Aeronavegabilidad y MEL

A 90-minute, 4-round basic Express simulation for Spanish vocational training (Formacion Profesional), module 1437 Legislacion aeronautica of the Tecnico Superior en Mantenimiento Aeromecanico de Aviones con Motor de Turbina (Real Decreto 1445/2018), shared by the aeronautical GS titles.

The learner is Ainhoa Lafuente, a newly qualified technician in the continuing-airworthiness office of a fictional regional airline in Bilbao with four 70-seat turboprops, through 2027: the peninsula all year and the Balearic Islands in summer.

Four situations set the year's course: the winter, and how the limits are tracked (every limit by flight hours, cycles and calendar in the airworthiness software, not flown to the last hour, not brought forward) and when the heavy checks are done (the C-checks booked for the low season with their package, not when each falls due); Easter, and how the airworthiness directives are handled (assessed on the day they are published and planned into night checks) and how the parts are kept (a rotable pool and the no-go parts of the MEL at the base); the summer peak, and what is done with an air-conditioning pack reported inoperative before the first departure (deferred under its MEL item, category, procedures and interval, the part ordered) and when the line maintenance is done (night shifts with certifying engineers); and the autumn, and how the technical log is kept before the airworthiness review (true, the expired item grounding its aircraft) and how the year is accounted (a reliability account by aircraft and system, with the 2028 plan).

One critical error caps the round: an expired deferral closed and opened again with a new date. Some mistakes look fine on the day they are made and come back later through the aircraft and the parts: every task flown to its last hour, no stock with the pool in 48 hours, a valve robbed from the aircraft in the hangar.

KPIs: fleet availability, controllable maintenance cost, hours out of service from defects and spare-part stock-outs. Lesson: deferring a defect is legal only inside the MEL and within its interval. Spanish primary, English parity. Fictional company, aircraft and people; real curriculum and regulations cited.

An introductory simulation that assumes no prior knowledge of the subject, designed for undergraduate courses. It also works in vocational and high-school programmes and in onboarding sessions.