The short circuit occurred in the airport's block-type thermal power station supply line.
Suspension of flight operations required due to European regulations
The European Aviation Safety Agency (EASA) requires two independently powered electricity supply systems for flight operations areas. With the public electricity network and its own block-type thermal power station, the airport fulfills this requirement. "Within our own power station there are more generators than are required, thereby providing us with a backup solution. The short circuit, however, hit in the heart of the power station, taking the facility completely out of service, so that only one supply was available for the runway system," explained Michael Eggenschwiler, CEO of Hamburg Airport.
After the airport's engineers located the cause of the short, 42 cables with a total length of 540 meters were replaced. This meant that the block-type thermal power station was operating stably again from 3 a.m.
"We greatly regret the inconvenience for passengers and airlines and fully appreciate the consequences. This was an extreme situation for passengers, airlines and the airport," says Michael Eggenschwiler.