To measure demand and capacity for aircraft maintenance, allocate technical staff efficiently, and minimize overall downtime, you need to gather data across several categories: aircraft operations, maintenance needs, workforce management, and resource availability.
1.
Aircraft Operations Data (Demand Drivers)
These determine when and how often maintenance will be needed.
- Flight hours and flight cycles per aircraft
- Scheduled route plans (frequency, duration, utilization)
- Aircraft type and age
- Regulatory maintenance intervals (A-check, C-check, D-check, etc.)
- Unscheduled maintenance events (e.g., faults reported by pilots or systems)
2.
Maintenance Task Data
Helps define what needs to be done, and how long it takes.
- Task duration estimates (man-hours)
- Task precedence constraints (dependencies between tasks)
- Required qualifications/certifications per task
- Special tools or equipment required
- Parts and materials needed
- Task deadlines (hard or soft constraints)
3.
Technical Staff Data (Capacity)
Used for staff planning and allocation.
- Headcount by shift and location
- Staff skill levels and certifications (e.g., A&P, avionics)
- Work-hour availability per person (after accounting for leave, training, fatigue limits)
- Multi-tasking ability or crew specialization
- Labor cost per technician/crew
4.
Maintenance Facility & Resource Data
Defines physical capacity and constraints.
- Number of bays/hangar slots by aircraft size/type
- Tool and equipment availability
- Storage and handling constraints for parts
- Availability of ground support staff and systems
5.
Scheduling and Planning Data
Helps in integrating the above into schedules.
- Aircraft availability windows (downtime allowed without disrupting operations)
- Priority rules (e.g., safety-critical before cosmetic)
- Slack time between scheduled checks
- Lead times for procurement of parts/tools
- Historical delay/cancellation data due to maintenance
6.
Performance and Risk Metrics (for optimization)
Used to evaluate and improve the scheduling model.
- Total downtime per aircraft
- Turnaround time per maintenance event
- Technician utilization rate
- On-time performance (OTP) impact
- Deferred maintenance events count
- Maintenance-induced delays or cancellations
Would you like a visual summary or a data model template in Excel or diagram format for these?