ENG, APU Flashcards
Define N1
Low Pressure Compressor rotation speed indication
Sec 7.010 p 2
Define N2
High Pressure Compressor rotation indication
Sec 7.010 p 4
What are the Start Lever positions?
IDLE
-Ignition system energized via EEC
-Spar Fuel Shutoff Valve electrically opened
-Engine Fuel Shutoff Valve in Hydromechanical Unit (HMU) opens via EEC
CUTOFF:
-Spar Fuel Shutoff Valve and Engine Fuel Shutoff Valves close
-Ignition system de-energizes
(Sec 7.010 p 6)
What is required for selection of Reverse Thrust?
forward thrust lever must be at IDLE to select reverse
(below 10 feet RA?)
(Sec 7.010 p 6)
What fuel valve(s) close when an engine Start Lever is moved to CUTOFF?
- Spar Fuel Shutoff Valve and Engine Fuel Shutoff Valve close
- Ignition System de-energizes
(Sec 7.010 p 6)
What component controls and monitors engine parameters?
Electronic Engine Control (EEC)
Sec 7.010 p 7
The Electronic Engine Control (EEC) provides exceedance protection for which parameter(s) in normal mode?
The EEC provides N1 and N2 redline overspeed protection in both normal and alternate modes
(Sec 7.010 p 12)
In Normal Mode, what does the Electronic Engine Control (EEC) use to calculate N1 thrust ratings?
Sensed flight conditions and bleed air demand to calculate N1 thrust ratings
(Sec 7.010 p 9)
What are the possible EEC modes with the Engine EEC switch showing both the ON (white) and ALTN (amber) displays illuminated?
Automatic switching to Soft Alternate Control Mode
Sec 7.010 p10
Compare thrust in EEC HARD ALTERNATE Mode to normal mode for a given thrust level position.
Hard Alternate Control Mode thrust is always equal to or greater than Normal Control Mode for the same lever position
(Sec 7.010 p 11)
What does an ENGINE CONTROL (amber) light mean?
EEC detects non-dispatchable faults in the Engine Control System
(Sec 7.010 p 13)
What mode is active with the Thrust Mode Display indicating R-TO (green)?
Reduced Takeoff
Sec 7.010 p 21
What causes the ENG FAIL Alert (amber) on the EGT indicator?
When respective engine is operating at a condition below sustainable idle (50% N2) and the Engine Start Lever is in the IDLE position
(Sec 7.010 p 25)
What removes an ENG FAIL Alert (amber)?
- engine recovers
- Start Lever is moved to CUTOFF, or
- Fire Switch is pulled
(Sec 7.010 p 25)
On the ground, after engine shutdown, what does a red box on the EGT Readout indicate?
An in-flight exceedance has occurred
Sec 7.010 p 24
What does “reverse video” displayed on the Engine Vibration readout indicate?
Vibrational scalar units exceed 4.0
Sec 7.010 p41
What should the ENG VALVE CLOSED lights (blue) and SPAR VALVE CLOSED lights (blue) indicate during a normal preflight, power ON, Engines not running?
dim blue
Sec 7.010 p 28
What does an illuminated FILTER BYPASS light (amber) indicate?
impending filter bypass due to a contaminated filter
Sec 7.010 p 29
What is the indication if the engine oil pressure drops below redline during takeoff roll (>80)?
Steady “LOW OIL PRESSURE” light on Upper DU (Flashing inhibited 80 kts to 400 RA)
(sec 7.010 p 37)
What does the Ignition Selection Switch in the IGN R position select?
IGN R selects the right igniter for use on both engines
Sec 7.010 p 43
In flight, what does the Engine Start Switch in CONT provide with the Engine Start Lever in IDLE?
The selected igniters (L R or BOTH) are operated continuously
(Sec 7.010 p 44)
In flight, what does the Engine Start Switch in FLT provide with the Engine Start Lever in IDLE?
Both igniters are operated regardless of selected igniters
Sec 7.010 p 44
What does a steady START VALVE OPEN (amber) light indicate?
The start valve is open either during engine start or uncommanded between 80 kts and 400 RA — will flash if otherwise uncommanded
(Sec 7.010 p 46)
What does an amber REV indicate? A green REV?
Amber REV: reverser sleeve moves from stowed position
Green REV: reverse thrust lever can be raised to detent No 2
(Sec 7.010 p 51)
