Odd question about onboard A380
greetings all,
My folks flew yesterday from LHR to SFO on a BA A380. A nice experience by all accounts.
But.....
My folks (dad retired airline captain - all Boeing) reported that during the cruise black "soot" or "ash" was ejected from the aircon system.
Apparently a pilot came down to assist and the inflight crew placed sheets over the pax and seats to protect them from anymore gunk coming out, which did not occur.
I have never flown the 380 but several decades worth of 320/330 and never heard of black "soot" coming from the aircon system?
any clues?
cheers