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117 Cards in this Set
- Front
- Back
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At what FL does the IAS/MACH display automatically change over?
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About FL260
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What is MCP Speed Condition Symbol?
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If a commanded speed is above or below speed limitations, a symbol is displayed on the IAS/MACH display.
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What is the MCP Speed Condition Symbol for underspeed and what condition will cause it to show?
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A flashing "A". It will show when commanded speed is below minimum speed.
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What is the MCP Speed Condition Symbol for overspeed and what condition will cause it to show?
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A flashing "8". It will show when commanded speed is above Vmo/Mmo, landing gear, or flaps limit speed.
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What conditions cause the IAS/MACH display to blank?
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-VNAV engagement, -A/T in FMC SPD, -during a two engine AFDS go around.
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When does N1 Mode engage automatically?
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-Engaging LVL CHG in climb (except for inhibit period 2 1/2 minutes after takeoff), -Engaging VNAV in climb
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When does Speed mode engage automatically?
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-ALT ACQ or ALT HOLD engages, -V/S engages, -GS capture
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How does the A/T behave in comparison to the N1 limit if it is in AUTO or has been set manually on the Engine Display Control Panel?
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In AUTO, the A/T will not set thrust above the N1 limit. In manual, it has no affect on the A/T. It is meant for manual operation of the thrust levers.
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What criteria must me met for VNAV to be armed on the ground?
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-a valid flight plan must be entered, -performance data has been entered and executed, -both flight directors have been switched on
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When does VNAV guidance become active?
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400 ft AGL
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Will VNAV stay engaged if you are not in LNAV?
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Yes, but it will disengage if cross track deviation exceeds twice the RNP
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Can you use VNAV if performance initialization is not complete?
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No
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Can you go to LVL CHG after glideslope capture?
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No
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What altitude is the MCP Altitude referenced to?
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CA for A A/P and FD, FO for B A/P and FD
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When will the ALT HOLD switch light illuminate/extinguish?
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Illuminates when ALT HOLD switch is pressed and when in ALT HOLD mode and MCP altitude is changed. Extinguishes when reaching MCP altitude.
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What happens if the MCP altitude is changed during ALT ACQ?
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V/S mode is engaged
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What criteria has to be met for LNAV to be armed on the ground?
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-Runway in flight plan, -Active route in FMC, -Track of first leg within 5 degrees of runway heading, -LNAV selected prior to TOGA
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When does LNAV guidance become active?
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50 ft AGL
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What is the criteria for LNAV engagement in flight?
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-Active route in FMC, -If outside 3 NM of active route, must be with 90 degrees of course and intercept before active waypoint
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What would cause LNAV to disconnect?
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-End of active route, -Reaching route discontinuity, -Reaching selected course in VOR/LOC or APP, -Selecting HDG SEL, -Loss of capture criteria
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What are the bank angle limits in LNAV?
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Below 200 ft, 8 degrees. Above 200 ft, 30 degrees
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What FMA roll modes can be engaged while intercepting a VOR/LOC course?
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-HDG SEL, -LNAV, -CWS R if an autopilot is engaged
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Which VHF NAV receiver is used during VOR/LOC engagement?
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A autopilot and Captains FD use VHF NAV 1, B autopilot and FO's FD use VHF NAV 2
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Do the Captain's and FO's VHF NAV's and courses need to be the same during VOR/LOC engagement?
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Yes, different frequencies and/or courses can cause disagreement and affect AP operation
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Which antenna does VOR/LOC use?
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VOR uses tail antenna. If LOC frequency is tuned, VHF NAV radios automatically switch to nose antenna if VOR/LOC is armed or engaged.
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What is one reason why LOC mode was inhibited?
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Automatic switching to nose antenna did not occur
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Is LOC backcourse tracking available?
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No
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What modes does the Bank Angle Selector work for?
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HDG SEL or VOR
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How many VHF NAV receivers must be tuned to a LOC frequency before APP mode can be engaged?
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One. When only one is selected, onside AFDS is enabled for guidance and operation.
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How man VHF NAV receivers must be tuned for dual AP operation?
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Both.
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What roll modes can the LOC be captured in?
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-HDG SEL, -LNAV, or CWS R
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When APP mode is armed and at LOC capture, what do you see on the DU?
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-SINGLE CH annunciates in A/P status, -VOR/LOC engages and shows in FMA
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After LOC and GS capture, what does pressing the APP switch do?
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Nothing, it extinguishes indicating that it cannot be deselected
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How can the APP mode be disengaged after LOC and GS capture?
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-Pushing a TOGA switch, -Disengaging AP(s) and turning off both FD, -Retuning the VHF NAV receiver
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What happens to the AFDS in single AP if there is manual pilot input to the controls after LOC or LOC and GS capture?
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For FEQ and earlier, it reverts to CWS and APP mode resets (engaged and armed blanks). For FER and later, AP disconnects and active mode remains engaged
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What happens to the AFDS in dual AP if there is manual pilot input to the controls after FLARE ARM?
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AP disconnects
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Can the A/P operate in a combination of CMD and CWS?
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Yes
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What happens if you engage the second AP when not in APP mode?
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Second AP engages and first AP disconnects
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When would pushing or being in CMD cause CWS to engage?
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-If no pitch or roll mode is selected, -If a pitch or roll mode is deselected, -For FES and earlier, when pitch or roll overridden by control column force
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Does the AP follow FD commands when in CWS?
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No, pitch and roll controlled by pilot
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What happens when a pilot releases controls when in CWS?
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AP holds existing attitude. If bank is 6 degrees or less, AP rolls wings level and holds heading
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When is the heading hold feature inhibited when in CWS?
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-Below 1500 RA with the gear down, -After LOC capture in APP mode, -After VOR capture when TAS 250 kts or less
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What happens when you pull down on the AP disengage bar?
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-Exposes yellow background, -Disengages both AP's, -Prevents AP engagement
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What does the Master (MA) Flight Director Indicators indicate?
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If FD switch is on, then: -Illuminated means related FCC is controlling the FD modes, -Extinguished means opposite FCC is controlling the FD modes, -Both lights illuminated means each FCC is controlling each FD modes
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Can you have the AP on and FD off?
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Yes
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Does turning the FD switch ON automatically display the FD?
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No, a pitch or roll mode has to be engaged
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How many times must you press the AP and AT disconnect switches in order for the lights and tones to stop flashing and sounding?
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Twice if manually disconnected, once if automatically disconnected
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What does a flashing red A/P Disengage Light mean?
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-AP has disengaged, -For FEW and later, an attempt to engage AP was made but was unsuccessful
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What does a steady red A/P Disengage Light mean?
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-Stab out of trim below 800 ft RA on dual AP approach, -ALT ACQ mode inhibited during AP GA if stab not trimmed for single AP operation, -light test switch held in position 2, -auto ground system tests fail
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What does a flashing amber A/P Disengage Light mean?
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A/P automatically switched to CWS while in CMD
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What does a steady amber A/P Disengage Light mean?
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Light test switch held in position 1
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What does a flashing read A/T Disengage Light mean?
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AT has disengaged
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What does a steady red A/T Disengage Light mean?
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Test switch held in position 2
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What does a flashing amber A/T Disengage Light mean?
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AT airspeed error: -In flight, -Flaps not up, -Airspeed +10/-5 and not approaching command speed
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What does a steady amber A/T Disengage Light mean?
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Test switch held in position 1
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What does the STAB OUT OF TRIM light mean?
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Autopilot not trimming stabilizer properly
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Does the STAB OUT OF TRIM light come on with the AP disengaged?
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No
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What does a white A/T LIM on the thrust mode display mean?
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The FMC is not providing the AT system with N1 limit values, it is using a degraded value from the EEC
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Does the AT work when the EEC's are in the alternate mode?
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Yes
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What would cause automatic disengagement of the AT?
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-AT system fault, -Two seconds after touchdown, -Thrust levers become separated by more than 10 degrees, -Significant thrust difference with control wheel roll input of 10 degrees
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Which Flight Control Computer controls the pitch and roll hydraulic servos?
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There are two FCC's, A and B, each controls their respective hydraulic (A and B) servos
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If an MCP mode switch is active, how do know if deselecting it is prohibited?
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The light is extinguished
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What conditions have to be met before an AP can be engaged?
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-No force is being applied to the control wheel, -The STAB TRIM AUTOPILOT cutout switch is in NORMAL
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What would cause the AP to disengage?(Card 1)
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-Pushing either AP disengage switch, -Column force override, -Pushing either TOGA switch when single AP and: below 2000 ft RA or with flaps not up or GS engaged, -Pushing either TOGA switch after touchdown with both AP's in CMD, -Pushing an illuminated A/P ENGAGE switch, -Pulling the AP DISENGAGE bar down
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What would cause the AP to disengage?(Card 2)
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-Activating either pilots trim switch, -Moving the STAB TRIM AUTOPILOT cutout switch to CUTOUT, -Either left or right IRS failure or FAULT, -Loss of electrical power on engaged AP, -Loss of sensor input which prevents proper operation of AP and mode, -Loss of respective hydraulic system pressure
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Do the radio altimeters affect the FCC's?
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Yes, if one of the radio altimeters fails the AP will disconnect two seconds after LOC and GS capture
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What conditions would cause each FCC to control their respective FD?
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Neither AP in CMD, both FD's on, and one of the following: -APP mode engaged with LOC and GS capture, -GA mode engaged and below 400 ft RA, -TO mode engaged and below 400 ft RA
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What conditions have to be met to enter the FD TOGA - takeoff mode?
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1: Both FD switches on and TOGA pressed, 2: TOGA pressed, regardless of FD's being on, after 80 kts below 2000 ft AGL and less than 150 seconds after liftoff
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Describe the AFDS commanded pitch attitudes in TOGA takeoff
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-10 degrees nose down until 60 kts, -15 degrees nose up after 60 kts, -15 degrees after liftoff until a sufficient climb rate is established then MCP speed +20 kts
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How does the AFDS commands for pitch attitudes change if in TOGA takeoff and an engine fails?
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Commands speed: -V2 if below V2, -Existing speed if between V2 and V2+20, -V2+20 if above V2+20
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Describe the AFDS roll commands during TOGA takeoff
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AFDS commands wings level
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Describe the AFDS autothrottle commands during TOGA takeoff
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-Pressing TOGA puts AT in N1 mode, -At 84 kts, the AT annunciates THR HLD, -At 800 ft AFE, the AT changes to ARM
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After takeoff, how does the AT change from ARM to N1 at CLB thrust?
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-Manually by pressing the N1 switch, -Automatically by reaching the Thrust Reduction Altitude set in the FMC
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How can you get the AT to command full GA thrust after a reduced thrust takeoff?
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-Pressing TOGA below 800 ft AFE will change the thrust mode display to GA and N1 reference bugs to full GA thrust, thrust levers will not move, -Pressing TOGA above 800 ft AFE will command full GA thrust
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How do you terminate TOGA takeoff mode?
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-Below 400 ft AFE, both FD switches must be turned off. -Above 400 ft AFE, by engaging an AP or selecting another pitch mode
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For a dual AP approach, what action permits the second AP to engage in command?
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After setting the LOC frequency and course, selecting APP mode
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For an ILS approach, can you capture the GS before the LOC?
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No
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For an ILS approach, at what point does the N1 limit change to GA in the TMD?
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At GS capture
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For a dual AP approach, what happens after LOC and GS capture and after passing 1500 ft RA?
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-Second AP couples with the flight controls, -Test of ILS Deviation Monitor System occurs, evident by LOC or GS flashing amber, -FLARE mode is armed, -SINGLE CH annunciation extinguishes, -AP GA mode arms (not annunciated)
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For a dual AP approach, at what point must the second AP be engaged in CMD?
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800 ft RA
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For a dual AP approach, what happens at 400 ft RA?
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The stabilizer is trimmed an additional amount nose up
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For a dual AP approach, what would cause both AP do disengage at 350 ft RA?
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FLARE not armed
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For a dual AP approach, describe the AP FLARE maneuver
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-At 50 ft RA, FLARE engages and FD bars retract, -At 27 ft RA, AT begins to RETARD to idle, -AT disengages 2 seconds after touchdown, -AP must be manually disengaged after touchdown
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What is required to enter an AP GA mode?
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-Both AP engaged, -GA mode armed, which occurs at FLARE armed at 1500 ft RA, -Before touchdown, -TOGA pressed
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Describe the pitch commands during an AP GA
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Pitch commands 15 degrees nose up. After reaching a programmed rate of climb, pitch automatically commands the airspeed cursor to the target airspeed for the existing flap setting based on maximum takeoff weight calculations
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Describe the roll commands during an AP GA
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Commands current ground track. If LNAV is armed, it engages at 400 ft RA
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Describe the thrust commands during an AP GA
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AT engages in reduced thrust GA which provides 1000 to 2000 fpm climb rate. AT FMA is GA.
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How can you engage in full GA thrust?
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By pressing TOGA a second time after the AT reaches reduced GA thrust.
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What does the IAS/Mach display show during an AP or FD GA?
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It is blank
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How do you terminate the AP GA mode below 400 ft RA?
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Both AP and FD are disengaged.
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What happens if the roll mode is changed first above 400 ft RA during an AP GA?
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-Roll mode engages in single AP operation by the AP first in CMD. -Pitch remains in dual AP control in TOGA mode
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What happens if the pitch mode is changed first above 400 ft RA during an AP GA?
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-Second AP disengages, -Pitch mode engages in single AP control by first AP in CMD, -Roll mode engages in CWS R
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How does the AT GA mode terminate above 400 ft RA during an AP or FD GA?
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-Another pitch mode is selected, -ALT ACQ engages
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What would cause ALT ACQ to be inhibited during an AP GA?
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The stabilizer trim has not been reset for single AP operation
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During an AP GA, how would you know that the stabilizer trim position is not satisfactory for single AP operation? What would you do?
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ALT ACQ would be inhibited, Pitch cannot be changed from TOGA, and the A/P DISENGAGE LIGHT would be steady red. You can either disengage the AP or set a higher MCP Altitude
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What conditions have to be met for a FD GA to be available?
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-In flight below 2000 ft RA, -In flight above 2000 ft RA with flaps not up or GS captured, -Not in TOGA - takeoff
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Do you have to have the FD's on in order to engage TOGA - go around?
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No, either FD can be on or off
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Describe the pitch commands during a FD GA
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Pitch commands 15 degrees nose up. After reaching a programmed rate of climb, pitch automatically commands the airspeed cursor to the target airspeed for the existing flap setting based on maximum takeoff weight calculations
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Describe the roll commands during a FD GA
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Commands current ground track. If LNAV is armed, it engages at 50 ft AGL
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Describe the thrust commands during a FD GA
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AT engages in reduced thrust GA which provides 1000 to 2000 fpm climb rate. AT FMA is GA.
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How do you terminate the FD GA mode below 400 ft RA?
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Both FD switches are turned off.
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What happens if the roll mode is changed first above 400 ft RA during a FD GA?
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-Selected roll mode engages, -Pitch remains TOGA mode
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What happens if the pitch mode is changed first above 400 ft RA during a FD GA?
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-Selected pitch mode engages, -Roll mode engages in HDG SEL
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What happens during a FD GA if CMD is selected?
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Pitch goes to LVL CHG and Roll goes to HDG SEL
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Describe the pitch commands during a single engine FD GA if engine failure occurred prior to GA engagement
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Pitch commands 13 degrees nose up. As climb rate increases, pitch commands selected MCP Speed
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Describe the pitch commands during a single engine FD GA if engine failure occurs after GA engagement
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Pitch commands 13 degrees nose up. As climb rate increases, pitch commands speed: -Before 10 seconds, MCP speed, -After 10 seconds and within 5 kts of GA engagement speed then GA engagement speed, -After 10 seconds and above 5 kts of GA engagement speed then current speed
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Describe the roll commands during a single engine FD GA
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Commands current ground track. If LNAV is armed, it engages at 50 ft AGL
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During a single engine FD GA, will the speed accelerate automatically?
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No, the speed window is open and any speed increase must be manually selected
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Describe the AFS operation after encountering windshear during a FD takeoff or GA
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-FD pitch bar commands target speed, -If V/S decreases to about +600 fpm, FD commands 15 degrees pitch, -If speed decreases to stick shaker, pitch commands attitude which results in intermittent stick shaker
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Describe the AFS operation after the aircraft transitions out of winsdshear during a FD takeoff or GA
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As climb rate increases above +600 fpm, FD commands pitch attitudes that increase to target speed
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Describe the AFS operation after encountering windshear during an ILS approach
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Both the AP and FD attempt to keep the aircraft altitude or on GS if after capture without regard to angle of attack
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The AFS provides commands to avoid which limit speeds?
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VMO/MMO, Flap Placard, Landing Gear Placard, Minimum Speed
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How does Command Speed Limiting work?
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If command speed is greater than a placard speed or less than a minimum speed, the AFS allows speed to the limit but then commands the limit speed
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What does the IAS/Mach display window show during Command Speed Limiting?
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The over speed ("8") or under speed ("A") symbol shows
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How does the AFS command the limit speed during Command Speed Limiting?
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By either pitch or thrust, whichever one is in a speed mode
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What is AFS Reversion Modes?
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If the speed control by the AFDS or AT is insufficient to prevent exceeding a speed limit, the AFS will revert to a more effective mode combination
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What are the two reversion modes?
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Placard Limit Reversion and Minimum Airspeed Reversion
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