What is the expected duration of heavy or hangar maintenance?

The expected duration of heavy or hangar maintenance is typically 1-10 weeks. This period is necessary because heavy maintenance involves comprehensive checks and repairs on aircraft, which can include extensive inspections, replacement of parts, and significant modifications to ensure the aircraft meets safety and operational standards.

Heavy maintenance is not something that can be completed quickly; the complexity of the tasks requires more time to thoroughly assess and work on various components of the aircraft. Factors such as the aircraft's condition, the extent of repairs needed, and the workload of the maintenance facility can influence the overall duration.

Other durations do not reflect the reality of heavy maintenance timelines. Shorter durations, like less than a week or 24 hours to 3 days, are more indicative of light maintenance checks or minor repairs. Continuous maintenance year-round could pertain to general upkeep and preventative maintenance, but it does not address the concentrated and intensive work required during heavy maintenance phases. Therefore, the window of 1-10 weeks appropriately captures the expected timeframe for the rigorous tasks covered during heavy maintenance.