On planning cost-efficient and flexible aircraft maintenance operations: Technician shift scheduling and task assignment over multiple bases

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dc.catalogadorjwg
dc.contributor.authorSanhueza, José Ignacio
dc.contributor.authorDelgado Aguilera, Felipe Andres
dc.contributor.authorKlapp Belmar, Mathias Alberto
dc.date.accessioned2026-02-05T20:15:23Z
dc.date.available2026-02-05T20:15:23Z
dc.date.issued2026
dc.description.abstractAirlines often outsource aircraft maintenance to third-party providers. As maintenance demand fluctuates, providers must dynamically plan in-house technician schedules, assign tasks to individual technicians, and determine when to rely on external resources, such as on-call shifts or outsourced work. We study how a maintenance provider should decide where (i.e., at which base), when (i.e., within each aircraft’s ground-time window), and by whom (i.e., which in-house technician) to perform each job to make an efficient use of resources and minimize external costs. We model this problem as an integer program and solve it via a Price-and-Branch heuristic with customized pricing models that identify profitable technician work patterns. We present several pricing model variants to explore different forms of technician labor flexibility, including multi-skilling, temporal flexibility (i.e., assigning different shift start times to technicians across workdays), and spatial flexibility (i.e., relocating technicians among maintenance bases). Using data from a maintenance provider, we quantify the potential cost savings associated with each source of labor flexibility. Compared to a base case, multi-skilled technicians offer the most significant cost reductions (48.5%), while the independent use of spatial and temporal flexibilities yields average reductions of 13% and 15%, respectively. Moreover, we observe that most benefits can be achieved with only a fraction of multi-skilled technicians. Overall, our approach obtains a potential cost reduction between 78% and 93%, when compared to a heuristic method that emulates a common practice of maintenance planners.
dc.format.extent15 páginas
dc.fuente.origenORCID
dc.identifier.doi10.1016/j.cie.2026.111801
dc.identifier.doi10.1016/j.cie.2026.111801
dc.identifier.issn0360-8352
dc.identifier.urihttps://doi.org/10.1016/j.cie.2026.111801
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/107979
dc.information.autorucEscuela de Ingeniería; Delgado Breinbauer, Felipe Alberto; 0000-0003-0861-1634; 120137
dc.information.autorucEscuela de Ingeniería; Delgado Aguilera Felipe Andres; S/I; 1270568
dc.information.autorucEscuela de Ingeniería; Klapp Belmar, Mathias Alberto; 0000-0002-0218-2392; 140981
dc.language.isoen
dc.nota.accesocontenido parcial
dc.rightsacceso restringido
dc.subjectAircraft maintenance planning
dc.subjectTask scheduling
dc.subjectShift scheduling
dc.subject.ddc629
dc.titleOn planning cost-efficient and flexible aircraft maintenance operations: Technician shift scheduling and task assignment over multiple bases
dc.typeartículo
dc.volumen214
sipa.codpersvinculados120137
sipa.codpersvinculados1270568
sipa.codpersvinculados140981
sipa.trazabilidadORCID;2026-01-26
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