ABNORMAL
PROCEDURES
AIRPLANE
FLIGHT
4-18 ANAC APPROVED
Page 10 code 01 REVISION 1
FMS POSITION DISAGREE
Do not use FMS as navigation source.
FMS 1 (2)-GPS POSITION DISAGREE
If the aircraft is equipped with dual FMS, select another FMS source.
If the aircraft is equipped with single FMS, select another navigation
source.
GROUND PROXIMITY FAILURE
Increase awareness in relation to ground proximity.
IRS EXCESSIVE MOTION
Stop the airplane until the alignment is completed.
IRS 1 (2) FAILURE
Revert the affected IRS.
MCDU 1 (2) OVERHEAT
(PRE-MOD. SB 190-31-0007)
Pull the ass
ociated circuit breaker.
For MCDU 1 OVHT, pull the B16 CB.
For MCDU 2 OVHT, pull the B31 CB.
MFD 1 (2) FAULT
Crosscheck the affected MFD display information (System Synoptic,
MAP, TAS, TA
T, SAT, TCAS info, WX radar and Terrain Data) with the
opposite side MFD display information. Disregard any non reliable
information from the affected MFD.