Moderators: richierich, ua900, PanAm_DC10, hOMSaR
Fault Isolation Procedures
Possible Causes
This lists all the suspect items which are replaced or checked during the procedure.
The list is given to enable the collection of all items required to correct the fault and not for "shot-gun" trouble shooting. This form of trouble shooting is not recommended.
General
(1) The FIM is a tool to help you operate the airplane economically. The procedures in the FIM help you to quickly isolate the cause of each airplane fault.
(2) To isolate the cause of a fault, you can also use your knowledge from:
(a) Your past experience with airplane faults
(b) The conditions under which the fault occurred
(c) The history of faults on your airplane or your fleet.
(3) It is not a requirement to do the steps in the FIM procedure in the order shown. But if you do not plan to follow the FIM procedure exactly, make sure that you read it before you start to isolate the fault. Some FIM procedures start with important steps that have an effect on other steps later in the procedure.