What Kind of engine are installed on the Boeing 737-600/700/800/900 CFM55-7B CFM32-7B CFM56-7B.
What components are connected to N2 and N1 rotor? N2 High pressure rotor (HPC,HPT/Accesory Gearbox)
N1 Low pressure rotor(Fan,LPC,LPT) Each motor has 2 ignition exciters There is one for each engine.
What Kind of Bearing support the engine rotor`s and what kind of loads absorb? Ball bearings absorb the axial and the radial loads from the shafts. Roller bearings
absorb only radial loads. calculates the quantity of fuel necessary to make the commanded thrust. The engine fuel and control system also sends the necessary fuel to the
engine air system so the engine operation is efficient and stable.
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What is the purpose of engine fuel and control system? However, the ignition systems operate automatically when the electronic engine control (EEC) sees a possible engine flameout condition. calculates the quantity of fuel necessary to make the commanded thrust.
The engine fuel and control system also sends the necessary fuel to the
engine air system so the engine operation is efficient and stable.
From the HPC 4th and 9th stages to the high-pressure turbine (HPT) shroud support.
How many EEC are installed in the engine? There is one for each engine Each motor has 2 ignition exciters The ignition exciters supply power to the spark igniters.
the EEC can operate the ignition system in automatic mode? Fan discharge air to the low-pressure turbine (LPT) case. Air flows through the LPTACC valve However, the ignition systems operate automatically when the electronic engine control (EEC) sees a possible engine flameout condition. Each motor has 2 ignition exciters.
How many ignition exciters are in the engines? Each motor has 2 ignition exciters. N2 Total air temperature probe. .
What is the function of ignition exciters? The ignition exciters supply power to the spark igniters. Fan discharge air to the low-pressure turbine (LPT) case. Air flows through the LPTACC valve From the HPC 4th and 9th stages to the high-pressure turbine (HPT) shroud support.
Where is obtained the air for HPTACC: The thrust reverser (T/R) system changes the direction of the fan air exhaust to help create reverse thrust
From the HPC 4th and 9th stages to the high-pressure turbine (HPT) shroud support. The thrust lever resolvers change
the mechanical forward and reverse thrust lever positions to analog
thrust lever resolver angle (TRA) signals
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Where is obtained the air for LPTACC? Fan discharge air to the low-pressure turbine (LPT) case. Air flows through the LPTACC valve The engine oil system supplies oil to lubricate, cool, and clean the engine bearings and gears.
When the door is latched, it causes the P5 panel warning light to go off.
What is the function of VBV? tlet some LPC discharge air bypass the engine and mix with the fan discharge air. The VBVs also keep water out of the HPC and prevent foreign object damage (FOD)during low speed operation and during reverse thrust operation. The thrust reverser (T/R) system changes the direction of the fan air exhaust to help create reverse thrust. The engine oil system supplies oil to lubricate, cool, and clean the engine bearings and gears.
What is the function of Thrust Lever Resolver? When the door is latched, it causes the P5 panel warning light to go off. The thrust lever resolvers change
the mechanical forward and reverse thrust lever positions to analog
thrust lever resolver angle (TRA) signals.
Four green ON lights give an indication of the status of window heat to the No. 1 and 2 windows. The lights come on when power is supplied to the related window.
What is the function of Thrust Revers System? From the HPC 4th and 9th stages to the high-pressure turbine (HPT) shroud support. The ignition exciters supply power to the spark igniters. The thrust reverser (T/R) system changes the direction of the fan air exhaust to help create reverse thrust.
What is the purpose of engine Oil system? The engine oil system supplies oil to lubricate, cool, and clean the engine bearings and gears. Increased fatigue life When the door is latched, it causes the P5 panel warning light to go off.
What engine rotor turn during start procedure? N2 N3 N1.
Which are the adventages of the composite material? High strength
Corrosion resistant
Increased fatigue life
Light weight
Angle of attack sensor (2).
Total air temperature probe.
Pitot probes (5).
The water and waste lines and drains
Flight compartment window
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Where are located the service door, entry door and emergency door in the aircraft? Four green ON lights give an indication of the status of window heat to the No. 1 and 2 windows. The lights come on when power is supplied to the related window. The entry doors are on the left side of the airplane. The galley service doors are on the right side of the airplane. The emergency exit doors are above the wings on both sides of the airplane. The cargo doors are on the right side of the airplane. The miscellaneous access doors are near the systems they serve. The flight data recorder system (FDRS) stores airplane parameters and system data for the last 25 hours of operation.
When the door warning system is activated? When the door is latched, it causes the P5 panel warning light to go off. In the P7 Glareshield panel in the control cabin. Provide a visual alert to the flight crew for incorrect aircraft system operation.
What components are heated with electrical power? However, the ignition systems operate automatically when the electronic engine control (EEC) sees a possible engine flameout condition. Angle of attack sensor (2).
Total air temperature probe.
Pitot probes (5).
The water and waste lines and drains
Flight compartment window
Fan discharge air to the low-pressure turbine (LPT) case. Air flows through the LPTACC valve.
What components are heated with bleed air? The wing thermal anti-ice and the engine inlet cowl thermal anti-ice systems When the door is latched, it causes the P5 panel warning light to go off. The flight data recorder system (FDRS) stores airplane parameters and system data for the last 25 hours of operation.
What does it mean when the ON green light come on in the Window Heat control panel? Four green ON lights give an indication of the status of window heat to the No. 1 and 2 windows. The lights come on when power is supplied to the related window. In the P7 Glareshield panel in the control cabin Provide a visual alert to the flight crew for incorrect aircraft system operation.
What is the purpose of the Flight Data Recorder System? When the door is latched, it causes the P5 panel warning light to go off The flight data recorder system (FDRS) stores airplane parameters and system data for the last 25 hours of operation. The engine oil system supplies oil to lubricate, cool, and clean the engine bearings and gears.
How much time the FDR store aircraft parameters and system data? Ball bearings absorb the axial and the radial loads from the shafts. Roller bearings
absorb only radial loads.
calculates the quantity of fuel necessary to make the commanded thrust Last 25 hours of operation. (Starts recorder when 1 engine is on or when aircraft is on air, whenever the Switch is in Normal position).
What is the function of Master Caution system? Provide a visual alert to the flight crew for incorrect aircraft system operation. The ignition exciters supply power to the spark igniters. N2 High pressure rotor (HPC,HPT/Accesory Gearbox).
Where is located the two master caution lights and the two master warning lights? The flight data recorder system (FDRS) stores airplane parameters and system data for the last 25 hours of operation. The engine oil system supplies oil to lubricate, cool, and clean the engine bearings and gears. In the P7 Glareshield panel in the control cabin.
What is the purpose of common display system? N1 Low pressure rotor(Fan,LPC,LPT) The common display system (CDS) shows performance, navigation and engine information in many different formats on six display units in the flight compartment.
From the HPC 4th and 9th stages to the high-pressure turbine (HPT) shroud support.
What are the function of exterior lights? supply light for airplane identification, direction, and to aid in the safe operation of the airplane Automatically by operation of a pressure switch (14000 feet cabin altitude).
supply oxygen to the flight crew, cabin attendants, and passengers.
What is the purpose of oxygen system? located at aft of the aft cargo compartment supply oxygen to the flight crew, cabin attendants, and passengers. Aft attendant control pane.
How is activated the Passenger Oxygen system automatically? Automatically by operation of a pressure switch (14000 feet cabin altitude). located at aft of the aft cargo compartment Aft attendant control panel.
What is the purpose of potable water system? is the ambient air pressure around the airplane Alternate pitot probe (speed) and Alternate static port (altitude). supplies potable water to the lavatories and galleys and removes sink and toilet waste.
Where is located the water tank? located at aft of the aft cargo compartment Navigation display The Multi-mode receiver (MMR).
Which system provides the water tank pressurization? air when the pneumatic system is on is the air pressure on the pitot probe tube as a result of the forward motion of the airplane The Multi-mode receiver (MMR).
Where is located the Water and Waste Indicator panel? air when the pneumatic system is on Aft attendant control panel Altitude alert.
How many antennas de VHF system have? Speed trim it has 3 antennas Navigation display.
How much time store the voice recorder system? supply oxygen to the flight crew, cabin attendants, and passengers. Fan discharge air to the low-pressure turbine (LPT) case. Air flows through the LPTACC valve The last 120 minutes of communication data in memory.
What is static air pressure? There is one for each engine is the ambient air pressure around the airplane Each motor has 2 ignition exciters.
What is pitot air pressure? is the air pressure on the pitot probe tube as a result of the forward motion of the airplane From the HPC 4th and 9th stages to the high-pressure turbine (HPT) shroud support. The engine oil system supplies oil to lubricate, cool, and clean the engine bearings and gears.
What is the source that send speed and altitude parameters to the standby altimeter/airspeed indicator? When the door is latched, it causes the P5 panel warning light to go off. Alternate pitot probe (speed) and Alternate static port (altitude). The wing thermal anti-ice and the engine inlet cowl thermal anti-ice systems.
Which computer contain the Instrument Landing System Function? The Multi-mode receiver (MMR) Increased fatigue life Total air temperature probe. .
Which display unit is used for the cabin crew to visualize the weather radar, TCAS, parameters? Navigation display The water and waste lines and drains The FLT CTRL B switch must be ON.
15. What are the function of digital flight control system? Autopilot
Flight director
Altitude alert
Speed trim
Mach trim.
Autothrottle
Angle of attack sensor (2).
Total air temperature probe.
Pitot probes (5).
The water and waste lines and drains
Flight compartment window
High strength
Corrosion resistant
Increased fatigue life
Light weight
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16. What is the function of yaw damper? The thrust reverser (T/R) system changes the direction of the fan air exhaust to help create reverse thrust The yaw damper system keeps the airplane stable around the airplane yaw (vertical) axis. The engine oil system supplies oil to lubricate, cool, and clean the engine bearings and gears.
17. What are the conditions that allow the yaw damper system to operate? The system B hydraulic pressure is available
The FLT CTRL B switch must be ON.
Angle of attack sensor
Total air temperature probe Corrosion resistant
Light weight.
What is the computer that control the autothrottle system? Only FCC A has the autothrottle From the HPC 4th and 9th stages to the high-pressure turbine (HPT) shroud support. From the HPC 4th and 9th stages to the high-pressure.
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