LMTs Flashcards
Max taxi weight
325k lbs
Max in flight weight
344k lbs
Start Res trans
285
Res empty
283
Norm res trans
230
Zero fuel weight
205k lbs
Norm landing weight
250k lbs
Max ldg
344k
Emergency landing weight
344k lbs
3 Eng trng
270k
Touch-Go
250
Landing Gear operation
270 kts
Landing gear extended
320 kts
Dump Chute ops
240
Dump Chute extended
275kts
Acft Max Air Speed
339
If ground crew has not called rotation and N1 RPM is not indicated by 25% N2
Call Stop-Start. Release the start switch and investigate the cause before attempting 2nd start
Engine Start: first sign of combustion (light off) is a rise in __, which occurs __ seconds after the throttle is advanced to idle.
EGT / 20 seconds
Fuel flow at light off is normally ___?
less than 1000 PPH
Sustained fuel flow of 1400 PPH or higher indicates __?
Possible Hot Start
Engine RPM and EGT stabilize after starter cutout, N2 RPM should be between ___?
54 -60%
Engine Power setting at 1.2 EPR require aft clearance of ___ feet minimum and settings above 1.2 EPR require aft clearance of minimum ___ feet?
1.2 EPR = 200 feet
Above 1.2 EPR = 500 feet
What is the required duct air pressure for engine start
20-60 PSI
If no Oil Pressure is observed within __ seconds of engine start, call “Stop Start” and terminate start.
30 seconds
When the start selector is released at 35%, with No rise in Duct Pressure and Valve Open indicator is illuminated call ___ and complete what steps?
Call “No Cutout”, and set throttles to CUTOFF, Close Wing Isolation Valves, and Shut off starter Air Source
___ occurs when EGT does not increase within 20 seconds after the throttle is moved to Idle.
Wet Start:
- Below 35% N2: set throttle to cutoff, hold starter switch to GND Start for 15 seconds to clear unburned fuel
Sustained Fuel Flow at light off above 1400 PPH indicates ___?
Impending Hot Start
- Below 35% N2: set throttle to cutoff, hold starter switch to GND Start for 15 seconds to clear unburned fuel
- Above 35%: Throttles to cutoff, allow the engine to stop rotating and determine the cause before attempt another start
EGT rapidly increasing or above 405 degrees C, indicates ___?
Impending Hot Start
- Below 35% N2: set throttle to cutoff, hold starter switch to GND Start for 15 seconds to clear unburned fuel
- Above 35%: Throttles to cutoff, allow the engine to stop rotating and determine the cause before attempting another start
N1/N2 not increasing or increasing slowly, while EGT is rapidly increasing, indicates ___
Hung Start
- Set throttles to cutoff and hold start selector switch to GND Start for 15 seconds to clear fuel.
- Do Not attempt to restart until N2 RPM decreases to ZERO and cause has been determined
N2 RPM below 54% two minutes after fuel on
Throttles Advanced
- Throttles to cutoff
If start selector switch is released from GND Start below 35% N2
Set throttle to Cutoff, allow engine to stop rotation, motor for 15 seconds
If ____ has tripped, do not reset until throttle is in Cutoff and start selector switch is in OFF position.
Start Control and Ignition CB (tailpipe fire or torching can result if CB is not reset first
No drop in duct pressure or Valve Open indicator failed to illuminate when start selector switch set to GND Start
Failure to Start
N2 and Oil Pressure do not increase
Failure to Start: Release the start switch immediately to prevent additional damage to starter due to sheared starter shaft
If the ground crew reports tailpipe fire
Proceed as Wet/Hot Start and motor engine for 15 seconds
Fuel Enrichment may be used when below __ degrees F and must be used when below __ degrees F.
maybe used: below 32F
will be used: below 0F
Nacelle Anti-Ice will be used when ___
OAT is 10C or below and visible moisture present
If Nose Cowl Anti-Icing Valve does not open within 1 second at Idle thrust, increase thrust to ____ N1
37-40%
DO NOT EXCEED 40%
-Failure to open within 1 sec indicates valve sticking due to corrosion
-Failure to open at 1.2 EPR, the valve failed
If Low RPM light fails to go out during engine start, make how many attempts to close the generator breaker?
One attempt
If Generator Breaker does not close, what actions do you take?
Shutdown that engine and have maintenance visually check the integrity of the IDG to verify if the IDG was disconnected
If Low RPM light stays illuminated after restart, ___ and resume operation with generator ___.
disconnect IDG / inop
If Generator Breaker closes, line comes on, and Low RPM light remains illuminated, the cause is ___.
Faulty speed sensing circuit
If APU shuts down during power transfer or for no apparent cause have condition of ______ checked prior to any restart attempt
APU accessory drive shaft checked
if any generator outside of limits (400 +/-8 Hz) with normal indications (No Low RPM light/Oil temp norm) what actions are required?
Shutdown Generator, ensure Fuel Flow is normal then disconnect IDG. Do Not Disconnect with abnormal FF
LOW caution light illuminates when total fuel on board is below
9000 lbs
Close tank refuel valves ____ below desired level to allow for valve closing
300 lbs
Close tank refuel valves ____ below desired level when OAT is below -30 C to allow for valve closing
500 lbs
Max fuel temperature is ____
52 C
Draw Thru Cooling - Fan cutoff above ____ PSIG / Valve indicator off above _____ PSIG
1.0 PSIG / 2.0 PSIG
Forced Air Cooling – Temperature in auto mode ____ F
40 F
Aft Unpress mode _______
45 ˚ +/- 5 ˚F
Max allowable operating duct temperature _____
100 ˚F
LOW SPEED fans on _____ ft cabin pressure altitude or ___˚F during descent
4200 ft or 64 +/- 5 ˚F
HIGH SPEED fan on ____ ft cabin pressure during ascent; supply air temp decreased below ____˚F
5000 / 64 +/- 5 ˚F
Select a cabin pressure altitude between ________ ft for continuous operation.
5000 and 8000 ft
Oxygen System capacity is ___ liters
75 liters
Oxygen Low caution light on below _____ or _____
7.5 liters or below 42 PSIG
Oxygen Normal operating pressure is ___ to ____
290 to 430 PSI
Portable Oxygen Bottles Normal operating pressure is ___ to ____
275 to 430 PSI
