Questão jurídica principal
Whether the alarm test on 9 February 2005 constituted an accident under accident insurance law.
Decisão extraída
The event did not qualify as an accident; the unusual external factor and the required probability of injury were not established.
Fundamentação extraída
The factual circumstances remained partly unclear, but the technical noise measurements showed levels too low for a harmful acoustic event. The court accepted the SUVA expert report as persuasive.