ABNORMAL
PROCEDURES
AIRPLANE
OPERATIONS
MANUAL
1-03-59
Page
16
Code
03
REVISION 40
AOM-145/1114
NAV/FLIGHT INSTRUMENTS FAILURE (Continued)
ANNUNCIATOR
/FAILURE
LOCATION ACTION
MENU INOP
(amber)
MFD
Crew awareness.
ATT:CAGE
(amber)
ISIS
Press the CAGE push button in
order to recover attitude indication.
Caging the ISIS in flight will result in
loss of attitude indication for up to 10
seconds and the amber message
ATT 10s will be presented during this
time. Until attitude indication is
available again use the primary
indication source.
TT, ALT, SPD,
M, HDG (red)
Use the primary indication source.
Errors in attitude
indication
Standby
Attitude
Instrument
Maintain a straight and leveled flight
using the primary indication source.
Wait 3 minutes. If error persists, cage
the instrument and wait 5 min.
RADIO ALTIMETER FAIL
EICAS ADVISORY: RAD ALT 1 (2) FAIL or RAD ALT FAIL
If one Radio altimeter is lost (RAD ALT 1 (2) FAIL is presented):
Automatic reversion ................................................. CONFIRM
Automatic reversion may be confirmed through the RA1 (2) amber
annunciator presented on both PFDs. In this case the CAT II logic
is assured.
If both Radio Altimeters are lost (RAD ALT FAIL is presented):
Do not perform CAT II approaches.
If already performing a CAT II approach procedure:
MISSED APPROACH Procedure ....................... PERFORM
Perform a normal MISSED APPROACH Procedure, unless the
approach is continued under visual conditions and the airplane
position and attitude assure a safe landing.
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