LUV737 wrote:For what it’s worth. Unconfirmed source - There’s an screenshot from the electronic tech log doing the rounds on the inter web. The crew operating the previous sector inbound to Jakarta made an entry that they experienced unreliable airspeed on Takeoff.
Could be related but I'm not seeing how right now. Unless I've got my time zones messed up, this is the METAR from Jakarta around the time of the accident:
WIII 282330Z 16003KT 8000 SCT020 27/25 Q1010 NOSIG
That translates to winds of 3 knots, scattered clouds at 2,000 feet, visibility of 5 miles and a ceiling of at least 12,000 feet. That's VFR weather, and it was daytime.
The reason for the accidents I know of that involved things like blocked pitot tubes and ports is that the pilots didn't have any visual reference points because they were not flying in VFR conditions. This plane seems to have been. So it's hard to see how even unreliable airspeed and altitude indicators could bring down the plane. They were certainly flying fast enough not to stall based on the info we have, but not so fast as to cause the breakup of the plane. They were pretty much maintaining altitude at 5,000 feet, although whether manually or on autopilot, we don't know. (If manually, we don't know why.)
So to me, the unreliable airspeed thing doesn't really explain anything. There's at least a lot more to the story, if that actually has anything to do with it to begin with.