MD-11 Flight Crew Operations Manual
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FMS -
Controls and Displays
FMS.30.127
• The IRS latitude and longitude have been updated.
• The flight phase is preflight.
ALT ERROR AT XXXXXX - Altitude constraint cannot be met. XXXXXXX is
constrained waypoint name.
ALTN F-PLN CLEARED - When an attempt is made to add a guidance leg to the
primary or alternate flight plans, but no memory is available, then the secondary
flight plans are sacrificed for space. When an attempt is made to add a guidance
leg to the primary flight plan, but no memory is available and the secondary flight
plans have already been sacrificed, then the alternate flight plan is sacrificed and
this message is displayed.
ATTITUDE OUT OF RANGE - Attitude of the aircraft is outside of 0 to +2
degrees pitch or plus/minus 1 degree roll when an entry is attempted on the FUEL
DIPSTICK page.
BLOCK OUT OF RANGE - A crew entry has caused the calculated BLOCK fuel
weight to become less than minimum acceptable BLOCK or greater than
maximum acceptable BLOCK.
BUSY-WAIT FOR READY - A downlink has been attempted while the ACARS
MU-FMS interface was busy.
BUTTON PUSH IGNORED - MCDU LSK push attempted during or just after
predicted profile point data appears on the F-PLN page.
CANCELLING OFFSET - When the aircraft is flying an offset and the next leg
is incompatible for an offset, the aircraft will leave the offset and capture the
active leg just before sequencing. At this time the offset is canceled and the
message appears.
CHECK ALT CSTR - XXXXXXX - Conflicting constraint is entered.
XXXXXXX is waypoint name. Appears if one of the following conditions is met:
• An at-or-below climb constraint follows an at-or-above climb constraint
and the altitude of the at-or-below constraint is less than that of the
at-or-above.
• An at-or-above descent constraint follows an at-or-below descent
constraint and the altitude of the at-or-above constraint is greater than that
of the at-or-below.
• A cruise constraint follows a cruise constraint with greater altitude.
CHECK ALTITUDES - An altitude conflict exists as follows:
• In climb, if FCP clearance altitude is set below the aircraft.
• In cruise, if FCP clearance altitude is set below aircraft during a step
climb.
• In descent, if FCP clearance altitude is set above the aircraft.
CHECK BALLAST FUEL - There is a valid ballast fuel and a transition to
preflight phase occurs.
October 02, 2006
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