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Thread: Weirdest Delta flight ever for me- MX delay followed by slow airspeed
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Old Jan 28, 2022 | 9:36 pm
  #8  
Raymoland
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Sounds to me like a single pack issue. Packs are airconditioning units that keep the cabin pressurized. When one is inop it restricts aircraft to lower altitudes. At lower altitudes you get lower true airspeeds and if there were higher winds as well that could account for the slower speed.
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