1. When does the CVR record?
    Active anytime 115V AC is applied to airplane.
  2. How long does the CVR record?
    The cockpit voice recorder uses four independent channels to record flight deck audio for 120 minutes. Recordings older than 120 minutes are automatically erased.
  3. How can the CVR be erased?
    Push (2 seconds) –

    -all four channels are erased

    -operative only when the airplane is on the ground and parking brake is set.
  4. How is the supplemental procedure CVR test accomplished?
    Test switch ........................... Push

    Hold switch for 5 seconds. Observe that the TEST light illuminates. A tone may be heard through a headset plugged into the headset jack.
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    What does #1 do?
    NORMAL (guarded position) –

    -in flight – the recorder operates anytime electrical power is available

    -on the ground – either engine must also be operating.

    TEST – powers the flight recorder on the ground.
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    What does #2 indicate?

    -indicates the recorder is not operating or the test is invalid

    -may indicate power failure, loss of input data, or electronic malfunction.
  7. Where is the DFDR (digital flight data recorder) located?
    Aft cabin ceiling
  8. When do the overwing exit doors lock/unlock?
    The overwing emergency exits lock when:

    -three of the four Entry/Service doors are closed and

    -either engine is running and

    -the airplane air/ground logic indicates that the airplane is in the air or both thrust levers are advanced.

    The overwing emergency exits unlock when any one of the above conditions is not met or DC power is lost.
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    What does #1 indicate?
    Illuminated (amber) –

    -on the ground –

    -a fault is detected in the PSEU.

    -or, an overwing exit flight lock fails to disengage when commanded.

    -in-flight –

    -inhibited from thrust lever advance for takeoff until 30 seconds after landing.
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    When is the PSEU light inhibited?
    Inhibited from thrust lever advance for takeoff until 30 seconds after landing
  11. What does the PSEU monitor?
    The PSEU monitors the following systems:

    -takeoff configuration warnings

    -landing configurations warnings

    -landing gear

    -air/ground sensing
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    When will the emergency lights illuminate if #1 is in the ARMED position?
    ARMED – (guarded position) all emergency lights illuminate automatically if airplane electrical power to DC bus No. 1 fails or AC power is turned off
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    What does #1 do in the OFF, ARMED and ON positions?
    OFF – prevents emergency lights system operation if airplane electrical power fails or is turned off.

    ARMED – (guarded position) all emergency lights illuminate automatically if airplane electrical power to DC bus No. 1 fails or AC power is turned off.

    ON – all emergency lights illuminate
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    What does #2 indicate?
    Illuminated (amber) – EMER EXIT LIGHTS switch not in ARMED position
  15. Where is the other EMERGENCY EXIT LIGHTS switch?
    FWD ATTENDANT PANEL.  It will override the cockpit EMERGENCY EXIT LIGHTS switch.

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  16. Which lights will illuminate with the activation of the EMERGENCY EXIT LIGHTS?
    -Cockpit dome light

    Interior emergency exit lights are located:

    -in the lower inboard corner of stowage bins to illuminate the aisle

    -over the entry/service and overwing emergency doors to indicate the door exits

    -in the ceiling to locate the exits and provide general illumination in the area of the exits.

    Self–illuminating exit locator signs are installed at the forward, middle, and aft end of the passenger cabin

    Exterior emergency lights illuminate the escape slides.

    Lights are also installed on the fuselage to illuminate the overwing escape routes and ground contact area.
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    If #4 is in AUTO, When will the FASTEN BELTS and RETURN TO SEAT signs automatically illuminate?

    -illuminate when flaps or gear are extended

    -extinguish when flaps and gear are retracted
  18. How is the STALL WARNING TEST accomplished during the Preliminary Preflight Procedure?
    STALL WARNING TEST switches.  Push and hold, one at a time.

    Verify that each control column vibrates when the respective switch is pushed.
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    What does #1 do?
    Push – tests respective mach/airspeed warning system

    -clacker sounds

    -inhibited while airborne.
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    What does #2 do?
    Push – on ground with AC power available: Each test switch tests its respective stall management yaw damper (SMYD) computer. No.1 SMYD computer shakes Captain’s control column, No.2 SMYD computer shakes First Officer’s control column. Vibrations can be felt on both columns.

    -inhibited while airborne.
  21. What is a requirement for the STALL WARNING TEST?
    The stall warning test requires that AC transfer busses are powered for up to 4 minutes.
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    What does #1 indicate/do?
    Illuminated (amber) – below glideslope alert is active.

    Push – inhibits ground proximity GLIDESLOPE alert when below 1,000 feet radio altitude.
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    What does #2 indicate?
    Illuminated (amber) – GPWS computer malfunction or power loss

    -invalid inputs are being received from radio altimeter, ADIRU, ILS receiver, IRS, FMC, stall management computers, or EFIS control panel.
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    What does #8 indicate?
    Illuminated (amber) – One of the following occurs:

    -RAAS failure

    -GPS position accuracy is inadequate

    -the airport is not in the GPWS database
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    What does #1 indicate?
    Illuminated (red) –

    -flashes and tone sounds when autopilot has disengaged.

    -reset by pushing either disengage light or either A/P disengage switch.

    -steady for any of following conditions:

    -stabilizer out of trim below 800 feet RA on dual channel approach

    -ALT ACQ mode inhibited during A/P go–around if stabilizer not trimmed for single A/P operation

    -disengage light test switch held in position 2

    -automatic ground system tests fail.

    Illuminated (amber) –

    -steady – disengage light test switch held in position 1.

    -flashing – A/P automatically reverts to CWS pitch or roll while in CMD. Resets by pushing either light or selecting another mode.
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    What does #2 indicate?
    Illuminated (red) –

    -flashing – autothrottle has disengaged

    -steady – disengage light test switch held in position 2.

    Illuminated (amber) –

    -steady – disengage light test switch held in position 1

    -flashing – indicates A/T airspeed error under following conditions:


    -flaps not up

    -airspeed differs from commanded value by +10 or -5 knots and is not approaching commanded value.
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