Nickola Tye filmed the horror plunge after oxygen masks dropped from the ceiling on the plane from Ibiza to Leeds.
A screeching alarm sounded and the captain told terrified passengers to “prepare for an emergency descent”.
Nickola said “all hell broke loose” as the aircraft – carrying around 180 people – then plunged towards the sea.
The 39-year-old even texted her husband to tell him she loved him for what she believed would be the final time.
She said: “I didn’t have my two young children or husband with me and all I could think was I’m not going to get to see them again.
“Because we were getting lower I was able to write a text to my husband. I said ‘the plane is dropping and the oxygen masks have dropped down, if anything happens I love you’.
“It was awful after we landed. When it’s all happening your brain goes into shock but when we landed that’s when it all hit us.