This sound is from 737 Sounds

Name: Takeoff Config and Cabin altitude: Listen to this sound clip on your phone or desktop
Uploaded: 2021-02-28T04:54:57+00:00
Duration: 2 s
Description: Play and download a sound clip from 737 Sounds.

The 737 Soundboard provides some examples of cockpit sounds which are generated due to some systems behaviour of the Boeing 737 Next Generation.
Nice for study purposes or other Boeing 737 enthousiastics, this app gives you near-real sounds which are actually heard in real Boeing 737NG cockpits.

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