Flight Attendants reported physical distress and signs of hypoxia requiring medical attention after landing. Reportedly; there was a continuous loud noise in the cabin and pressurization issues.

2022-02 · NASA ASRS report 1880596

Date: 2022-02 · Aircraft: Commercial Fixed Wing

Anomalies: aircraft-equipment-problem-critical|deviation-discrepancy-procedural-published-material-policy|deviation-discrepancy-procedural-far|flight-deck-cabin-aircraft-event-illness-injury

Synopsis

Flight Attendants reported physical distress and signs of hypoxia requiring medical attention after landing. Reportedly; there was a continuous loud noise in the cabin and pressurization issues.

Narrative

B FA (Flight Attendant) was called by our Captain before takeoff and told that there was a loud noise written in the log book; but the door seal had been checked and was fine. When I got to the aft galley after taking drink orders; above 10;000 ft.; it was VERY loud back there. I walked from door to door; but the sound seemed more like it was coming from the ceiling of the galley; not a door.While walking back to the aft galley from serving my first tray of drinks; I felt the right side of my head fill with pressure. It went all the way down into my lower right jaw. That is not normal for me during flying. I called the Captain then; and said; 'There is really something going on back here; the pressurization is hurting my head all the way into my jaw.' He said they would handle it in ZZZ. I also said; 'We don't feel safe or comfortable taking this plane back up again.' He said they would take care of it in ZZZ. That's the last we heard from or saw of him.Name was not doing well at all. She seemed disoriented and one of her eyes was bright red. I started feeling very irritable out of nowhere. One passenger came back to aft lav and vomited. Other passengers were pulling on their ears.After landing; a Mechanic came on and we tried to relay all of our information to him. We went out in the jet way; and spoke with our new set of pilots. I asked if we could give Name some O2 from the cockpit because she was having signs of hypoxia. They set her up with the O2 mask; and for several minutes she took oxygen.They told me my face and eyes were very swollen; I kept continuously trying to clear my head by holding my nose closed and blowing. It wasn't working; and my head was hurting very badly. At one point our new Captain called for EMT to come take a look at us.My blood pressure was 193 over 100 and something! I was feeling really loopy and goofy. A ZZZ supervisor came down while the EMT were there. Someone made the decision to take us to see a doctor at a hospital.The diagnosis was altitude sickness. My blood pressure was still very high; but coming down. We stayed overnight in ZZZ. Our 2 day trip turned into a 3 day trip.When flying back the next day; my head was making a lot of internal crackling noises. It seemed that the air had been trapped all that time- overnight. I was told by the ZZZ1 inflight department that if I wanted to get paid for the overnight and also the two flights home; then I would need to grieve it through the Union.You can imagine my disappointment. [A Manager] checked on us; but no one from ZZZ1 inflight ever did.

Second reporter narrative

Well we were boarding Aircraft X; Captain called me while I was in the aft galley. He let me know that the previous crew had stated there was an issue with the aft galley service door and that ZZZ2 Maintenance had checked it out. They said that everything looked fine. He also stated that the crew complained that there was still very loud noises coming from somewhere in the aft of the aircraft. Once we took off and hit about 10;000 ft. the noise started coming from somewhere in the aft galley. The noise was extremely loud the entire back of the cabin could hear it I called the Captain and let him know that the noise was worse than he was telling me. At that point I asked him if in fact it was the galley service door or if it was the entrance door because the noise seem to be coming more from the entrance door. He said he had no idea and that he would have to check the logbook. And then also asked him if he could hear the noise because it was very loud and I imagine that he could have heard it through the phone. He told me he did not hear it. At that point I went out and took drink orders; the passengers or myself could not hear each other. Everyone was using their fingers to rub their ears as if they were popping. My ears were popping constantly; also I felt like my sinuses were popping. Myself and the C Flight Attendant also called the Captain again and let him know of our symptoms. I vaguely remember passing out drinks; and felt lots of pressure in my head. There was a passenger that had been up a few times during the flight that was getting sick at the end. When we landed the Captain and First Officer exited the aircraft and didn't check on the crew or the problems that we encountered during flight.

Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.

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