11. Flight Management/Navigation Flashcards
Recall key components of the Multifunction Control and Display Unit (MCDU)
Light Sensor
Senses ambient light and automatically adjusts display brightness level
Message Light
Illuminates to call attention to FMS-generated messages in the scratchpad, MCDU failures, etc
Misc Keys
CLR – clears scratchpad
/ Key – used to separate data
SP Key – not used
BRT Knob
Rotate – manually adjusts brightness level of CRT
Line Select Keys
Allows entry, selection or deletion of data on an adjacent line
Alpha/Numeric Keys
Push – enters selected characters into scratchpad
Function Keys
Used to select individual pages for managing FMS data input and aircraft performance parameters
Recall how to verify the active FMS database is current
Select A/C Status page (either by automatic pop-up with power application or through the REF function key and selecting LSK 5L)
Check/Confirm current database at LSK 4L
**Note: The active database cannot be changed after engine start
Recall MCDU IRS initialization procedures
IRU Selectors – NAV
F-PLAN INIT page – Enter “FROM/TO” at LSK 1R
F-PLAN INIT page – Select “Initialize IRS” at LSK 4R
**Note: If IRUs are in align mode, the “INITIALIZE IRS” prompt changes to POS REF
Recall when FMS Speed and PROF will auto-engage if PROF is selected on the ground prior to takeoff
400’ AGL
Recall when FMS NAV will auto-engage if NAV is selected on the ground prior to takeoff
100’ AGL
Recall when to discontinue using a reduced climb thrust setting (CLB1 or CLB2) and restore normal “CLIMB POWER” during initial climbout
When aircraft climb rate decreases below 1500 fpm or 18,000, whichever occurs first
Recall important FMS considerations during a PROF descent approaching 10,000 MSL
During descent, in between 10,000 and 12,000 feet, FMS speed edits above 245 knots will not be honored due to an FMS preloaded 250 KIAS/10K restriction
As the aircraft approaches 12,000’, it will start a speed reduction to 245 kts – despite any pilot VERT REV constraints entered on the F-PLN between 10,000 and 12,000 feet.
**Example: When ATC-directed to cross a waypoint at 11,000’ and 280 knots—and even though a VERT REV is entered for the aircraft to meet that restriction–the FMS will override the VERT REV as it descends through 12,000’ and slow to 245 kts. Therefore, in this case, the pilot should take speed control away from “FMS SPEED” by pre-selecting 280 knots in the IAS window and pulling the IAS knob to hold the pilot-selected speed.
Recall the B717 features dual GPS systems
GPS 1 and GPS 2 systems each provide satellite positioning info to the aircraft VIAs
Recall the B717 features dual DME systems
Identifiers of DMEs currently providing update data to the VIAs are displayed on the MCDU NAVAID pages 2/3, 3/3
Recall the B717 features dual VOR systems
Two VOR receivers are normally tuned automatically by the VIA flight management computing function—but can be tuned manually using the MCDU NAV RAD page
If selected on the ECP, identifiers for the tuned VORs displayed on each ND