Lesson 1Types of Turboprop Engines: Core Layout, Free-Turbine vs Fixed-Shaft, Common ModelsThis covers the turboprop core layout, including compressor, combustor, and turbine sections. It compares free-turbine and fixed-shaft designs, discussing starting, control, and failure modes. It also reviews common King Air and ATR engine models and their maintenance impacts for technicians.
Components of the gas generator core and flow pathComparison of free-turbine versus fixed-shaftFunction of power turbine and reduction gearboxTypical King Air engine models and ratingsTypical ATR engine models and ratingsLesson 2Typical Twin-Turboprop Models and Reasons for SelectionThis reviews representative King Air and ATR twin-turboprop models, their roles, and performance. It explains why operators choose them, highlighting payload, range, field performance, reliability, and maintenance implications for mechanics working on these planes.
Roles and configurations of the King Air familyRoles and configurations of the ATR familyTrade-offs in performance and payloadLimits of field length and runway environmentFactors of maintenance cost and reliabilityLesson 3Propeller Systems: Constant Speed, Governor Operation, Feathering, SynchronizationThis details constant-speed propeller operation, governor components, and blade pitch control. It explains feathering, unfeathering, and synchronization systems, emphasizing rigging, leak checks, and common failure modes that affect safety during operations.
Operating modes of constant-speed propellersComponents and flow paths of propeller governorsMechanisms for feathering and unfeatheringOverspeed protection and beta rangePropeller synchronization and synchrophasingLesson 4Types of Landing Gear: Cantilever, Oleo Struts, Bogie/Truck Designs, Retraction MechanismsThis describes landing gear layouts used on King Air and ATR aircraft, including main and nose gear. It explains oleo strut operation, bogie trucks, steering, and retraction systems, with focus on inspection, servicing, and rigging checks to ensure reliability.
Overview of nose and main gear arrangementConstruction and servicing of oleo strutsBogie and truck assemblies on ATR gearRetraction actuators, locks, and uplatchesSteering systems and shimmy dampersLesson 5Maintenance Documentation for This Platform: AMM, CMM, IPC, Wiring Diagrams, SBs, ADs, LogbooksThis outlines key maintenance documents for King Air and ATR fleets, including AMM, CMM, IPC, wiring diagrams, SBs, ADs, and logbooks. It shows how mechanics use them for troubleshooting, parts selection, and compliant recordkeeping to maintain airworthiness.
Usage of Aircraft Maintenance Manual (AMM)Scope of Component Maintenance Manual (CMM)Illustrated Parts Catalog (IPC) for partsService Bulletins and Airworthiness DirectivesLogbook entries and electronic recordsLesson 6Common Instrumentation: ITT, Torque, N1/Np, Oil Pressure and Temperature SensorsThis explains primary engine and propeller instruments: ITT, torque, N1, Np, and oil parameters. It covers sensor types, signal conditioning, and cockpit displays, plus typical failure indications and troubleshooting considerations for mechanics on the job.
Interpreting ITT and temperature limitationsSystems for torque sensing and indicationMethods for N1 and Np speed measurementMonitoring of oil pressure and temperatureSymptoms of display units and wiring faultsLesson 7Airframe Structure: Wing, Fuselage Load Paths, Control Surfaces and HingesThis explores primary load paths from wing to fuselage, including spars, frames, and stringers. It details control surfaces, hinges, and actuators, emphasizing inspection points, corrosion risks, damage limits, and typical repair considerations for durability.
Load sharing in wing spars, ribs, and skinFuselage frames, stringers, and pressure shellStructure and attachment fittings of empennageDesign of primary control surfaces and hingesActuators and linkages for control surfacesLesson 8Safety, Human Factors, and Regulatory Basics for Maintenance ActionsThis introduces the regulatory framework, including FAA and EASA basics, and how they shape maintenance practices. It highlights human factors, error traps, communication, and shift turnover, linking them to safety culture and incident prevention in the workplace.
Roles of FAA, EASA, and regulatory authoritiesBasics of maintenance certification and sign-offHuman factors and common error mechanismsRisks in crew coordination and shift handoverSafety culture, reporting, and just culture principles
