1. A method to automatically generate a maintainer useable troubleshooting tree from content of a digitally stored fault model of a complex system in real time, the method comprising: for a specific corrective action, retrieve failure modes associated with a corrective action from a fault model of the complex system by a processor; receive in symptoms in real time from sensors monitoring the complex system; generate a symptom pattern and an associated symptom hash from the received symptoms; for the symptom pattern, create an ambiguity group of failure modes from the retrieved failure modes; retrieve repair procedures and test procedures related to the ambiguity group of failure modes from the fault model; create a troubleshooting tree for the ambiguity group of failure modes by ranking each repair procedure and test procedure; retrieve technical references encountered while creating the trouble shooting tree; and compile and render the troubleshooting tree and the references into a user perceivable document based on a standard technical manual skeleton data structure configured to record the trouble shooting tree and the references.