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15 Cards in this Set
- Front
- Back
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Engine Types
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GE CF6-80C2
PW 4460 |
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Engine Thrust
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GE - 61,500 lbs
PW - 63,300 lbs |
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Thrust set by EPR or N1?
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GE - N1
PW - EPR |
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Engine Ignition receives power from what buses?
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IGN A - L EMER BUS
IGN B - R EMER BUS |
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Selecting Engine Ignition ON does what?
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Start switch is armed
Hydraulic EDP test is armed Ignition is armed Packs are closed for 2 minutes APU goes to 100% |
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Ignition Armed (AUTO) engages ignition ON when...
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Starting - Fuel Switch ON
Takeoff - Throttle >70% till slats retract Landing - slats, flaps OR gear down to 1 min after ground shift Engine Anti-ice ON (for 1 min after switches turned on) |
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Engine Start Switch activation does what?
(4 items) |
Start valve opens
FADEC powered Boost Pump ON (respective tank AFT pump) Instrument lines (EGT red line and N2 Fuel ON blue line) |
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Fuel Switch activation ON does what?
(5 items) |
Ignition ON
Fuel valve OPENS Cargo Door Test (1st switch) Aux Pump 1 OFF (1st switch) Pitot Heat ON - (TAT on ground shift) |
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Approach IDLE is active when...
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Engine Anti-ice ON
and/or Slats / Flaps Extended |
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What is FADEC?
How is it powered? |
Full Authority Digital Engine Control
PMA (permanent magnetic alternator) - Driven by N2 Note - 2 separate windings. Each provides power to its respective FADEC channel. |
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What happens when the FADEC PMA or BOTH channels fail?
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28V DC backup (some planes), otherwise,
controlled engine shutdown |
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FADEC functions (7)
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Minimum approach/idle speeds during descent
Compressor airflow control Thrust control as function of throttle position Acceleration / Deceleration limiting Starting (accel to idle) Auto control of available thrust Protections (N1, N2, Internal pressure, max thrust limits) |
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FADEC goes to ALTN (alternate) due to...
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N1 signal loss
Boost bar (thru) CADC inputs lost |
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SELECT
------------ ALTN (switch) |
Both lights on = SOFT mode
(both CADC inputs to both channels lost, last CADC input used to calculate thrust) Press swich for SELECT to extinguish = ALTN or HARD mode (internal, fixed schedule to determine thrust. ISA+30, may cause increase in thrust) PW autothrottles INOP ALTN light only = Overboost bar |
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Throttles through the Overboost Bar does what?
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ATS Disconnect
MAX Emergency Thrust ALTN Mode on FADEC |
