POWERPLANT (ASM) Flashcards
Type of Engine
AE3007A1E
How many stages are on the High-pressure compressor
14 stages
Where are the CVG stators located
1 through 5
Where is bleed air tappings available
9th and 14th stages
High-Pressure Compressor
14 Stages
1-5 Stages host the CVG and inlet guide vanes
What does the High-Pressure Turbine do
Converts gas flow to drive compressor
Where is the Low-Pressure Turbine located
Downstream from the high-pressure turbine
What is located on the accessory gearbox
Fuel Pump, FPMU, PMA, Oil Pump, Hydraulic Pump, Electrical generators, and pneumatic starter
What drives the accessory gearbox
High-Pressure Spool
What activates the CVG
Pressurized Fuel
What controls the FPMU
Engine FADEC
What is the purpose of the FPMU
Controls and supplies fuel to engine nozzles
Where does the FCOC get fuel
From the FPMU
What is the purpose of the FCOC
Cools engine oil lubrication and warms fuel
What schedules the CVG vanes
The FADEC
Where does the CVG receive fuel
The FPMU
Purpose of the CVG
Optimizes compressor efficiency and stall margins
How many fuel nozzles are there
16
How much oil is in the oil tanks
12 quarts
Purpose of oil lubrication
lubricates engine and accessory gearbox
What stage is the Engine Bleed tapped from for engine start
9th Stage
What does the PMA provide power for
FADECS and Ignition Systems
When does the PMA power the ignitions
Above 10% N2
When does the PMA power the FADECs
Above 50% N2
When is the Ignition system turned on
During engine start
During engine flame out
What controls the ignition
Separate FADEC and powered by PMA
Where is the ATS located
On the accessory gearbox
When does the SCV shutoff
53% N2
How many FADECS per engine?
2 ( A and B)
How are the FADECS connected?
Interconnected through cross channel data links
When does the FADEC operate on its own power
50% N2
What are the roles of the FADECS
One controls powerplant, one stays in standby computing calculations
What calculates N1 target
The FADEC
AE3007A1E takeoff modes
ALT T/O - 1
T/O
E T/O
What does the ATTCS do
Incase of engine failure, ATTCS automatically sets engine thrust to max
When is ATTCS armed
Both engines are capable
Thrust lever is 45º or higher
During engine start, when do the ignitors activate
14% N2
During engine start, when does fuel flow occur
31.5% N2 or 12 seconds after ignition
How long must dry motoring occur for after an aborted start?
atleast 30 seconds
