Ce glossaire est rédigé pour une utilisation dans le cadre d’une compagnie aérienne virtuelle et de la simulation de vol au sein de Virtual Air Canada Airline. Il ne constitue pas une référence en aviation réelle.
Les opérations irrégulières (IROP) désignent toute perturbation de l’horaire normal planifié des opérations d’une compagnie aérienne. Les IROP sont déclenchées par des événements en dehors du plan opérationnel standard, incluant les conditions météorologiques sévères aux aéroports d’origine ou de destination, les problèmes mécaniques nécessitant une substitution d’aéronef ou une libération de maintenance retardée, les retards de contrôle aérien et les arrêts au sol, les limitations de temps de service de l’équipage, les incidents de sécurité et les déroutements médicaux. Durant un événement IROP, les compagnies aériennes activent des procédures de récupération qui impliquent la coordination entre les centres de contrôle des opérations, les régulateurs, la maintenance, les agents de porte et la planification des équipages pour minimiser l’impact en aval sur les passagers et l’équipement.La gravité d’un IROP peut aller d’un retard mineur d’un seul vol à une perturbation à l’échelle du réseau affectant des centaines de vols - comme cela peut survenir lors d’une tempête hivernale majeure ou de la fermeture d’un hub. Les compagnies aériennes mesurent la gravité des IROP en utilisant des métriques comme les minutes de retard par départ, les passagers en correspondance manquée et le nombre d’aéronefs hors position. La planification de récupération des IROP doit tenir compte de la légalité de l’équipage selon les réglementations aéronautiques, des exigences de maintenance des aéronefs et des restrictions de créneaux aux aéroports congestionnés. La prise de décision efficace du dispatch et du contrôle des opérations durant les IROP est une compétence critique, et de nombreuses compagnies aériennes forment spécifiquement aux scénarios IROP durant les certifications des régulateurs et des opérations.
Dans les opérations de la compagnie aérienne virtuelle
Dans les opérations de compagnie aérienne virtuelle, les IROP sont moins courants puisque les vols en simulateur ne sont pas liés aux contraintes de réseau du monde réel. Cependant, comprendre les IROP est précieux pour les équipages de Virtual Air Canada Airline qui volent sur des réseaux en ligne ou participent à des événements organisés, où les déroutements météo, les attentes ATC et les sélections d’aéroports de dégagement peuvent simuler des conditions IROP réelles. Savoir comment gérer un déroutement, déclarer un dégagement ou gérer une attente prolongée reflète une conscience authentique des opérations aériennes.
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