Airbus-320 TakeOff Light TBS. Unusual loud sound.

Поиск дефекта во взлётной фаре Airbus-320. Необычный громкий звук при работе.

[@hotshot4512]

To me it maybe sounds like the mech horn, but I might be wrong.

[@Lx-photos]

This was a short circuit between light transformer coil layers.

[@rkan2]

400Hz? sounds a bit higher

[@Lx-photos]

Needs a tonometer.