U2 singer Bono had a mid-air scare on Wednesday when the rear door of his private jet plummeted at least 15,000 feet to the ground.

The rock star and four friends were aboard the Learjet 60 traveling from Dublin to Berlin when the mishap occurred over Germany, authorities said. The plane landed safely and the two pilots only found out on the ground that the aircraft had lost its door and two suitcases from the luggage compartment.

They told investigators that they noticed a rumble similar to turbulence during a right-hand turn on approach, but that they felt no major change in how the plane was flying…

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