Lights & Switches (B737-700), (SWA)

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Author:
BBB68
ID:
286322
Filename:
Lights & Switches (B737-700), (SWA)
Updated:
2015-08-14 17:59:01
Tags:
SWA B737
Folders:
SWA
Description:
Lights & Switches, SWA, B737-700
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  1. 1.) What does the (green) SPEED BRAKE ARMED light indicate?
    - Light deactivated when SPEED BRAKE lever is in the DOWN position.

    - Illuminated (green) – indicates valid automatic speed brake system inputs.

    (FRM -700/-800, 9-9)
  2. 2.) What does the blue APU MAINT light indicate?
    • Illuminated  – APU maintenance problem exists:
    •   - APU may be operated.
    •   - Light is disarmed when APU switch is in OFF.

    (FRM -700/-800, 7-18)
  3. 3.) What does the amber SPEED BRAKE DO NOT ARM light indicate?
    • - Light deactivated when SPEED BRAKE lever is in the DOWN position.
    • (B737-700W) 
    •   - Indicates an abnormal condition or test input to the speed brake load alleviation system when the flaps are raised, or 
    •   - During landing, indicates wheel speed is < 60 kt, & the speed brake lever is not in the DOWN position 

    (FRM -700/-800, 9-9)
  4. 4.) What does the amber SPEEDBRAKES EXTENDED light indicate?
    • In flight – 
    •   – SPEED BRAKE lever is beyond the ARMED position, & 
    •   – TE flaps extended > flaps 10, or 
    •   – Radio altitude < 800 ft
    • On the ground – 
    •   – SPEED BRAKE lever is in the DOWN detent & 
    •   – Ground spoilers are not stowed.

    (FRM -700/-800, 9-9)
  5. 5.) What does the amber STAB OUT OF TRIM light indicate?
    - Operates only with autopilot engaged

    -
    Illuminated  – Autopilot not trimming stabilizer properly.

    (FRM -700/-800, 4-16)
  6. 6.) What does the amber AUTO BRAKE DISARM light indicate?
    • Illuminated:  
    •    - SPEED BRAKE lever moved to down detent during RTO or landing.  
    •    - Manual brakes applied during RTO or landing.  
    •    - Thrust lever(s) advanced during RTO or landing.        
    •         (Except during first 3 seconds after touchdown for landing)  
    •    - Landing made with RTO selected.  
    •    - RTO mode selected on ground.        
    •         (Illuminates for one to two seconds then extinguishes.)  
    •    - A malfunction exists in automatic braking system.

    • Extinguished:  
    •    - AUTO BRAKE select switch set to OFF.  
    •    - Autobrake armed.

    (FRM -700/-800, 14-4)
  7. 7.) What does the amber ANTI SKID INOP light indicate?
    A system fault is detected by antiskid monitoring system.

    (FRM -700/-800, 14-4)
  8. 8.) What does the amber COWL ANTI-ICE light indicate?
    Illuminated (amber) – indicates an overpressure condition in duct downstream of engine cowl anti-ice valve.

    (FRM -700/-800, 3-5)
  9. 9.) What does the amber REVERSER light indicate?
    • Illuminated – one or more of following has occurred:
    • 1 - Auto-restow circuit has been activated.
    • 2 - One or more Thrust reverser sleeves are not in commanded state.
    • 3 - Isolation valve or thrust reverser control valve is not in commanded position.
    • 4 - A failure has been detected in Synchronization shaft lock circuitry.
    • “ATIS”

    (FRM -700/-800, 7-16)

    Also illuminates when TR is commanded to stow & extinguishes 10 sec. later when the reverser sleeves are fully stowed & isolation valve is closed. If light stays on for > 12 sec. the MASTER CAUTION & ENG annunciator lights come on.  (CC)
  10. 10.) What does the amber ENGINE CONTROL light indicate?
    Illuminated  – engine control system is not dispatchable due to faults in system.

    • Light operates when:
    • 1 - Engine is operating &,
    • 2 - Aircraft on ground &:   
    •    -  < 80 kt prior to takeoff or,   
    •    -  Approximately 30 seconds after touchdown

    (FRM -700/-800, 7-16)
  11. 11.) What does the amber APU LOW OIL PRESSURE light indicate?
    • Illuminated:
    • - During start until the APU oil pressure is normal.
    • Oil pressure is low causing an automatic shutdown (after start cycle is complete).
    • - If light is illuminated when APU switch is placed to OFF, light extinguishes after 5 minutes.
    • - Light is disarmed when APU switch is in OFF position.

    (FRM -700/-800, 7-19)
  12. 12.) What does the amber APU FAULT light indicate?
    • - A malfunction exists causing APU to initiate an automatic shutdown.
    • - If light is illuminated when APU switch is placed to OFF, light extinguishes after 5 min.
    • - Light is disarmed when APU switch is in OFF position.

    (FRM -700/-800, 7-18)
  13. 13.) What does the amber APU OVER SPEED light indicate?
    • Illuminated:
    • - APU RPM limit has been exceeded resulting in an automatic shutdown.
    • - Overspeed shutdown protection feature has failed a self-test during a normal APU shutdown.
    • - If light is illuminated when APU switch is placed to OFF, light extinguishes after 5 min.
    • - Light is disarmed when the APU switch is in OFF position.

    (FRM -700/-800, 7-18)
  14. 14.) What will cause the amber STANDBY PWR OFF light to illuminate?
    • Illuminated - one or more of the following busses are unpowered:
    •    1 - AC standby bus
    •    2 - DC standby bus
    •    3 - Battery bus

    (FRM -700/-800, 6-8)
  15. 15.) What will cause the amber DRIVE light to illuminate?
    • Illuminated - Integrated drive generator (IDG) low oil pressure caused by one of the following:
    • 1 - IDG failure
    • 2 - Engine shutdown
    • 3 - IDG automatic disconnect due to high oil temperature
    • 4 - IDG disconnected through generator drive DISCONNECT switch

    (FRM -700/-800, 6-8)
  16. 16.) What will cause the amber SOURCE OFF light to illuminate?
    • 1 - No source has been manually selected to power the related transfer bus, or
    • 2 - The manually selected source has been disconnected.
    • - If a source has been selected to power the opposite transfer bus, both transfer busses are powered.

    (FRM -700/-800, 6-10)
  17. 17.) What will cause the (blue) GEN OFF BUS light to illuminate?
    IDG is not supplying power to the related transfer bus.

    (FRM -700/800, 6-10)
  18. 18.) What has happened if you get an amber OVERHEAT light above one of your Electric hydraulic pumps (A or B)?
    • - Hydraulic fluid used to cool and lubricate the corresponding electric motor driven pump has overheated or the pump itself has overheated.
    • - If an overheat is detected in either system, the related OVERHEAT light illuminates, power is removed from the pump, and the LOW PRESSURE light illuminates. (As installed) 

    - (On some installations, the pump is apparently not de-powered automatically, and just the related overheat warning light is illuminated)

    (FRM -700/-800, 13-1 & 13-6)

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