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Case study Quintiq helps Transavia Airlines optimize maintenance planning

TRANSAVIA QUINTIQ HELPS TRANSAVIA AIRLINES OPTIMIZE MAINTENANCE PLANNING

TRANSAVIA | CASE STUDY

Company profile The business process

Transavia Airlines C.V. is an independent organization The Transavia business process is highly seasonal. within the -KLM Group. The airline operates During the summer, it is vital that the airline makes “Thanks to Ab Ovo and from its home base at Airport Schiphol, optimum use of its aircraft. Year round, it must maintain Quintiq we have a solution plus two secondary hubs (Rotterdam The Hague Airport a delicate balance between optimizing the operational and Airport) and regional airports, Transavia efficiency, necessary for competing in the low-cost that enables us to optimally provides competitively-priced air travel on a broad carrier market, and operational flexibility, which is synchronize our maintenance network of European routes. The airline operates charter required for charter and ad hoc flight operations. flights for tour operators and scheduled services for planning to the flight individual passengers. Individual passengers can make The business process of the Engineering direct bookings on a larger number of charter flights. & Maintenance (E&M) Department is designed to program, thus improving our Flight arrangements are made via tour operators, the accommodate maximum optimization of the interval interval usage by more than Internet and call centers. Transavia is moving steadily usage of maintenance tasks (i.e. optimal performance closer to becoming a web-based airline. The company of a task according to when it is due). This also optimizes 10 percent.” also operates ad hoc flights and leases aircraft to other the flexibility of aircraft availability for commercial airlines, either with or without crews and technical flights, enabling Transavia to quickly react to market – Art Van Der Hoeven, support. opportunities within the ad hoc and charter markets. Director Maintenance, Transavia

2 SUPPLY CHAIN PLANNING & OPTIMIZATION QUINTIQ HELPS TRANSAVIA AIRLINES OPTIMIZE MAINTENANCE PLANNING

TRANSAVIA | CASE STUDY

Interval usage The challenge

The performance measure for aircraft maintenance Transavia wanted to optimize its maintenance is interval usage, which indicates how efficiently planning for its -700 and 737-800 airplanes. a maintenance task is carried out in terms of when the Scheduling maintenance tasks for a fleet of aircraft “Transavia chose Ab Ovo and maintenance is due. For example, a task that needs to requires significant expertise and involves constant Quintiq for the huge flexibility be performed every four weeks can be carried out every reassessment of short and long-term plans. Tasks three weeks, generating an interval usage of 75 percent. need to be constantly reprioritized and reallocated they offered in optimizing After 12 weeks, the task will have been performed four in response to changes in fleet status, personnel maintenance planning.” times rather than the more efficient three times. The and resources availability, and flight schedules. The costs of non-optimum interval usage are significant: planning department produces a Master Schedule – Willem van Steenis, based on the Operator’s Maintenance Program (OMP) • Spare parts, which are replaced when performing and the long-term forecast. The Master Schedule Head of Aircraft Maintenance a task, have a longer life cycle. In the example, four indicates how often and for how long each aircraft replacements are carried out when only three were will need a specific kind of maintenance, enabling needed. One extra spare part is used unnecessarily. hangar and workforce capacity requirements to be • Transavia can save manpower and hangar capacity determined. In short-term planning, the upcoming 10 Additionally, the information on the performance of by performing the tasks on higher interval usages. weeks are scheduled according to the flight schedule the E&M Department (in terms of interval usage) In the example, three visits instead of four mean less and the maintenance tasks listed in the E&M Database. needs to be gathered and presented on a day-to- manpower and hangar time needed. In collaboration with the Commercial Flight Planning day basis, so both planners and management can • Less operational availability – an aircraft that department, a maintenance schedule for each individual evaluate the impact of their decisions. undergoes maintenance at more frequent intervals is aircraft needs to be designed and then verified against less available for commercial operation. hangar and workforce capacity availability.

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TRANSAVIA | CASE STUDY

The solution The results

Transavia evaluated airline-specific as well as general Initially, Transavia aimed for an interval usage improvement planning solutions before choosing the Quintiq software. of 5 percent, which would guarantee a payback period The combination of Quintiq’s solution and the business of just one year. In practice, the results far exceeded knowledge of Ab Ovo was a winner because it enabled expectations. After using the solution for just two months, Transavia to use the same information and knowledge Transavia improved interval usage by 6 percent; after one for both long-term and short-term planning processes. year, the improvement grew to more than 10 percent. In long-term planning, the Quintiq solution optimizes the maintenance program using tailor-made clustering In addition to the interval usage benefits, Transavia techniques, known as the pivot-algorithm. In short-term has enjoyed several less quantifiable, but nevertheless planning, the solution enables the planner to interact important, results: optimally with Commercial Flight Planning, facilitating the handling of constraints and providing direct insight • The airline has improved the use of its E&M database into the consequences of planning decisions. The through easier representation of the E&M information system generates management information for both • Maintenance department performance can now long and short-term planning with respect to interval be measured on a day-to-day basis, supporting usage. The software solution also includes capacity management in its decision processes planning for platform maintenance based on actual • Since the solution provides full information and is flight schedules. easily accessible, it has enabled Transavia to improve administrative task efficiency • Integration with E&M database exposed previously hidden weak points in the E&M system

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