I was seated in Y (upper deck).
15 mins after take off, a loud siren went off on the right emex door (behind seat 79K). There was also a hissing sound (sounded like air escaping, repeat sounded).
There was a small circular clear plastic cover and there was a indicator (red/green) that went from armed to unarmed.
This siren went on for 15 mins or so before it subsided to what sounded like a hairdryer on full blast (in an enclosed bathroom) for the almost remaining duration of the flight (it started to get softer when the aircraft began descending for landing).
The FAs tried to dampen the sound by draping blankets over the entire emex but it was no good, did not get a decent wink for the entire flight, I could hear it even with IEMs when watching the AVOD.
I am not an aircraft expert so I would like to seek some opinions as none of the crew I checked with could give any useful info
15 mins after take off, a loud siren went off on the right emex door (behind seat 79K). There was also a hissing sound (sounded like air escaping, repeat sounded).
There was a small circular clear plastic cover and there was a indicator (red/green) that went from armed to unarmed.
This siren went on for 15 mins or so before it subsided to what sounded like a hairdryer on full blast (in an enclosed bathroom) for the almost remaining duration of the flight (it started to get softer when the aircraft began descending for landing).
The FAs tried to dampen the sound by draping blankets over the entire emex but it was no good, did not get a decent wink for the entire flight, I could hear it even with IEMs when watching the AVOD.
I am not an aircraft expert so I would like to seek some opinions as none of the crew I checked with could give any useful info
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