However due to an oversight the building was installed backwards and is shaped like a '2'.

This, combined with the fact that his light fixture was installed backwards, and his bad wiring electrocutes Andrew, causes him to fail.

They are like exaggerated goblins, grotesque monsters with some of their limbs installed backwards.

Don't worry; the plug is polarized so it cannot be installed backwards.

The failure was traced to a technician who had accidentally installed the wiring for the guidance system backwards, causing pitch signals to be transmitted to roll and vice-versa.

The Genesis spacecraft's accelerometer was installed backwards, which caused the spacecraft to malfunction upon re-entry to Earth's atmosphere.

When they came to break the stem apart they found that a vice built into the Rover for the purpose had been installed backwards.

An investigation found that a non-return valve in the fuel system had been installed backwards, causing two of the engines to be starved of fuel.

It's not installed backwards, is it?

Discovered by a 25 year-old engineer prior to initial criticality, earthquake supports for nuclear piping had been installed backwards.