About 330 flights were cancelled and more than 32,000 passengers were left stranded from Saturday morning until Sunday afternoon after a woman entered the secure area of the airport without going through security.
The entire terminal including departure lounges and its satellite terminal were evacuated, leaving thousands of passengers in the lurch. Flights remained grounded for seven hours on Saturday.
The evacuation was triggered after a 40-year-old woman slipped past security inspectors. The responsible inspector of the state-owned security company at Munich Airport was reportedly distracted by a conversation with colleagues. At that moment, the passenger passed through unchecked.
Another security guard noticed the error and asked colleagues to bring the traveler back, but she could not be located. Security officers informed a superior about 15 minutes later. The district government was then alerted who then informed the federal police.
Federal police in Bavaria said the woman had been identified after hours of unsuccessfully searching for her, and said she was unlikely to face charges. By the time the airport was cleared she was already on her plane and had managed to avoid the chaos.
Three security agents were later relieved of duties.