Flight Instruments, Displays Flashcards
Explain the function of the DISPLAYS SOURCE selector
AUTO:
- allows DEU 1 to drive the captain’s outboard, captain’s inboard and upper display units while
- DEU 2 drives the first officer’s outboard, first officer’s inboard and lower display units.
- Provides automatic switching from both DEUs to one DEU in case of single DEU failure
ALL ON 1 or 2: (used on ground for MX purposes)
- selects either DEU1 or DEU 2 to drive all 6 displays
Note:
DEU - Display Electronic Unit
VOL 2 / 10.3.2
Explain the function of the DISPLAYS CONTROL PANEL select switch
NORMAL:
- Left EFIC control panel controls captain’s displays
- Right EFIS control panel controls first officer’s displays
BOTH ON 1 or 2:
- both pilots displays are set to the selected pilot’s EFIS control panel
Note: When in the NORMAL position, a DISPLAYS CONTROL PANEL annunciation illuminates below the altitude indication showing a failure of the associated EFIS control panel
EFIS - Electronic Flight Instrument System
VOL 2 / 10.3.2 & 10.1.9.3
Describe the alert associated with a DEU failure
DSPLY SOURCE (amber) on the lower left corner of the PFD
Note: if a DEU fails, the remaining DEU automatically supplies data to all six displays. A single DEU failure will continue to supply each pilot with flight instrument information from independent sources. If the displays are automatically or manually switched to a single DEU source, a “DSPLY SOURCE” annunciation illuminates on BOTH PFDs below the airspeed indicator
Note:
DEU - Display Electronic Unit
VOL 2 / 10.1.9.2
Explain what the PLI indicates
Indicates pitch limit (stick shaker activation for existing flight conditions)
Note: calculated by the SMYDs. The airplane’s fuzzy eyebrows.
PLI - Pitch Limit Indicators
VOL 2 / 10.1.4.1
Locate on the PFD, the selected MCP altitude, airspeed, heading and V/S
Commanded information is displayed in magenta on the PFD. Selected MCP speed and altitude commands are displayed on the top of the altitude and airpseed tapes. Commanded heading is displayed on the compass and the commanded vertical speed is displayed to the right of the altitude tape on a tape and pointer.
VOL 2 / 10.8.6 & 10.1.1.2 & 10.1.1.5
Explain the meaning of the Max Speed Bar (red and black barber pole) on the airspeed tape
Bottom of the bar indicates the maximum speed as limited by the lowest of the following:
- Vmo/Mmo
- landing gear placard speed
- flap placard speed
Note: that’s when the high speed clicker goes off
VOL 2 / 10.1.2.1
Explain the meaning of the Min Speed Bar (red and black barber pole) on the airspeed tape
Top of bar indicates the speed and which stick shaker occurs
VOL 2 / 10.1.2.2
Explain the meaning of the green Speed Trend Vector
Tip of the green arrow indicates predicted airspeed in the next 10 seconds based on the current airspeed and acceleration or deceleration
VOL 2 / 10.1.2.1
Explain the meaning of the Maximum Maneuver Speed Bar (amber) when flaps are not up (landing).
When flaps are not up, bottom of the bar indicates flap limit placard speed for the next NORMAL flap setting. The display logic is based on a NORMAL flap setting sequence of 1, 5, 15, 30. The bar is removed when the flap lever is moved to the landing flap selected in the APPROACH REF pafe or when the flap lever is moved to flaps 40
VOL 2 / 10.1.2.2
Explain the meaning of to Maximum Maneuver Speed Bar (amber) when the flaps are up
Bottom of the bar indicates the airspeed that provides a 1.3g maneuver margin to high speed buffet. May be displayed at high altitude with flaps up, at relatively high gross weights.
VOL 2 / 10.1.2.1
Explain the meaning of the Minimum Maneuvering Speed Bar (amber) with flaps extended
Top of bar indicates minimum maneuvering speed
VOL 2 / 10.1.2.2
Recall the speed of the single white bug (sharks tooth) during takeoff
V2+15
Note: the maneuver speed provides margin to stick shaker for an inadvertent 15 degree overshoot beyond the normal 25 degree angle of bank
VOL 2 / 10.1.2.2
Explain when the single white bug (sharks tooth) is displayed ruing approach
Single white bug is displayed after selection of VREF in the FMC
VOL 2 / 10.1.2.2
Recall the speed of the single white bug during approach
VREF+20
Note: Displayed after selection of VREF. Indicates target airspeed in the event an engine is lost during approach.
VOL 2 / 10.1.2.2
Describe the PFD Radio Altitude display
Displays current radio altitude on the bottom of the attitude indicator:
- Displays below 2500 ft AGL
- Box highlighted white for 10 seconds upon descent below 2500ft
- Turns amber when below radio altitude minimums
VOL 2 / 10.1.4.5
Describe the Landing Altitude Indication (amber) at the bottom of the altitude tape
The cross hatched area indicates the FMC landing altitude for the new destination runway or airport OR
- the landing altitude for departure or runway
VOL 2 / 10.1.5.3
Describe the PFD Vertical Speed Indications
Vertical Speed Pointer (white): indicates current vertical speed
Selected Vertical Speed Bug (magenta): indicates the speed selected in the MCP vertical speed window with V/S pitch mode engaged
Vertical speed (white): digital numbers displayed vertical speed when greater than 400 fpm. The display is located above the vertical speed indication when climbing and below when descending
TCAS Vertical Speed Tape (red for an RA): Tape turns red to indicate vertical speed values to avoid or exit during a TCAS resolution advisory (RA). Vertical speed pointer is also red if it is within the vertical speed tape range
VOL 2 / 10.1.6.1
Recall the location and purpose of the PFD Approach Reference indication
- The Approach Reference Indicator is displayed on the upper left hand corner of the PFD
- Displayed the selected ILS/IAN identifier or frequency, appraoch front course, and ILS/DME/FMC distance and source annunciation
Note: if the tuned ILS frequencies disagree, the frequency turns amber with an amber horizontal line through it. If the approach courses entered in the MCP disagree, the course turns amber with an amber horizontal line through it.
What we check and say “good identifier to” ha
VOL 2 / 10.1.4.3
Explain the indications of a Resolution Advisory (RA) and where they are displayed
- Aural directions such as “CLIMB, CLIMB” or “DESCEND, DESCEND”
- Intruder aircraft symbol turns red, displayed on the ND in MAP, center MAP or VOR and APP modes
- Avoidance maneuver area displayed in red on the PFD
- TCAS Vertical Speed Tape turns red to indicate vertical speed values to avoid or exit during a TCAS resolution advisory. Vertical speed pointer is red if it is which the vertical speed tape range
Note: ND - Navigation Display
VOL 2 / 10.1.4.6 & 15.2.11
Describe the slip/skid indicator
Displaces beneath the bank pointer to indicate slip or skid:
- fills white at full scale deflection
- turns amber if bank angle is 35 degrees or more; fills amber if the slip/skid indication is also at full scale deflection
VOL 2 / 10.1.4.1
Locate actual aircraft heading on the PFD and ND
PFD - actual aircraft heading is under the white (inverted triangle) currently heading pointer on the compass rose
ND - actual aircraft heading is under the white (inverted triangle) current heading pointer on the outer edge of the compass rose (not in PLAN mode)
Note: the ND shows track up, not heading up. ND - Navigation Display
VOL 2 / 10.1.7.1
Describe where groundspeed and true airspeed are displayed
Top left of ND when the EFIS selector is in the MAP, VOR, APP and PLAN modes
Note: ND - Navigation Display
VOL 2 / 10.1.10.1
Describe where wind direction and speed are displayed
Top left of ND below GS / TAS
Note: ND - Navigation Display
VOL 2 / 10.1.10.1
Describe TCAS traffic displays and symbols
TCAS Traffic Symbols: indicates position of traffic targets. Displayed in MAP, center MAP, VOR and APP modes with TFC selected on the EFIS control panel:
- Red Square: TCAS Resolution Advisory (RA)
- Amber Circle: TCAS Traffic Advisory (TA)
- White Diamond: TCAS Proximate traffic
- Arrow: Traffic climbing or descending at a rate greater than or equal to 500fpm
- TRAFFIC: Displayed on the ND whenever a TCAS RA or TA is active, whether or not TFC is selected on the EFIC Control Panel
- OFFSCALE: Displayed whenever RA or TA traffic is outside ND range
Note: ND - Navigation Display
VOL 2 / 10.8.6.9