Given the erratic altitude and speed throughout the entirety of flight, and the fact the pilots radioed to turn back pretty early on, could it have been somethi

Given the erratic altitude and speed throughout the entirety of flight, and the fact the pilots radioed to turn back pretty early on, could it have been something similar to the Peruvian flight where the static ports were covered, leading to lack of basic altitude and speed data and causing a crash? (The other possibility I can think of is icing, but since Indonesia is a tropical country, and the flight never got above 5000 feet or so, I'm guessing it wasn't.) https://en.wikipedia.org/wiki/Aeroper%C3%BA_Flight_603 https://en.wikipedia.org/wiki/Aeroper%C3%BA_Flight_603