Emergency Procedures Flashcards
What is DA42 VMCA?
68
Best single engine climb?
82
What is Blue Line?
Best single engine climb
What is Red line?
Single engine stall speed
Vso
55 landing configuration
What is VMCA?
Minimum airborne speed with directional control with one engine inoperative
What is Vyse
Best single engine rate of climb
What is Vsse
Safe single engine speed
What is Vlo
Maximum landing gear operational speed (retraction)
What is Vle
Maximum landing gear extended operational speed
Define ECU
Engine Control Unit
Define FADEC
Full Authority Digital Engine Control
What is the DA42 wingspan?
44’
What is the height of the winglet?
6’
What is DA42 Vso?
55 kias
What is DA42 Vmca?
68 kias
What is DA42 Va (3400 lbs)?
120 kias
What is DA42 Vlo?
156 kias
What is DA42 Vle?
194 kias
What is DA42 Vne?
194 kias
What is DA42 Vs (clean)?
62 kias
What is DA42 Vyse?
82 kias? Blue line
What is DA42 Vfe approach?
137 kias
What is DA42 Vfe landing?
111 kias
What is DA42 Vlo (extension)
194 kias because nose wheel rotates from forward aft
What is DA42 Vno?
155 kias
What is maximum overspeed RPM limitation?
2500 RPM for 20 seconds
What is the maximum engine restart altitude?
6,000 feet (TAE 125-01)
What is the engine restart airspeed envelope?
80-120 kias
Define the Master Warning:
L/R ENG FIRE
L/R Engine Fire Detected
Define the Master Warning:
L/R STARTER
Left or Right Starter Motor is Still Engaged
Define the Master Warning:
DOOR OPEN
Front, Rear or Baggage door opened
Define the Master Caution:
L/R ECU FAIL
Left or Right Engine Control Unit Fault detected (or being tested during preflight)
Define Master Caution:
L/R ALT FAIL
L/R Alternator fail detected
Define Master Caution:
STAL HT FAIL
Stall warning heat failed
Define Master Caution:
STAL HT OFF
Stall warning heat off
Define Master Caution:
STICK LIMIT
Control stick limiting system fail detected
Define Alert:
L/R GLOW ON
Left or Right glow plug still active
What is DA42 MTOW?
3,935 lbs (MAM 42-088 carried out)
What is DA42 MLW
3,935 lbs
Max nose baggage?
66 lbs
Max cabin baggage?
140 lbs combined
T/F stalling with one engine inoperative is permitted?
False
List required lights needed to be operational for legal night flight?
Position Strobe Landing Dome Instrument Flashlight
What fuel does DA42 typically use?
Jet-A
What is DA42 total fuel and useable fuel in main tanks?
52 total 50 usable (25 a side)
What is DA42 total aux fuel and useable aux fuel?
27.5 total 26 useable (13 a side)
What is DA42 max permissible fuel imbalance?
5 gallons
What color are Master Warnings?
Red
What is the Master Warning Alert?
Red text, continuous 1.5 second chime
How do you clear a Master Warning?
Acknowledge it by pushing soft key above “Warning”
List the steps for engine trouble shooting
- Power lever to idle
- In icing turn Alternate air on
- Fuel quantity- check
- Fuel selector - check on & crossfeed
- ECU Swap
- Circuit breakers - check/reset
List immediate steps for engine shutdown and feathering
- Indentify & Verify
2. Failed Engine Master Off
List immediate steps for engine failure during takeoff
- Power levers to Idle
- Rudder maintain directional control
- Brakes as required
What is manufacturers recommendation about continuing takeoff at rotation?
- Don’t if gear is extended and you can stop straight ahead
- If you do then:
- only if one engine inop climb performance is better than 3.3%
Avoid if at all possible
What is manufacturers recommendation regarding go-arounds with one engine inop?
Don’t if below 800 feet AGL
If above then max power on good engine, maintain rudder Control, climb at 82 kias ensure gear and flaps are up, secure bad engine
What is manual gear extension procedure?
- Gear indicator lights - push test
- Electrical Master -check on
- Bus voltage - check normal range
- Circuit breaker - check / reset
- Gear selector - down
- Manual handle - pull out
- Slow to 110 kias - pitch/yaw 3 green
What is Vr for DA42?
Minimum of 72 it’s
What is Vx for DA42?
79 LTD
What is go around speed?
Minimum of 82 ksts
What is Vy for DA42?
Minimum 79 it’s
What is Vref for DA42?
Minimum 78 kts (flaps LDG)
What is noted by the manufacturer regarding Vx and Vy speeds for the DA42?
Vx is below minimum safe speed so it was raised to Vy?
Describe why the Variable Elevator Backstop needs to be functional for flight?
Pushes nose-down during power-on stalls as handling qualities degrade.
It is recommended that which engine be started first?
Left hand engine
Upon selecting the ENGINE MASTER L to ON what must you wait for prior to turning the START KEY?
Glow on extinguished
List the start motor limitations:
- Do not operate starter longer than 10 seconds
- Cooling period of 20 seconds between attempts
- No more than 6 starter attempts until 30 minute cool down period
What annunciator will you receive if you turn the PITOT/STALL HEAT on while on the ground and why?
FAIL caution because on ground and with no air cooling they will over heat.
T/F it is permissible to cross feed both engines simultaneously?
True
While operating at airports with a high OAT or high field elevation, it is possible to see load indications below what %?
90%
What is the sequence of flaps and gear configuration changes during a go-around?
Flaps up
Gear up
Flaps up
Why let the engines idle for 2 minutes prior to shut down?
To avoid heat damage to the turbo chargers
When a Master Caution occurs, the color coded text will be what color and what else happens every 1.5 seconds?
Red text
Audible chime
In event an ECU fails, the system will do what?
Automatically switch to ECU B
How can you reset the ECU A/B Master Caution?
Press ECU Test for 2 seconds
T/F it is possible to receive a L/R FUEL LOW master caution while turning on the ground while taxing?
True
What is the severity associated with a dual alternator failure that isn’t normally associated with non-FADEC equipped aircraft?
Engine failure when battery is completely drained.
What is the maximum demonstrated crosswind component?
20 kts
What is different between Takeoff climb and Cruise climb?
Cruise climb is a higher speed because flaps and gear and up
What are the conditions associated with one engine inoperative climb performance?
1 engine inoperative 1 feathered Flaps up Airspeed 82 kias Gear up Zero sideslip
Basic empty weight for DA42 238US
2750 pounds
Of what material is the overall fuselage and wing constructed?
Polymer reinforced carbon fiber
How are the flaps driven, how many and what are the positions?
Electrically driven 3 positions: -up -approach -landing
Whenever the flaps are moving how many lights are illuminated?
2
What parameters need to be met for the Variable Elevator Backstop to be activated?
- Flaps set to landing
2. Over 20% power
T/F: the Variable Elevator Backstop will be activated even if one engine is feathered, one power lever at 80% and flaps are set to LDG?
False
What keeps the gear in the retracted position?
Hydraulic pressure
What assists the hydraulic system in keeping the landing gear in the down-and-locked position?
Springs maintain force on the down-lock hooks
What causes each of the three green gear indicator lights to illuminate?
When the gear is in the correct position and locked
What conditions will cause the red gear unsafe light to illuminate?
If the gear is neither in the full up nor full down position
What conditions will cause the gear unsafe warning horn to sound?
If at least one power lever is positioned below 20% power but the gear is retracted or if flaps are moved into the LDG position with the gear retracted
The emergency gear extension lever releases what to allow the gear to freefall into the down-and-locked position?
Hydraulic pressure
T/F-the nose gear will continue to turn with the rudder pedal inputs while it is in the up-and-locked position?
False
The front canopy can be kept in the “cooling-gap” position during which operations only?
Ground ops
Do the canopies need to be closed and locked during flight?
No, they need to be closed but not locked
What is the powerplant in the DA42?
Thielert Aircraft Engines TAE 125
- 135 HP @ 2300 RPM
- Liquid cooled, 4-cylinder
- 4-stroke diesel w/ wet sump
- FADEC, intercooled turbo
- 1:1.69 prop redux gear
- hydraulically regulated 3-bladed constant speed props
T/F-the pilot directly controls the RPM of each engine?
False
Via the ECU, an increase in oil pressure to the propeller hub causes a what RPM and a what in propeller pitch?
Higher RPM
Decrease in pitch
What happens after the Left Engine Master is selected to OFF during flight?
The electric governor valve opens and oil is pushed out of the propeller hub by a spring allowing the prop blades to feather
Is it possible to feather the propeller If RPM is below 1300?
No
What controls the ECU and what does the ECU Control?
Pilot controls the ECU ECU controls -manifold pressure -propeller speed -injected fuel quantity
What are the propellers made of and what special considerations do they require?
Wood so power changes should be made slowly to avoid over-speeding and potentially damaging the propellers
Each engine has how many ECUs?
2
How are ECUs switched from A to B?
If ECU A fails it will automatically switch to B but the pilot can also switch it manually
Where should each power lever be set for the ECU test?
Idle / below 900 RPM
How do you reset an ECU caution message?
Yes by holding the ECU test button for more than 2 seconds. This is limited to 1 attempt
What does the engine default page on the MFD show?
Engine % power Engine RPM Fuel flow Oil pressure Oil temperature Coolant temperature Fuel temperature Fuel Quantity
With the Left engine shutdown, how do you get fuel to the Right engine?
Select Crossfeed on the Right Engine
How many total fuel sumps for the main and auxiliary fuel tanks?
6, 4 for mains and 2 for six
What happens if you try to transfer fuel from the auxiliary fuel tanks to full main tanks?
The transfer pumps will automatically shut off
Can the pilot directly transfer fuel from the auxiliary tanks to the opposite main tanks?
No
T/F - the fuel totalizer in the G1000 is a legal way to determine fuel quantity on board for planning purposes?
False
Are Operations permissible when Jet-A is being used and fuel temperature is in the yellow?
Yes
T/F - cabin heat comes from the engine?
True
What else does the gearbox oil system do in addition to lubricating the gears?
Serves the governor system and Pressure Accumulator to enable prop pitch changes
The turbo intercooler does what?
Serves to cool turbo-compressed air to increase power to the engine
The engine fire detection system will trigger an alert when the engine compartment temperature rises above what level?
250 Celsius
Electric power generations is provided by what?
2 - 60 amp alternators
How are the alternators connected to the electrical system?
Each alternator is connected to its own Buss (LH, RH respectively) via a 70 amp circuit breaker
In the event of a main battery failure how are the alternators powered?
Each is energized via its own 12v, 1.3 amp sealed led acid battery
How does load balancing happen between alternators?
Via internal alternator temperature
How is main battery powered stored and connected?
Power is stored via a 24v, 10 amp lead acid battery connected to the hot-battery bus and to the main-battery bus via the battery relay
What gets emergency backup electricity and how?
The Attitude Gyro and Dome light get 1.5 hours of emergency backup power via a non-rechargeable dry battery
What additional redundancy is provided in the event of a main battery malfunction?
Each ECU bus has its own lead acid battery that provides 30 minutes of backup power in the event of a complete electrical failure
How many batteries does the DA42 have in total and what are they?
7
1 - 24v 10 amp lead acid main battery
2 - 12v 1.3 amp alternator exciter batteries
2 - lead acid ECU batteries
1 - non-rechargeable dry battery for attitude gyro and flood light
1 - ELT battery
(1 - flashlight battery??)
Where do you find the total pressure and static pressure ports?
Total pressure is measured at the leading edge of the pitot probe under the left wing
Static pressure is measured on the lower and rear edge of the same probe
What factors determine which engine is the “critical engine”
P: p-factor. On clockwise engines p-factor shifts stronger thrust to outboard of the right prop levering to L
A: accelerated air from prop over right wing generates extra lift in right side
S: spiral airflow drifts aft under fuselage and hits left side of rudder
T: torque from clockwise prop engine L
What airplane settings affect the Vmc speed?
Critical engine off Critical engine windmilling Good engine full throttle Cowl flaps open Flaps at T/O, gear up 5 degree bank @ Sea Level Weight max full Weight full aft Out of Ground Effect