Date: 201811
Local time of day: 0001-0600
Location: ZZZ.Airport, US
Light: Daylight
Aircraft: Commercial Fixed Wing
Operator: Air Carrier
Operating under: Part 121
Flight plan: IFR
Mission: Passenger
Flight phase: Cruise
ATC / advisory: Center ZZZ
Aircraft component: Pressurization System
Component problem: Failed
Reporter organization: Air Carrier
Reporter function: Flight Attendant (On Duty)
Reporter qualification: Flight Attendant Current
Human factors: Situational Awareness; Distraction; Physiological - Other
Anomaly: Aircraft Equipment Problem Critical; Flight Deck / Cabin / Aircraft Event Illness / Injury; Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor
Detector: Person Flight Attendant; Person Flight Crew
When detected: In-flight
Result: Air Traffic Control Issued New Clearance; Flight Crew Diverted; General Flight Cancelled / Delayed; General Physical Injury / Incapacitation
Contributing factors: Equipment / Tooling; Aircraft; Environment - Non Weather Related
Primary problem: Aircraft

Narrative: Approximately 25 minutes after takeoff the purser was informed by the Captain that there was pressurization problem with the aircraft. At that time the purser informed the cabin crew. We could feel abnormal altitude in the cabin. We felt light headed dizzy and our ears were hurting. We returned beverage carts to aft galley to stow the service items. Immediately after returning the beverage cart to the aft galley; all the oxygen masked dropped in the aircraft. Passengers and crew took oxygen. Passengers were instructed to fasten seat belts; the no smoking sign was illuminated; we continued taking oxygen until further notified by the crew. The pilots continued flying the aircraft to our divert destination which took 1 hour and 1/2 after the decompression occurred. The aircraft flew at a low altitude. The cabin was extremely hot and there a burning smell from the oxygen bottles. The Captain made an announcement to passengers that the aircraft had a pressurization issue and the flight was diverting. After the decompression passengers were uncomfortably hot; some of the passengers got the bends; and they were complaining that their ears were hurting and blocked. A passenger in the main cabin was feeling weak and overheating from the hot temperature in the cabin. I was taking bags of ice to her seat to cool down. I requested the purser to let the cockpit know we needed EMT to meet the flight due the passenger's declining health issues. When the flight arrived at the gate the ill passenger was taken off the flight first due to her condition. Upon deplaning the aircraft the sick passenger passed out in the aisle in first class. The cockpit did not declare an emergency landing; we landed and taxied to the gate like a normal. This flight was not a normal flight; we had decompression and ill passengers. The cabin crew ended up laying over and dead headed back the next morning. When we landed the next day three of the crew members went for medical attention; including myself. I believe one other crew member went for medical attention the following day. When we landed the Captain got another flight to get home that night. I am not sure as to what happened to the First Officer.




Synopsis: Flight Attendant reported the flight lost pressurization; some passengers fell ill; and the flight diverted.