Inspec keywords: fatigue cracks; fault diagnosis; remaining life assessment; exponential distribution; condition monitoring; gears; hidden Markov models; helicopters

Other keywords: fatigue crack fault diagnosis; helicopter main gearbox planet carrier; hidden semiMarkov model; exponential distribution; prognostic accuracy; remaining useful life prediction

Subjects: Fracture mechanics and hardness (mechanical engineering); Inspection and quality control; Maintenance and reliability; Statistics; Mechanical components