In the summer season, fleets are stretched thin to meet passenger demand, with line maintenance focused on keeping aircraft flying rather than addressing longer-term needs. Defects often get deferred if they don’t impact safety, and the backlog grows.
As such, the quieter skies of autumn signalanything but rest for Maintenance Repair and Overhaul (MRO) facilities. Teams must catch up on deferred work, perform heavy checks, and prepare fleets for winter operations and the next year’s summer peak.
In this transitional period, having the right aircraft maintenance management software is critical. In this article, we’ll look at how it tackles the season’s challenges.
The Autumn MRO Workload
In summer, the aviation industry operates at its peak, with aircraft flying as many cycles as possible. With tight turnarounds, line maintenance is focused on efficient checks between flights, not major repairs. And minor issues are often logged and postponed for later correction.
By September, many fleets are carrying accumulated deferrals, and components may be approaching overhaul thresholds. Autumn isn’t downtime – it’s the real maintenance season. Here are some of the tasks involved.
Heavy Maintenance (C and D Checks)
With more ground time available, fleets can undergo major scheduled inspections. A C check, required every 18 months, can take up to two weeks and up to 6,000 maintenance hours. It includes:
- Detailed airframe inspections, including structural inspections of fuselage and wings, checking for corrosion, cracks and other damage.
- Detailed interior inspections, including checking seats, seat belts, and emergency exits for proper operation.
- Inspection and testing of all operational systems, including avionics, flight control, landing gear, electrical systems and fluid levels.
- Engine inspections.
- Lubrication of all fittings and cables.
- Removal and replacement of rotables.
D checks, requiring 30,000-50,000 labour hours (every 6-10 years), can take an aircraft out of service for several months. They involve dismantling the aircraft, inspecting all systems and parts, carrying out any required repairs, and reassembling the aircraft.
Preparing for Winter Aviation Operations
As the weather gets colder, MRO providers need to prepare for the changed conditions. This includes testing battery performance since the cold can compromise battery efficiency. Fuel systems are checked to make sure they’re free of water contamination, which is more likely to occur when temperatures change. In some cases, lubricants and oils will be replaced with winter-grade versions. It’s also the time to prepare de-icing and engine pre-heating systems.
Strategic Planning for the Next Year
Maintenance managers may analyse summer data, identify recurring issues and refining long-term maintenance strategies. For example, if a certain component failed repeatedly in July, a reliability fix can be introduced before next summer. If parts shortages delayed autumn checks, procurement strategies can be adjusted.
How Aviation MRO Software Streamlines Autumn Maintenance
The best MRO software solutions offer far more than basic task tracking. The right tools align directly with autumn’s unique maintenance challenges, supporting ongoing operational excellence.
Deferral Management
Deferred tasks accumulated during summer must be organised, scheduled, and resolved. In OASES, these tasks are efficiently integrated into the maintenance schedule. Using MEL data, the system automatically generates LMC worksheets and sends them directly to the right station, ensuring crews know exactly what to action.
Engineers benefit from permission-based access to full defect histories and can drill down into the source data from a single screen.
Filters by ATA system, CFD category, date range, and other parameters make it quicker to isolate and address issues.
Efficient Heavy Check Planning
Heavy maintenance checks require synchronised planning of hangar availability, labour, and tooling. Without effective coordination and streamlined workflows, delays can occur, increasing aircraft downtime.
Advanced maintenance tracking and scheduling features give teams full visibility of all demands on their services, and absolute control over fulfilling all maintenance requirements.
Inventory Readiness
When many checks occur simultaneously, thousands of parts may be needed – and missing a single component can ground an aircraft for days.
OASES has a Material management module which automates stock control, with features for auto-reordering when stock levels are low. This keeps operators agile while preventing overstocking, reducing inventory costs. There’s also the MobileMaterial app which allows staff to manage inventory using mobile devices.
Full visibility of shortages across all locations ensures critical parts are in place when needed, keeping schedules on track and aircraft flying.
Regulatory Compliance and Safety Standards
With maintenance volumes increasing, manual compliance tracking is risky and inefficient. OASES’ Continuing Airworthiness module links aircraft records to regulatory requirements, automatically scheduling mandated work and creating audit-ready records.
Engineers and logistics teams can act on work orders in real time, accessing a unified dashboard from any device. The system also logs actions and builds a verifiable audit trail, ensuring continuous compliance.
Data-Driven Reliability Improvements
If recurring patterns around summer defects go unnoticed, organisations miss the opportunity for improvement. MRO analytics transform summer’s defect data into actionable insights. Recurring issues are flagged, and predictive models can suggest pre-emptive fixes.
Autumn MRO Metrics
Performance metrics change in autumn, with the focus on eliminating backlogs. The best aviation maintenance software provides real-time dashboards for monitoring both seasonal and year-round metrics, such as:
- MEL deferred defects per aircraft
- MEL closure vs. opening rates
- SACA inspection compliance ratio
- Scheduled Task Completion Rate (STCR)
- Parts availability metrics
- Labour utilisation
Managers can use this data to uncover the root causes of issues and adjust accordingly. For example, if defect closures are lagging, managers can see whether the root cause is parts delays, labour shortages, or planning gaps.
Cloud-Based Control
Cloud-based aircraft maintenance software brings all the moving parts of autumn maintenance into one accessible, real-time environment. Here’s why a cloud deployment makes all the difference:
- Deferred summer defects can be prioritised and tracked remotely, with updates visible across stations the moment they’re logged.
- Heavy check planning benefits from instant coordination between hangar capacity, labour, and tooling schedules, reducing downtime risks.
- Compliance becomes easier, with digital records and audit trails updated automatically and accessible from any device.
- Data is easily aggregated for analytics purposes.
Conclusion
The summer rush stresses aircraft but in autumn, balance is restored. Focusing on backlog clearance, heavy checks, and compliance means fleets stay reliable and safe throughout winter and are ready for next summer.
The right airline MRO software streamlines these tasks – through effective scheduling methods, robust inventory management, and compliance monitoring – with automation embedded in each of these areas. Meanwhile, data capture and analytics gives managers actionable insights for both the short and long-term.
To learn more about how OASES keeps maintenance operations running like clockwork in all seasons, contact us today.