98-145168-A B-1
Appendix B
BBBB
System messages B
This appendix has the following sections:
• BITE error codes
The AVIATOR 200S system shows system messages in connected display units (e.g. MCDU)
or in the security and system log files of the CSDU when extracted in maintenance-allowed
mode.
B.1 BITE error codes
BITE error codes contain information from the AVIATOR 200S system. This information
is a result of a POST or PAST sequence or Continuous Monitoring performed by the Built-In
Test Equipment. BITE error codes and explanation is shown in the MDCU display.
B.1.1 List of BITE error codes
Fault
message
code
Fault message
subject
Failure cause Consequences on the system
FDCE type
1
1 SDU1(5RV1) Faulty SDU One or more system functions will
be significantly degraded, possibly
to the extend of being unable to
communicate with other A/C LRUs,
unable to log onto Inmarsat network
or unable to support cockpit and/or
cabin voice/data calls depending on
the failure
SATCOM
Fault
2 SDU1(5RV1) Faulty SDU One or more system functions may
suffer minor degradations,
depending on the specific failure
cause.
Loss of
AISD or
PIESD
Communi
cation
4 SDU1(5RV1) Faulty SDU Loss of all communications SATCOM
Fault
6 ANTENNA-
LOW GAIN
(46RV1)
HELGA failure, Configuration data
failure
Probable loss of all communications SATCOM
Fault
7 SCM1(78RV1) SCM failure Probable loss of all communications SATCOM
Fault
Table B-1: BITE error codes
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