525 SYSTEMS TEST Flashcards
Engine type & Mfg & Bypass Ratio
FJ44-1A WILLIAMS 1900 lbs thrust…3.3:1
What components are driven from the accessory gear section.
Fuel pump, Fuel Control Unit, Oil Pump, Hydraulic Pump, Starter-Generator, N2 tachmeter
Which engine instruments will you still have with a complete DC power failure?
Standby N1
When will the spark igniters automatically activate if the ignition switches are in the NORM position?
Engine start when throttles are brought out of idle-cutoff & when engine anti-ice is selected.
At what point during the start sequence does the starter/generator cease being a starter and become a generator?
45% of N2
What is the quantity of the oil tank?
2.5 quarts
When would you check the oil level?
Within 10 to 30 minutes after shut down
How can you tell if the oil filter has been bypassed?
A bypass warning indicator on the oil filter is extended (popped out) during the exterior preflight by feeling the indictor button thru the access panel.
What is the starter limitations?
3 starts in 30 minutes with 60 second rest period.
What are the limitations for the Battery on starts?
3 starts in 60 minutes
Pushing the LH or RH ENG FIRE switch accomplishes what?
1) Arms bottles 2) Closes fuel & hydraulic firewall shut-off valves 3) Generator field relay is tripped open
Emergency fuel shutoff activates under what condition?
If the n1 shaft moves more than .050 inches (fore & after)
How do the fire loops operate?
Flex stainless steel tube containing a fixed volume of inert helium gas, an increase in temp on any part of the tube creates an increase in the pressure & trips the detector unit.
What is the total fuel capacity in pounds and gallons?
3220 lbs/476 gallons
When will the electric boost pumps automatically operate if the boost pump switches are in the OFF position?
The electric boost pump will not operate automatically when the boost pump switches are in the off position, only in the NORM position.
Do you have the ability to TRANSFER fuel when you are operating in the electrical EMER mode?
NO
In normal position, how is the electric-driven fuel pump fed?
Primary Ejector Pump
What is the maximum fuel imbalance for emergency operations?
600 lbs
How do you know that you have a faulty fuel gauge?
“FUEL GAUGE” annunciator light will illuminate
If you experience a total loss of DC power while in TRANSFER, will you be able to continue to transfer fuel?
No, transfer valve de-energizes closed & electric fuel pumps stops
How can you tell if the fuel filter has been bypassed? And what action should you take if this occurs in flight?
Both “FUEL FLTR BYPASS” annunciators lights will illuminate, land as soon as possible…if only one side indicates land as soon as practical.
A properly services reservoir will contain how much hydraulic fluid? And, what is the kind of hydraulic fluid used in this aircraft?
2 quarts / .54 gallons / MIL-H-83282
Which subsystems are operated by t he open-centered hydraulic system?
1) Landing Gear 2) Speed Brakes
3) Flaps 4) Attenuators
How much pressure is continuously flowing thru the open-centered hydraulic system?
60 PSI
Once activated, how much pressure does the open-center hydraulic system bring to bear on one of its subsystems?
1500 PSI
Which subsystem can be operated normally without electrical power?
None
Which subsystem have a pneumatic backup?
Brakes & Landing Gear
Describe the Emergency Gear blow down procedure?
1) Slow to 186 kts 2) Pull RED T-handle rotate 45 degrees clockwise to lock 3) pull red knob on handle (blow down) 4) Confirm 3 green down & locked
When will the gear warning audible alert activate?
1) Flaps up, throttles below 70% N2 & airspeed below 130 kts (CAN CANCEL) 2) Flaps 15 degrees, throttles below 70% N2 & airspeed before 130 kts (CAN CANCEL) 3) Flaps beyond 15 degrees (CAN NOT CANCEL)
Under what 3 conditions will the speed brakes automatically retract?
1) Both throttles above 85% N2 2) Flaps move from GROUND TO 35 degrees 3) Loss of DC power
If you experience a total DC power failure with the speed brakes extended, what will the speed brakes do?
Safety valve de-energizes open & speed brakes blow to trail
What is the max output of one hydraulic pump?
3.25 GPM
“HYD FLOW LOW” light will illuminate when pump volume output drops below what value?
As the flow decreases below .35 to .55 gpm
How do you know if you develop a hydraulic leak in flight?
“LH & RH HYD FLOW LOW” annunciators will illuminate
How do you know the system bypass valve is powered closed?
HYD PRESS ON annunciator light will illuminate
If both hydraulic pumps fail, will you have a working hydraulic brake system?
YES
Can you take off with the thrust attenuators in the stow position? Explain?
YES /..ALTHOUGH..take offs PROHIBITED for FLAPS ZERO degrees and for FLAPS 15 degree with corrected field length greater then 4500 feet.
If you experience a total DC power failure with the flaps extended, what will the flaps do?
Stay in their current position
If you experience hydraulic system failure with the flaps extended, what will the flaps do?
Stay in their current position. To retract flaps, move the handle to the up position and the flaps will move to the retract position because of air (wind) pressure.
Will anti-skid system function without a working power brake system.
NO
What is the sheer level for the Tower Shaft on the Accessory Drive? How to prevent?
1500 in-lbs / 1st engine must be at idle before attempting a cross-generator start
What is on the EMER BATT BUS?
1) Flap Controls 2) Flood lights 3) Nav 1 4) Comm 1
5) Voltmeter 6) N1 Fan 7) Gear Warning & Control
8) Pilot & Copilot Audio Panel 9) Co-pilot Pitot Static Heat 10) Standby HSI 11) Standby Gyro 12) Standby Airspeed 13) Standby Altitude 14) Copilot AHRS
What is on the HOT BATT BUS?
1) Emergency Exit Lighting 2) Baggage Compartment Lights 3) Nose Compartment Lighting 4) Voltmeter 5) Ignition Power 6) ELT 7) Emergency Battery Pack 8) PAX Advisory Lights
Will the BATTERY DISCONNECT switch work in “EMER” position?
NO
What is the minimum voltage for engine start?
24 volts
Which relay opens when you move the battery master switch from BATT to EMER?
Battery Relay
Should you use the battery disconnect switch instead of physically disconnecting the battery after a flight? WHY?
NO / it will drain the battery
How long will the battery provide power in the EMER mode with the loss of both generators?
30 minutes
What busses are powered with the battery master switch in the OFF position?
Hot Battery Bus
In what position should the generator switches be when starting from a ground power unit (EPU)?
OFF
What (3) valves fail closed?
1) Transfer Valve
2) Cross Flow Valve
3) Emer Pressurization Valve
What (2) ways can you close a field relay?
Starting an engine with the generator switches in the GEN ON position, & reset
Will the BATTERY charge when plugged into a EPU with the BATT switch in the OFF position?
YES
How do you know that a power relay has opened?
GEN OFF annunciator light will illuminate
What is locked when you engage the control lock?
Primary flight controls to neutral and throttle idle cut off – ailerons, rudder, elevator & throttles
How would you stop a runway trim?
Push electric trim disconnect & pull circuit breaker
Can you take off if a stall strip is missing?
NO
What is the MAX SPEED for Flaps 15 degrees?
200 kts
How many wicks can be missing?
None from movable surfaces, (1) on a non-moving surface
When are icing conditions considered to exist?
+10C with visible moisture
What is the limitation of the pitot static heat system on the ground?
2 minutes
How do you illuminate the windshield ice detection lights on the glare shield?
Turn on the dimmer switch
At what temp should you select the HIGH position on the windshield bleed switch?
-18C or below
When you select engine anti-ice, how can you verify the engine anti-ice valve opened?
Drop in N1 & rise in N2
What is the minimum airspeed for flight in sustained icing conditions when anti-ice systems are operating?
160 kts
Describe how the tail boots cycle once you have selected the switch to AUTO?
Still looking for exact answer.
What is the minimum temp which the boots may be operated?
-35 degrees
How can you verify the oxygen bottle is turned on before a flight?
Don Cockpit Mask and draw O2
Can you stop the flow of oxygen to the pax? If so, how?
Yes. move the oxygen gauge to CREW
When will the PAX O2 masks deploy?
13,500 feet
How would you communicate with a crew member and/or ATC while using the crew oxygen masks?
Push to talk - mic
Where is the oxygen overboard discharge indicator located?
Disc is located on the right side of the nose section
Can the PAX oxygen masks be deployed without DC power?
Yes, pull the Oxygen Release handle (manual drop)
What is the purpose of the PRECOOLER?
Cools N2 air from 800 to 500
How is airflow distributed when the COCKPIT AIR DIST knob is in the NORM position?
40% cabin & 60% cockpit
What annunciator light(s) illuminated when FRESH AIR is selected using the pressurization source selector knob? And will the airplane pressurize normally if you take off?
“FRESH AIR” light / NO
How can you tell when air conditioning compressor is operating?
Green light shows up on the A/C switch face
If a GEN OFF annunciator light illuminates in flight, should you immediately turn off the air conditioning compressor? If so, why?
NO / a/c automatically turns off
How can you control the RAM AIR MODULATING VALVE?
Select manual & toggle the switch (called a Cherry Picker)
With the pressurization source selector in the BOTH position, how much air is used to pressurize the cabin?
8 ppm
With pressurization source selector in the LH or RH position, how much air is used to pressurize the cabin?
8 ppm
With the pressurization source selector in the EMER position, how much air is used to pressurize the cabin?
6 ppm of unconditioned air
What is the MAX cabin pressure differential?
8.6
What is the NORMAL cabin pressure differential?
8.3
When are both outflow valves fully opened?
When the LH squat switch is activated and the throttles are below 85% N2
The cabin altitude limit valve will prevent the cabin from depressurizing above what altitude?
13,000 ft +/-
How should you set the pressurization rate controller using the isobaric mode?
Amber light illuminates on the face of the instrument.
Push “FL” and set flight level, on the descent push the “FL” again to set the field elevation plus 200ft of destination.
If you do experience a DC power failure at altitude, how should you control the cabin pressure during the cabin?
Manually using the toggle switch (Cherry Picker)
In what situation would you need to use the cabin dump? And, is DC power required to dump the cabin?
Over-pressurization / Smoke & Fumes / YES
IF you use the cabin dump at FL350, will the cabin completely depressurize? Explain.
It will decompress to 13,000 ft cabin pressure due to Limit Valve.
The cockpit floodlights are powered from what BUS?
Emergency Battery Bus (EMER)
How would you adjust the intensity of the map lights?
Rheostat
Where are the emergency exit lights?
Main entry door, the light over the EMER EXIT, & Emergency Exit light / Sign
The baggage compartment lights receive power from what BUS?
Hot Battery Bus
Which position provides the greatest lighting intensity, LANDING or RECOG/TAXI?
Landing
With the switch in the PAX SAFETY position, what lights are illuminated inside and outside of the aircraft?
Seat Belts / No-smoking / Emergency Exit Lights / Shark Lights
Can you do a cross-gen start airborne? WHY?
NO – To protect the load limiter – Battery disable relay will not open airborne
What are the different sections of the Jet Engine?
Intake/Fan, Combustion, Compression, Exhaust, Diffuser, Accessory Drive
What components make up the Accessory Drive?
Fuel Pump, Fuel Control Unit, Oil Pump, Hydraulic Pump, Starter-Generator, N2 Tachmeter
What is the START SEQUENCE?
Push Starter-Generator Button (disconnect button illuminates), notice a drop on the VOLTMETER, N2 RPM begins rising (when it reaches 8-10%), N1 indication, Throttle to Idle (ignition), monitor ITT rising (max is 1000 degrees in 5 seconds-then retreats), 45% N2 start sequence terminates, 56.2% N2 (Idle RPM), set IDLE speed on 1st engine before starting 2nd engine
Pushing the ENGINE FIRE button does what?
Fuel shut-off, Hydraulic Firewall in pylon shut-off, Trips FIELD RELAY generator, Arms Fire Bottles.
(3) Lights to the Hydraulic System?
1) Hyd Flow Low Light 2) Hyd Pressure ON 3) Firewall Shut-Off (Engine Fire)
(3) Solenoid Valves for the Speed Brakes?
1) Control Valve 2) Thermal Valve 3) Safety Valve
What is specifically important before connecting Battery - First flight of the day?
Check accumulator pressure before connecting Battery
What trips or illuminates the GEN OFF Light?
Power Relay
What does the Generator Control Unit (GCU) do?
Its Regulates, Parallels (keeps both generators balanced), and Protects the Generator
What is the temp differences for the Windshield heat? Hi/Low / what temp trips sensor?
High is 280 degrees / Low is 260 degrees / 300 degrees
If your airplane is not depressurizing on descent, what should you do?
Turn off your bleeds
Memory Items for FIRE, FAULT or Loss of Directional control before V1?
Throttles to Idle, Brakes, Speed Brakes, check list
Memory Items for Engine Fire RH or LH light illuminates?
Throttles to idle, (if the the light remains), ENG FIRE Button (push), either illuminate BOTTLE ARMED button – PUSH, check list
Memory items for FIRE, FAULT above V1 (takeoff continued)?
Maintain direction control, Accelerate Vr, Vr rotate, climb at V2, Landing Gear UP, WING XFLOW switch OFF (if WING/ENGINE ANTI-ICE Switches are in WING/ENG), at 1500 ft AGL – FLAPS UP, V2+10, checklist
Which MASTER light does the “BATT OTEMP” illuminate?
Master Warning
Which MASTER light does the “CAB ATT 10000 FT” illuminate?
Master Warning
Which MASTER light does the “OIL PRESS WARN” illuminate?
Master Warning
Which MASTER light does the “FUEL GAUGE” illuminate?
None
Which MASTER light does the “FUEL BOOST ON” illuminate?
None
Which MASTER light does the “FUEL LOW LEVEL” illuminate?
Master Caution
Which MASTER light does the “FUEL LOW PRESS” illuminate?
Master Caution
Which MASTER light does the “FUEL FLTR BYPASS” illuminate?
Master Caution
Which MASTER light does the “GEN ON” illuminate?
Master Warning (Only when BOTH LH/RH illuminate)
Which MASTER light does the “FLAPS >35” illuminate?
Master Caution
When the “OIL PRESS WARN” light illuminates, what does this mean?
Oil pressure has fallen to 25 psi or less
What is the normal OIL PRESSURE for the engine?
45-90 psi
What is important to KNOW about the memory items if the RH or LH ENGINE FIRE light illuminates?
After THROTTLES to IDLE, we are to pause/wait for a few seconds, if the light goes out you go to the checklist…and WILL NOT be continuing with the other memory items (pushing the ENGINE FIRE button, or pushing the BOTTLE ARMED button)
What are the (3) times that the FUEL BOOST ON automatically?
1) Start 2) Transfer 3) Low Fuel Pressure
Why would the FUEL LOW LEVEL light illuminate?
Fuel level is below 185 pounds (determined by a float switch)
Why would the FUEL FLTR BYPASS light illuminate?
A fuel bypass is IMPENDING
What conditions may be the cause of an FUEL FLTR BYPASS light?
FUEL BYPASS IS IMMINENT.
Contaminated fuel or ICE in the fuel (serious concern)
Can the GEN OFF light be reset?
Yes, by accomplishing the checklist items
What would be the reason for a GEN OFF light
The GCU has detected something unusual with the GENERATOR and commands the POWER RELAY to signal the light
What are the limitations of the BLEED AIR on the ground?
1) Wings-1 minutes 2) Pitot Static-2 minutes 3) Engine-3 minute
What has happen with a AFT J-BOX/LML light?
A 225 amp limiter went off line in the AFT compartment
What is the significance about a AFT J-BOX LML illuminating?
The cross-tie buss will not supply power from the opposite generator during a generator failure
What has happen with a AFT J-BOX/CB light?
Circuit Breaker tripped in the AFT J-Box
What is the SEQUENCE of the HYDRAULIC SYSTEM?
1) Pilot selects a subsystem at cockpit control
2) SYSTEM BYPASS VALVE / Loading Valve closes, pressurizing the system, illuminating HYD PRESS ON light
3) Selected subsystem’s control valve (CV) opens, allowing the subsystem to pressurize
4) Selected subsystem cycle completes and the microswitch signals appropriate cockpit indications
5) Selected subsystem CV closes, locking pressure into the appropriate extend/retract plumbing
(NOTE: Some control valves “neutralize,” with no trapped pressure)
6) SBPV opens, reverting to a low-pressure / open-center system. The HYD PRESS ON annunciator extinguishes
Why would the HYD FLOW LOW light illuminate?
Low Flow in Hydraulics. Its speaking about the Hydraulic Pump itself. Hydraulic Pump is running dry and cavitating.
Which (2) systems are tied to the LEFT GEAR SQUAT switch?
1) Attenuators 2) Landing Gear
Describe the SEQUENCE of the DE-ICE TAIL BOOTS during activation?
Runs on a 3 minute cycle (as follows)
1) 6 seconds left boot
2) 6 seconds off/dwell
3) 6 seconds right boot
4) 2:42 minute off
Limitation of the TAIL BOOTS?
1) -35C degrees
2) Needs at least 16 psi to operate
Is the TAIL DE-ICE BOOT system pneumatic?
YES. Serviced with 23 psi bleed air to inflate, with slip suction for deflation
Why would the W/S AIR OHEAT light illuminate?
2 reasons:
1) Windshield Bleed air has reached 300 degrees or above
OR
2) The 5 psi sensor has noted a bleed air leak thru the Anti-ice valve
What are the (2) reasons the W/S AIR OHEAT
1) 300 degree Bleed Air warning switch activated
2) 5 psi Switch activated (leak detected)
Why would the 5 psi switch activate the W/S AIR OHEAT?
“Windshield Anti-ice Valve did not close all the way. (It detected a bleed air leak)
Why would the ENG ANTI-ICE light illuminate?
Because of either UNDER TEMP or OVER Speed (in-flight only)
What are the specific UNDER TEMP issues with the ENG ANTI-ICE light?
The engine will only tell you that your NOT HOT ENOUGH. 220 degrees F minimum. Throttles need to be increased so the ENGINE INTAKE ANTI-ICE will increase above 220 degrees. In-Flight it may be because you are in descent and have the throttles below 70%
Why is the ENG ANTI-ICE flashing?
Because you have not addressed the STEADY ENG ANTI-ICE light within 1 minute…it flashes to get your attention to the condition…you will also get a Steady Master Caution
What is the limitations for the ENGINE ANTI-ICE?
3 minutes on the ground
Why would the WING ANTI-ICE light illuminate?
1) OVER TEMP…Temp in the fresh air duct (PURGE AIR) has exceeded (145F) most likely on ground…
2) UNDERSPEED…inflight only…if power is below 70% N2
There are (2) temp limitations with the WING ANTI-ICE…what are they, and what do they apply to?
145F MAX (PURGE AIR)
230F MIN (Leading Edge AIR)
Why would the PURGE AIR be exceeding 145F in the WING ANTI-ICE system?
A mud dobber or obstruction limiting RAM AIR flow
Why would the LEADING EDGE AIR be under 230F?
When the N2 RPM is under 70%
Why is the WING ANTI-ICE flashing?
Because you have not addressed the STEADY WING ANTI-ICE light within 1 minute…it flashes to get your attention to the condition…you will also get a Steady Master Caution
Why would the BLD AIR O’HEAT light illuminate?
The BLEED AIR is at 540 degrees or above. The precooler is unable to cool the BLEED AIR TO 500 degrees. ANTI-ICE SHUT OFF VALVE is closed
What is the MAX time for WINDMILLING?
15 minutes
What is required when the AIR DUCT O’HEAT light illuminates?
Turn down the cabin heat
When do you turn-on the IGNITION switches MANUALLY?
1) Take off 2) Landing
When does the IGNITION turn-on AUTOMATICALLY?
1) ENG ANTI-ICE ON 2) START
All valves fail OPEN except for these (3) Valves?
1) Transfer Valve
2) Cross Flow Valve
3) Emergency Pressurization Valve
Can you RESET the ENGINE FIRE switch once pushed? / If so, how?
YES / Push a second time
At what speed do the VORTEX GENERATOR on the top of the RUDDER provide rudder authority?
91 kts
What is the primary reason the ENGINE FIRE light illuminates?
80% of the time its from a BLEED leak
