I'm not sure that alone rules anything out. If we look at the flight profile of EgyptAir 990, for example, it dropped 15,000 feet in about 30 seconds: https://

I'm not sure that alone rules anything out. If we look at the flight profile of EgyptAir 990, for example, it dropped 15,000 feet in about 30 seconds: https://en.wikipedia.org/wiki/EgyptAir_Flight_990#/media/File:Msr990-ntsb-f1.jpeg https://en.wikipedia.org/wiki/EgyptAir_Flight_990#/media/Fil...