Navigation Flashcards
What does the IRS ON BAT light indicated
The IRS is operating on backup power (APU hot battery bus).
When is full alignment of the IRS required?
When the time from the last full alignment to the expected arrival time is more than 18 hours (every flight).
What CDU pages are available during alternate navigation? (3 Items)
Alternate Nav LEGS
Alternate Nav PROGRESS
Alternate Nav RADIO
Can CAT be detected by weather radar?
No.
How many FMC’s are provided?
2 (L & R)
What factor determines ECON Speed?
Cost Index
What FMA vertical mode annunciation will be displayed when on the vertical path during VNAV operations? Off vertical path during VNAV operations? (2 Items)
VNAV PTH
VNAV SPD
During an approach in ‘approach logic’, and a 150’ altitude deviation is detected, FMA pitch mode will change from VNAV PTH to what?
VNAV SPD
On aircraft with a legacy FMC, when does approach logic begin? (2 Items)
When an IAF sequences, or
When the runway is the active waypoint, and the aircraft is within 25NM of the airport.
When does FMC approach logic engage? (4 Items)
During descent with flaps out of up,
First waypoint sequenced,
Aircraft within 12NM of the airport, direct to or intercept course to active waypoint and a manually entered altitude is less than 500’ AFE,
The runway or MAP is the active waypoint, and the aircraft is within 25NM of the runway.
Are there VMCG issues when applying additional thrust during an Assumed Temperature thrust takeoff?
No, because AT is not limiting, and VMCG is calculated from full engine rated thrust.
What could happen if you advance power past TO 1 or TO 2 following an engine failure?
Loss of directional control
When does the INSUFFICIENT FUEL message display.
When fuel at landing is expected to be below reserve fuel.
Can ATC monitor aircraft on the ground with the transponder in ‘STBY’?
No.
Are LNAV and VNAV available in alternate navigation?
No.
