That's why I posted, in the many flights, in the thousands, I've never heard a sound like that before. It was definitely outside, not any aircon or things like that.
The sound was unique to me. Just almost like a vortex sound.
Bearing in mind this is an approach to Manila in fairly poor weather, nothing spectacular, but not a nice clear day...
Last edited by Cymmon; 14th Dec 2015 at 14:46.
Reason: Brain freeze