11 - Navigation, FMC Flashcards
If during preflight you happen to move the IRS selected to ATT, what do you have to do in order to get normal IRS function back.
Turn it to off, wait until the ALIGN light goes away, then set back to NAV
Where do you enter the present position for the IRS during preflight
POS INIT
During recall, the GPS light + master caution and IRS on the systems panel show up, but goes away during master recall reset. What has happened
One GPS unit has failed
The lower DU shows what when you press SYS
Hydraulic pressure and quantity
Where can you see groundspeed on the CDU
POS REF page 2
If the ON DC light illuminates for an IRS, where does it draw power?
The switched hot battery bus
When the FMC alerts OVERSPEED DISCONNECT during a VNAV PATH descent, what has happened
Speed has increased to more than 15 knots above the speed restriction (usually 250 <10,000)
If GROSS WT is not available from the FMC, what will the approach page look like
Box prompts
To see position data from both GPS units, which page do you select
POS REF page 2/3
What information are you left with if you move the IRS switch to ATT
Position and Heading only
When will you get the alert RESET MCP ALT on the scratchpad
If within 5 miles of the TOD and no lower altitude selected on the MCP
What has happened, and what must you do if the scratchpad message VERIFY GW AND FUEL appears
The FMC are no longer getting real time fuel indications, you will have to enter the fuel into the FMC manually, and will be prompted to do so every 30 minutes
Where can you select MAX ANGLE and MAX RATE climbs for the FMC
CLB page
The A/C is not certified for operations above/below which latitude?
82N 82S
What does the alert BUFFET MARGIN indicate
Your maneuver margin is currently less than specified
What does the alert INSUFFICIENT FUEL signify
That predicted fuel at destination is now less than 900kg
What is the normal power source for the Left and Right IRS
Left: AC standby bus
Right: Transfer bus 2
What is the standby power source for both IRS
Switched hot battery bus
How long will the right IRS stay powered in case of a loss of AC power
5 minutes
When do you get the alert DRAG REQUIRED
If your airspeed has increased to more than 10kts from target speed or within 5kts of Vmo/Mmo (when trying to keep a VNAV PATH)
How many navaid and airports can you store in the temp data base
40 navaids, 6 airports
On the IRS display, what do you get in the right window if you select HDG/STS
Time remaining until alignment
What provides the A/T with N1 limit values
The FMC
What happens to the RTE page if you change the nav database after the route has been entered
It will go blank, and has to be re-entered
What does the alert VERIFY POSITION mean
That position information is contradictory
A fast re-alignment takes how long?
30 seconds
What happens if you pitch until the Pitch Limit Indication (PLI) on the PFD
Stick shaker will activate
