhaps I’m wrong, but aren’t airplane freight pallets made of aluminum? To conserve weight?”
No, actually you are right on the money. The 777 uses a system of metal containers. All cargo goes into the containers. No wooden pallets are used. They would not fit and if you tried to use them it would damage the plane. Mr. GG2 used to build planes at Boeing in WA. He says zero chance wooden pallets used on that plane.
This is all a campaign of disinforation to stall for time til the powers that be figure out how to try to get that plane back from whoever took it. Its likely in Pakistan or Iran.
“zero chance” in a foreign country? I wouldn’t bet on that...what passes for reasonable in one country, isn’t in another...