OPERATOR’S MANUAL
CMA-9000 FLIGHT MANAGEMENT SYSTEM
SYSTEM ALERT
MESSAGE
DESCRIPTION
ACTION
INDEPENDENT OP
In a dual/triple-FMS installation, the
identified FMS is now operating
independently of the off-side FMS(s),
because of at least one of the following
reasons:
• Independent mode manually
requested on SETUP 1/1
page.
• An inter-FMS communication
failure has occurred.
• The Operational Software
programs are not the same in
all FMSs.
• The active navigation
database is not the same in all
FMSs.
• The FMSs have been in a
different phase of flight for
more than five seconds.
• The FMSs have been using a
different navigation sensor for
more than 10 seconds.
• The user databases are
different.
• The performance database is
not the same in all FMSs. This
is only applicable if VNAV
function is configured
• The policy file is not the same
in all FMSs. This is only
applicable if VNAV function is
configured
Any automatically synchronized item listed in
Section 3-5 of the Operator’s Manual,
dual/triple-FMS Operations, must be now
performed independently on each FMS.
Clear message.
• Refer to MESSAGE RECALL and/or MAINT
MESSAGE page(s) for more details. Advise
maintenance.
• Verify Op Program on IDENT 1/1 page and
advise maintenance if different.
• Verify active navigation database on IDENT
1/1 page, select appropriate database if
possible, otherwise advise maintenance.
• Verify consistency of altitude input of each
FMS.
• Verify active performance database (Aircraft
& Engine type) on IDENT 2/2 page.
• Verify active policy file on IDENT 2/2 page.
INSUFFICIENT FUEL
In the active flight plan, the FMS
reports that the calculated amount of
the remaining fuel at destination is less
then the reserve fuel amount.
Update the lateral and/or vertical flight plan to
shorten the route or fly at slower speeds.
Otherwise, take appropriate action to land with
sufficient fuel reserve.
IRS1 ALIGN FAIL
IRS2 ALIGN FAIL
IRS3 ALIGN FAIL
IRS reports alignment failure.
LTN-92: Ensure that entered position meets
LTN-92 latitude check and 3+3T check. Retry
IRS initialization on POS INIT page.
Others: Ensure that entered position meets
Reasonableness Test and System Performance
Test. Retry IRS initialization on POS INIT page.
IRS1 CHECK
ACCURACY
IRS2 CHECK
ACCURACY
IRS3 CHECK
ACCURACY
IRS reports that some of its navigation
parameters may have become
unreliable.
Or
FMS determined that IRS inertial
position drift exceeds 3+3T nm, where T
is the IRS Time in Nav in hours.
Message enabled for ADIRS interfaces.
Move appropriate IRS Mode Selector Unit to
ATTitude position.
If attitude data of INS/IRS seems unreliable,
switch this INS/IRS to OFF.
IRS1 ENTER HEADING
IRS2 ENTER HEADING
IRS3 ENTER HEADING
In Attitude mode, magnetic heading
must be manually updated.
Message enabled for ADIRS interface.
Magnetic heading must be manually entered in
SET IRS HDG field of POS INIT ½ page every
15 minutes.
Page E-8
August 17, 2010
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