Method for analyzing faults present on a platform and associated system

A method for analyzing faults present on a platform (10), in particular an aircraft, including the following steps:

• (a) providing (40) a table of correspondence (60) between a plurality of observable symptoms on the platform (10) and the fault modes capable of creating each observable symptom;
• (b) measuring (42) the symptoms present on the platform (10) and selecting at least part of the measured present symptoms;
• (c) establishing (44) at least one family of faults, the establishment step comprising the following phases:
• obtaining (100), from the table of correspondence (60), a list of fault modes capable of creating, alone or in combination, all of the selected symptoms that are present;
• and, for each given fault mode of said list:
• placing (108, 110) a given fault mode in a fault family;
• grouping together (114, 116), within the same fault family as the given fault mode, all of the fault modes of said list capable of creating at least one selected present symptom in common with the given fault mode.