Embraer ERJ-190 Series (GE CF34)
ATA 05
– ATA12
B1.1. and B2
AIRPLANE GENERAL
ISSUE 1, 24 Sep 2014
FOR TRAINING PURPOSES ONLY
Page:
18
FAULT ISOLATION MANUAL (FIM)
Purpose:
Provides summarized information and procedures to isolate and
repair faults of the aircraft, in order to avoid or reduce dispatch delays
and improve the dispatch reliability. It will at all times give sensible
and practical fault diagnosis to the users of this publication.
The Fault Reporting Section of the FIM provides means to effectively
report failures of the aircraft to the maintenance crew using the
appropriate fault codes and nomenclature. By doing this,
communication time and errors are reduced and fault reporting and
fault history consistency and accuracy are increased.
The procedures in this FIM were not prepared to cover intermittent
faults. However, if you have an intermittent fault, you should search
on the FIM a troubleshooting procedure that corresponds to this
intermittent fault
and try to troubleshoot it, but only if your airline’s
policies for intermittent faults allow you to do so. If you do not solve
the fault, please contact EMBRAER Technical Support Department.
Available links: AMM, WM, AIPC.
The Fault Isolation Manual covers these faults:
CAS Messages
These are the messages displayed on the CAS message window of the
EICAS display. CAS messages are displayed on the cockpit displays to tell
the flight crew of any problem with the aircraft or any other conditions of the
aircraft. Each CAS message has a unique 8-digit fault code. The category
and color of the message are defined according to its criticality:
Warning (Red)
Caution (Amber)
Advisory (Cyan)
Status (White)
Observed Faults
Observed faults are problems that may be sensed by the flight crew or by the
ground crew and are not annunciated by the CAS. Each observed fault has
an unique 8-digit fault code.
Cabin Faults
Cabin faults are the problems or malfunctions which can occur with the
systems and equipment in the passenger cabin area. Each cabin fault has an
unique 8-digit fault code.
Maintenance Messages
Maintenance messages are those stored in the Central Maintenance
Computer (CMC), that help to find the cause of a CAS message or any other
fault. Each maintenance message has an unique 11-digit fault code.
The CMC receives fault reports from several aircraft systems. It processes
the data received and shows the applicable maintenance message on the
CMC screen on the MFD 2 or on the screen of a PC connected to the Local
Area Network (LAN). Maintenance messages can be CAS-correlated or
uncorrelated. When a CAS message is shown to the flight crew and there are
correlated maintenance messages, the CMC will show the CAS and the
correlated maintenance message(s).
The purpose of maintenance messages is to give information that help the
troubleshooting routine and are not necessarily related to the need of an
immediate maintenance action.
