Powerplant Flashcards
Spell out the below engine system abbreviations:
FADEC, ECU, HMA, RDPS, PRI, REV, CONT, NG, NP, PTIT, AGB
Full Authority Digital Electronic Control Electronic Control Unit Hydromechanical Metering Assembly Ratio Detector Power Supply Primary Reversionary Contingency Gas Producer Power Turbine Power Turbine Inlet Temperature Accessory Gear Box
Identify the 4 major sections of the T55-GA-714A Turbine Engine?
Intake, Compressor, Combustion, Exhuast
Identify the three engine mounted components that have impending bypass indicators that should be checked on pre-flight inspection.
Main Fuel Filter, In-Line Fuel Filter, Main Oil Filter
What NG speed constitutes an NG over speed?
Above 111%
Identify the engines torque limits (dual/single)?
Dual 100%, Single 123%
Identify at what PTIT time limited operations begin.
Above 816
Identify the component that supplies the engine oil pressure signal that is seen on the Powertrain portion of the engine instrument page.
Oil Pressure Sensor
Identify the engine oil temperature limit.
149
Identify what NR percent position we normally have the NR selector switch set at?
100%
What does the load share switch on the FADEC control panel allow the pilot to choose for engine load share?
Torque or PTIT
In relation to FADEC system what component is installed in the flight control closet for the purpose of sending thrust position and rate information to the ECU’s to eliminate rotor droop?
Thrust CPT
Identify the 5 stations of the engine system.
Intake, Compressor, Diffuser, Combustor, Exhaust
What position should the ECL’s be in to see current fault BIT codes on the ECU’s?
Ground
An Engine FAULT detected by the ECU that does not impact the normal control of the engine is a ____ fault.
Soft
An engine FAULT that could cause unacceptable engine or aircraft performance is a ____ fault.
Hard
When the Ignition Lock Switch is IN and ON this supplies power to the circuit of what two components on the engine for the purpose of engine starting?
Engine Ignition Exciter, Start Fuel Solenoid Valve
Below 6000 ft PA what component draws fuel out of the main tank to the entering if the main tank boost pump fails?
Engine Driven Fuel Pump
Identify the FADEC modes of operation the Bleed Band system automatically operates.
Primary and Reversionary
Name the component on the engine that supplies the PTIT data to CAAS for display on the EICAS page on the MFD
PTIT Buss Bar
Name the component that supplies the NR rotor speed data to CAAS for display on the EICAS page on the MFD.
Permanent Magnetic Generators in the Main Generators
Name the component that supplies the NG speed data to CAAS for display on the EICAS page on the MFD and where is it mounted?
NG speed sensor mounted on the Engine Oil Pump
Name the component mounted on the engine that supplies the engine torque data to CAAS for display on the EICAS page on the MFD?
Torque Junction Box
Name the component on the engine that supplies the NP speed data to CAAS on the EICAS page on the MFD.
NP Speed Assembly
Name the component that eliminates small particle build up on the engine chip detector to prevent an engine chip caution.
Engine CHIP Fuzz Burn-off Module
During a preflight inspection you are checking engine fluid lines for what two faults?
Leaks and Chaffing
Write out the underlined Immediate Action Steps for Single Engine Failure (ENG1 FAIL or ENG2 FAIL WARNING)
External Load- Jettison (as required)
FLT DIR CPLR- Uncouple
DAFCS modes- OFF
Engine fire extinguisher bottle gauges should be checked on preflight in accordance with what chart in the TM 1-1520-271-CL?
Engine Fire Extinguisher Bottle Pressure Chart
Name the system that automatically controls engine operation throughout the full operating range of the engine.
FADEC
ENG FAIL WARNINGS will be displayed on which MFDs when active?
All 5 MFDs
The FADEC Control Panel located on the overhead console provides what to the aircraft operators?
Engine Control
With the ENG COND levers in FLT and PRI mode selected NR will be maintained at what selected speed?
NR Switch Selection
2 places a chip caution will appear
MFD, Maintenance Panel
