Powerplant Flashcards
The engine tailwind start limit is:
20 knots
How many ignitors are used for normal engine ground start?
One (1)
How many ignitors are used with the Continuous Engine Switch?
Two (2)
What does FADEC stand for?
Full Authority Digital Electronic Engine Control
FADEC has how many power channels?
2 (Channel A and Channel B)
What are the FADEC power sources during engine start prior to it using its own generator at 35% RPM?
Channel A - L ESS
Channel B - R ESS
The FADEC is powered by:
A dedicated generator on the accessory gear box.
How many FADEC channels per engine?
Two (2): A/B
If the FADEC detects an anomaly during start, the start will be:
Aborted
If FADEC detects a failure which prevents continued operation in the primary Engine Pressure Ratio (EPR) control mode, it will automatically perform a:
Soft reversion to the Alternate (LP) control mode (AMBER ALT)
Does the engine have different idle settings? If so, what are they?
Yes: LO/HI
When is LO idle and HI idle active?
LO idle - Flaps < 22 degrees
HI idle - Flaps > 22 degrees
What is the Continuous Ignition Limitation?
There is no limitation
The time limit for Maximum Continuous Power is:
Unrestricted
If an engine reverts to LP control, what indications will be in view? What procedure must be performed in this situation?
- At first, ALT (amber) is displayed. This is a SOFT reversion.
- You must change both engines to BLUE ALT control. This is a HARD reversion.
Can you use Autothrottles in ALT control?
No
What are the 4 (four) ways to open the Bleed Air Isolation Valve?
- Start Master selected ON
- Crank Master selected ON
- APU Bleed Air switch selected ON
- Manually select the Isolation Valve ON
The Temperature Scale on the Engine Start Synoptic switches from what to what after engine start?
From 800 degrees to 1000 degrees temperature scale
What is the basic function of the Crank Master Switch?
Motor Engine
What is the Engine Starter Duty Cycle?
- Three (3) attempts
- Wait 15 seconds between start attempts
- Wait 15 minutes after 3 start attempts
Which AC pack shuts off automatically with the Master Crank or Master Start switch?
Right AC Pack
Which AC pack shuts off automatically with the Individual Engine Start Switch?
Left AC Pack
What does the “Start Switch Configuration” CAS message mean?
Both Crank and Start Master switches selected ON simultaneously.
What does the “SAV Maintenance” CAS message mean?
- Amber CAS message (QRH)
- Can occur if start is attempted without air source, or if start switch is not pressed for sufficient time
What does “Throttle Configuration” CAS message mean?
- Amber CAS message (QRH)
- Power lever is not at idle position prior to engine start
What two (2) system sources are required to unlock the T/R?
- Hydraulic
- Electric
When you push the ENG START switch, what indications do you look for?
SVO ICON on Primary Engine Instruments and ENG START synoptic
Fuel Control switch is selected ON, what indication do you look for?
IGN ICON on primary engine instruments
The preferred Engine Airstart procedure and limitations are?
AIRSTART Automatic and at or below 25,000’
When do the Autothrottles retard (RTD) on landing?
50 feet RA
What does “L/R Throttle Configuration” CAS message indicate?
- AMBER CAS message (QRH)
- Power lever is not at IDLE position during engine start
Will the engine start with a “L/R Throttle Configuration” CAS message?
Yes, but it will accelerate to power lever setting immediately upon start
How do you display STBY engine information?
MCDU 1 / MENU / STBY ENG
The reversers should be at Idle Reverse by what speed?
60 knots
MAXIMUM REVERSE time limit is:
30 seconds
FADEC keeps the engine at high idle for _____ seconds on landing to facilitate the use of thrust reversers on touchdown?
5 (five) seconds
If an engine maintenance message “LTD” is present and is the cause of the fault is an EEC / P30 fault, this should be considered a:
No Dispatch Condition
