Airplane systems Flashcards
Steady warning horn for any gear not down Flaps up to 10
Can be silenced below 800 feet RA, when either forward thrust lever set between idle and 20 degrees angle, or one engine inop and the other thrust lever is less than 34 degrees.
Cannot inhibit below 200’
Steady warning horn for any gear not down Flaps 15-25
Regardless of ALT-either forward thrust lever set between idle and 20 degrees angle, or one engine inop and the other thrust lever is less than 34 degreesCan not be silenced
Steady warning horn for any gear not downFlaps greater than 25
regardless of forward thrust lever position. The landing gear warning horn cannot be silenced with the landing gear warning HORN CUTOUT switch
Takeoff configuration warning
• trailing edge flaps are not in the flaps 1 - 25 takeoff range, or
• trailing edge flaps in a skew or asymmetry, or have
uncommanded motion, or
• leading edge devices not configured for takeoff or have
uncommanded motion, or
• speed brake lever is not in the DOWN position, or
• spoiler control valve is open providing pressurized hydraulic fluid to the ground spoiler interlock valve, or
• parking brake is set, or
• stabilizer trim not set in the takeoff range.
Windshear Warning (Airplane in Windshear)
Excessive windshear at the current airplane position detected by GPWS. Enabled below 1,500 feet RA. GPWS Windshear detection begins at rotation.
Predictive Windshear Alerts WINDSHEAR
AHEAD
Windshear close to and directly ahead of the airplane detected by the weather radar. Enabled during takeoff, below 1,200 feet RA. Predictive windshear symbol on the navigation display
Predictive Windshear Alerts GO AROUND,
WINDSHEAR AHEAD
Windshear within 1.5 miles and directly ahead of the airplane
detected by the weather radar.
Enabled during approach, below
1,200 feet RA.
Predictive windshear symbol on the navigation display
Predictive Windshear Alerts MONITOR RADAR DISPLAY
Windshear within 3 miles and ahead
of the airplane detected by the weather radar.
Enabled during takeoff and approach, below 1,200 feet RA.
Predictive windshear symbol on the navigation display
Wx Radar vs predictive windshear
The weather radar automatically begins scanning for windshear when:
737-800
• thrust levers set for takeoff, even if engine is off or IRS not aligned, or
• in flight below 2,300 feet RA (predictive windshear alerts are issued
below 1,200 feet RA).
737-900
• thrust levers set for takeoff or both oil pressure active and transponder On.
• in flight below 1,800 feet RA (predictive windshear alerts are issued
below 1,200 feet RA).
Alerts are available approximately 12 seconds after the weather radar begins scanning for windshear
indications the airplane is in windshear:
• windshear warning (two–tone siren followed by
“WINDSHEAR, WINDSHEAR, WINDSHEAR”) or
• unacceptable flight path deviations.
Unacceptable flight path deviations are recognized as
uncontrolled changes from normal steady state flight conditions
below 1000 feet AGL, in excess of any of the following:
- 15 knots indicated airspeed
- 500 fpm vertical speed
- 5° pitch attitude
- 1 dot displacement from the glideslope
- unusual thrust lever position for a significant period of time.
Takeoff configuration warning
• trailing edge flaps are not in the flaps 1 - 25 takeoff range, or
• trailing edge flaps in a skew or asymmetry, or have
uncommanded motion, or
• leading edge devices not configured for takeoff or have
uncommanded motion, or
• speed brake lever is not in the DOWN position, or
• spoiler control valve is open providing pressurized hydraulic fluid to the ground spoiler interlock valve, or
• parking brake is set, or
• stabilizer trim not set in the takeoff range.
Windshear Warning (Airplane in Windshear)
Excessive windshear at the current airplane position detected by GPWS. Enabled below 1,500 feet RA. GPWS Windshear detection begins at rotation.
Predictive Windshear Alerts WINDSHEAR
AHEAD
Windshear close to and directly ahead of the airplane detected by the weather radar. Enabled during takeoff, below 1,200 feet RA. Predictive windshear symbol on the navigation display
Predictive Windshear Alerts GO AROUND,
WINDSHEAR AHEAD
Windshear within 1.5 miles and directly ahead of the airplane
detected by the weather radar.
Enabled during approach, below
1,200 feet RA.
Predictive windshear symbol on the navigation display
Predictive Windshear Alerts MONITOR RADAR DISPLAY
Windshear within 3 miles and ahead
of the airplane detected by the weather radar.
Enabled during takeoff and approach, below 1,200 feet RA.
Predictive windshear symbol on the navigation display
Wx Radar vs predictive windshear
The weather radar automatically begins scanning for windshear when:
737-800
• thrust levers set for takeoff, even if engine is off or IRS not aligned, or
• in flight below 2,300 feet RA (predictive windshear alerts are issued
below 1,200 feet RA).
737-900
• thrust levers set for takeoff or both oil pressure active and transponder On.
• in flight below 1,800 feet RA (predictive windshear alerts are issued
below 1,200 feet RA).
Alerts are available approximately 12 seconds after the weather radar begins scanning for windshear
indications the airplane is in windshear:
• windshear warning (two–tone siren followed by
“WINDSHEAR, WINDSHEAR, WINDSHEAR”) or
• unacceptable flight path deviations.
Unacceptable flight path deviations are recognized as
uncontrolled changes from normal steady state flight conditions
below 1000 feet AGL, in excess of any of the following:
- 15 knots indicated airspeed
- 500 fpm vertical speed
- 5° pitch attitude
- 1 dot displacement from the glideslope
- unusual thrust lever position for a significant period of time.
Fuel CONFIG
illuminates if the center tank contains
more than 726kgs, both centre tank pumps are producing low or no pressure and either engine is running..And will continue to display until centre tank is less than 363Kgs, one centre tank pump is producing high pressure or both engines are not running.
Low fuel
Is amber and illuminates when the related main tank contains
less than 907Kgs.
IMBAL
Illuminates if the main tanks differ by more than 453kgs and
will continue to display until imbalance is reduced to 91Kgs.
The hydraulic quantity RF annunciation displays when the hydraulic
quantity is less than
76%
The STAB OUT OF TRIM light operates
Only when the autopilot is engaged.
Engine Ignition (limitation)
Engine ignition must be on for: • takeoff • landing • operation in heavy rain • anti-ice operation.
Engine ignition in FLT/CONT
•severe turbulence •volcanic ash •loss of thrust on both •FAN ICE Removal CONT •emergency descent •Moderate to Heavy rain
Auto Slats & Flaps
From EXT to FULL EXT 800/F10
SFP/F25
Hyd B normal or PTU/A
ENGINE START Switches
GRD –
• opens start valve
• closes engine bleed valve
• for ground starts, arms selected igniter(s) to provide ignition when
engine start lever is moved to IDLE
• for inflight starts, arms both igniters to provide ignition when engine
start lever is moved to IDLE
• releases to AUTO at start valve cutout.
ENGINE START Switches-AUTO
- both igniters are activated when engine start lever is in IDLE and:
- an uncommanded rapid decrease in N2 occurs or,
- N2 is between 57% and 50% or,
- in flight - N2 is between idle and 5%.
- provides automatic ignition to selected igniters when:
- engine is running and,
- flaps are not up below 18000 feet altitude or,
- engine anti-ice is selected to ON.
ENGINE START Switches-CONT
• provides ignition to selected igniters when engine is operating and engine start lever is in IDLE
• in flight - provides ignition to both igniters when N2 is below idle and
engine start lever is in IDLE.
FLT – provides ignition to both igniters when engine start lever is in IDLE.
ENGINE START Switches- FLT
Provides ignition to both igniters when engine start lever is in IDLE.
Brake System
Normal B /Alternate A
Accumulator 3000psi 6 brakes. No brakes left 1000psi
Right landing gear another has A repeater gage.