Cellphones interfere with the airplane's electronic systems
The fact that everybody can use their cellphones in airplane mode during takeoff and landing now pretty much seems to have put this question to rest, right? And Smith agrees, the answer is probably no, wireless transmission from cellphones doesn't interfere, but the FAA would still rather play it safe than sorry.
The airplane’s electronic systems are heavily shielded, but if the shielding is old or the system is faulty, there could be a problem. Then again, if it was of bigger concern, cabin crew would inspect or collect phones before take off, considering how many of them are left on during flights. "If this really was a recipe for disaster, I think we’d know about it by now," Smith says.
Planes have an onboard corpse locker in case somebody dies in flight
Myth? Urban legend? Actually, it was true for a while -- but only on Singapore Airlines' fleet of A340-500 airplanes that flew between Singapore and Newark until 2013. Those planes did, in fact, have a corpse compartment. But they're now out of service, and no other commercial carrier flies planes with those lockers. That said, if you're wondering what does happen when somebody dies on a plane, you'd probably be pretty surprised/mortified.