The Greek Air Traffic Safety Electronic Engineers Association called a three-hour “warning work stoppage” for Thursday to protest staff and equipment shortages. The work stoppage has been called from 1:00 pm to 4:00 pm on April 30. The safety engineers service, part of the Hellenic Civil Aviation Authority (YPA), expressed its concern over safety issues related to the increased summer passenger traffic because of “significant delays in upgrading and modernizing the VAR and PALLAS air navigation systems” and staff shortages, especially substitute and standby staff units. (source: ana-mpa)