Statistics about accidents and incidents show that “maintenance error” is one of the main contributory factors. People are the most important, flexible and adaptable values in aviation but, at the same time, people are vulnerable and their capacities can be strongly decreased under the wrong environment. Knowledge of human factors in aviation has been redefined to include maintenance after a first approach aimed to flight-crew environment.
Nowadays, available information about the subject allow operators and maintenance organizations to define and implement policies helping to decrease error proneness in maintenance..
Regarding maintenance, some studies identify three kind of errors as the most frequent:
Contributory Factors for these errors:
Regarding the former points, Part. 145 introduces many conditions which require implementation of safety policies and adoption of practices linked with Human Factors.