Hi all,
During last flight, at FL360 cruise, we were notified by cabin crew about a noise coming from 1R cabin door. I went to check myself. It was not an aerodynamic noise, it was not an air leaking noise. It sounded like a horn or siren
. Actually it was so loud, you could hear it in the cockpit. It stopped after a while, during the initial part of the descent. It did not stop suddenly, it kind of "faded" away. Any ideas what this could be? Anything to do with the door damper actuator?
Thanks.