LPC DAY 2 Flashcards
Prior entering RVSM, following 4 things should be operative normally:
- Two primary altitude systems. They need to agree within +-60m = 200ft.
- One automatic altitude-control system
- One altitude alterting system = TCAS
- Operating transponder
If any of these fails the pilot should request a new clearence to avoid entering RVSM.
When changing levels when flying in RVSM, aircraft should not overshoot/undershoot the cleared level by more than?
45m = 150ft.
RVSM, if the pilot is notified by ATC of deviation from assigned altitude exceeding … , then the pilot should take action to return to cleared flight level
90m = 300ft
Voice communication failure in RVSM, what should be done? 4
- Attempt to establish contact on previous channel, if not successful, another channel appropriate to the route.
- Communication with other aircraft also on same channel.
- If all these fails then we should transmit twice “TRANSMITTING BLIND”.
- If nothing works = sellect SSR code 7600 to indicate radio failure.
Radio failure if VMC, what should we do?
Continue fly VMC, land at the nearest suitable aerodrome, report its arrival immediatly to ATC
Radio failure in IMC, what should we do?
1.Airspace where procedural seperation is being applied, maintain last assigned speed and level, or minimum flight altitude if higher, for a period of 20 min or
2. Airspace where ATS surveillance system is used in provision of ATC , maintain last assigned speed and level, or minimum flight altitude if higher, for a period of 7min
Whichever is later and thereafter adjust level and speed in accordance with the filed flight plan, proceed according to the current flight plan to appropriate NAVAID or fix serving the destination aerodrome, hold over this aid until commencement of descent close as possible to the last EAT or from ETA from current FPL.
Complete normal IAP and land if possible, within 30min after the ETA specified or last acknowledged EAT, whichever is later.
Volcanic ash is defined as?
How does it accumulate and what about the weather radar?
What can be indication of volcanic ash?
Small solid particles ejected from Volcano, 2mm or less.
Ash accumulates at higher altitudes in clouds which then drift with the wind. It does not show up on weather radar because of small sizes of the particles.
St ELMOS fire, or smell and dust within cabin.
Volcanic ash can result in?
Melting?
How to lower the temperature in the core?
Engine damage and malfunction.
Melting within the engine of ash particles is 1100 C, this is less than the core operating temperature of high bypass turbine engines which at least 1400 C = trend for the core temperature to increase much.
The added ash clogs up the engine airflow and can lead to engine flame out.
Reducing the thrust to idle may lower the core temperature to prevent silicates melting.
What is all engines failure? (Engines)
By who and how can it be identified?
Aircraft loses engine thrust and is no longer able to maintain level flight.
By the FWC (flight warning computer) or by flight crew, in most cases we get the ECAM ENG ALL ENGINES FAILURE alert on ECAM.
If FWC does not detect we can see partial loss of thrust (no engine flame out) on one or more engines and N2 may remain slightly above the ENG 1(2) alert threshold.
What can we do if the ENG ALL ENGINES FAILURE is not triggered?
We need to rapidly decide to apply either ALL ENG FAIl QRH procedure or the EMER LANDING QRH procedure. If flight crew considers there is sufficient time to attempt an engine relight, they must apply ALL ENG FAIL QRH procedure. If we decide there is not sufficient time to attempt an engine relight, we must apply EMER LANDING QRH procedure.
Mainly, the all engine failure situation results in what?
Emergency electrical configuration and in loss of the green and yellow hydraulic systems.
Electrical configuration what are lost?
RAT?
What can the emergency generator do?
All the AC and DC busbars are lost
RAT automatically deploys to supply the emergency generator
The EMER GEN supplies both the AC ESS and the DC ESS bus bars
Supply all electrical loads that are necessary for the reminder of the flight. The EMER GEN remains connected even if all the main generators are recovered (follow engines relight), or if the APU is connected.
Emergency configuration, what about APU generator?
APU BLEED?
What about batteries?
APU generator can only be started below FL250, and if we starts it the normal electrical configuration partly recovers. = CM2 displays recovers as well.
Important to check if we have enough fuel, we should start the bleed to recover cabin pressurization and to relight engine. Below FL200.
APU start attempts use the aircraft batteries and reduces it´s load. Total flight time on batteries are more than 30min.
What about the aileron when hydraulic power is lost?
How is the aileron restored?
What should PF avoid?
Right aileron is lost and goes to its zero moment position. We can balance this with sidestick input then we need to do it in permanent roll (permanent sidestick). PF may use the rudder trim to generate sideslip and therefor compensate for this upfloating aileron.
When APU generator is connected, the control of right aileron is restored due to recovery of ELAC2.
Avoid large and rapid rudder deflections because the hydraulic power is only available from the RAT.
Following all engine failure, what is lost in cockpit? 4
After PF establish safe flight path, PM should?
AP, FD and A/THR lost.
Alternate law
F/O PFD and F/O ND are lost = CPT PF.
SD lost
PM should perform ECAM actions. EWD remains available and PM can display the SD pages on EWD by pressing and holding the associated system.
ENG ALL ENGINES FAILURE provides first key steps of the procedure and then directs the crew to ALL ENG FAIL QRH procedure.
What can we do and keep in mind if we want to relight one engine?
We can increase speed during descend to the optimimum windmilling speed indicated on ECAM but keep in mind that we have alternate law = the overspeed protection is lost and the aircraft speed and MACH upper limits are reduced.
If all engine failure is due to flight through volcanic ash, the situation may be associated with?
Unreliable speed indication. QRH includes info and provides the pitch attitude the PF must maintain to target the optimum relight speed.
When can we start the APU bleed?
Why do we turn it on?
What is important to relight engine with APU bleed?
Below FL200.
To relight the engine and to recover cabin pressurization.
To fly at a speed below the optimum windmill speed to enable the FADEC to perform starter-assisted engine relight. Green dot is the best speed with starter-assisted.
Also with APU bleed, we can only attempt a relight on only one engine at a time.
How can we relight the engines?
Why do we set the engine masters to off for 30s in both cases?
Either with windmill and specific speed or the APU bleed.
In order to ventilate the combustion chamber of the engine between two relight attempts.
What is green dot?
Best lift-to-drag ratio speed in order to maximize the remaining time for cabin preperation and distance flown.
If we tried everything to relight the engine and nothing works, what should we do?
Prepare the aircraft for a ditching, or for a forced landing, even if a runway can be reached.
Ditching and forced landing are similar, what is the difference?
What is only availble for approach during ditching or forced landing?
LDG gear should be up for ditching.
Only slats are availble.
Forced landing, why do we extend the gear and how do we do it?
To absorb some energy at touchdown even if landing is planned out of a runway. We do it by gravity.
What Should the PF think about during forced landing? Approach and when on ground
Approach: Maintain higher aircraft path than in normal approach, if aircraft to high = speed brakes to generate drag and increase descent rate.
If runway is selected, we may perform visual approach.
Ground: We can apply brake pedals, accumulator provides hydraulic power to the brakes but is limited. A-SKID is not available, brake pressure should be limited to 1000 PSI. Nose wheel steering is lost = PF must use brake pedals at high speeds to maintain runway axis. At lower speeds PF may use differential braking to maintain axis.
If relight is succesful, what is recovered?
AC1, DC 1, AC 2, DC2 and normal electrical configuration is restored, except AC ESS BUS and DC ESS BUS remain supplied by the emergency generator.
When at least one engine is restored, green, yellow and blue hydraulic systems are restored
Pitot probe obstructed, what is wrong and what is showing correct?
Wrong = Indicated airspeed, AP/FD
Correct = Altitude, VS, FPV, ATC reporting altitude
Static probe obstructed, what is wrong and what is showing correct?
Nothing is correct = Indicated airspeed, altitude, VS, FPV, AP/FD, ATC altitude reporting is wrong
Which four different configuration do we have regarding the BUSS system?
- No buss sytem = If affected ADR´s cannot be identified = use pitch/thrust tables
- Non-reversible BUSS system
- Reversible BUSS system (two BKUP spd/ALT PB available on the main instrument panel
- Digital BUSS (DBUSS) system
Unreliable speed:
If the safe conduct of the flight is affected?
If the safe conduct of the flight is not affected or once the memory items have been applied?
If the affected ADR can be identified?
If affected ADR cannot be identified or all airspeed indications remain unreliable?
APPLY MEMORY ITEMS
LEVEL OFF above MSA and start troubleshooting.
Fly with the remaing ADR. Unreliable ADR P/B = off
FLY with PITCH/THRUST references. One ADR keep on, two ADRs = turn off.
If affected ADR cannot be identified or all airspeed indications remain unreliable, why do we keep one ADR on?
To keep the stall warning protection and to prevent F/CLTS from using two consistent but unreliable ADR data
Non-reversible BUSS system, how do we get it on PFD?
How about AOA?
When we turn off all ADRs. We fly with GPS altitude and back-up speed scale.
Provided by the IRs, we have it.
Reversible buss sytem, how is activated?
With the two BKUP SPD/ALT PB. Reversible.
What is good with the BUSS? Based on?
Decreases the crew workload that replaces the pitch and thrust tables. Based on AOA sensor information (coming from IR) = not effected by erroneous pressure measurements.
How can we activate/deactivate the DBUSS?
What should we think about when we have digital buss DBUSS system?
Two BKUP SPD/ALT pushbuttons. The lookout is not the “green” like the others. It shows normally withc VLS, VMO etc. GPS altitude still.
DO not use MACH because it shows wrong on Mach.
Unreliable speed indication has two objectives
- To fly the aircraft.
- TO identify and isolate affected ADRs to fly pitch/thrust or backup speed.
Limitation reversible BUSS or DBUSS?
Reversible BUSS = below FL250
DBUSS = usable at any altitude
When do we use Pitch/thrust tables?
Flying technique pitch/thrust
No BUSS system available, or it´s available but the the level is above FL250
If the pitch to maintain level flight is above the pitch target of the table = the aircraft is slow = increase thrust
If the pitch to maintain is below the pitch target of the table = we are fast = reduce thrust.
Unreliable speed: If no affected ADRs can be identified? What will happen if we don´t do this and what will be lost?
Switch off 2 ADRs without ECAM doesnt matter which one. Otherwise if we don´t do this OVERSPEED protection will kick in, in normal law which pitchs up the aircraft and you can stall.
When we switch 2 ADRS off, we have no AP.
Unreliable speed: PITOT OBSTRUCTION. What about ECAM and what should we do?
No ECAM will come up. We need to crosscheck PFD 1, PFD 2 and ISIS. If two same = we use it. We need to turn on the switching panel and turn OFF faulty ADR on overhead without ECAM! OTHERWISE we will get VLE EXCEEDENCE warning on ECAM (spurious) in this case.
Unreliable speed, how should we communicate with each other?
If you suspect unreliable speed first thing is to call out numbers! It means “I HAVE 150KT” CPT will say what he sees on his PFD. Then you crosscheck quickly with ISIS, if two same = switch controls immediatly and fly normaly. Do not apply memory items immediatly.
What happens with our speed in case of complete PITOT blockage?
- Airspeed will remain frozen as long as aircraft stays in level flight and will increase or decrease if aircraft climbs/descends.
When we fly the BUS what is good to do during configuration?
Go to the lower area of the green (reduce thrust) and configure and then follow same values from pitch/thrust tables.
Memory items UNRELIABLE SPEED. 9
- AP OFF
- A/THR OFF
- FDs off
- Below Thrust reduction altitude = TOGA, Pitch 15
- Above thrust reduction altitude and below FL100 = CLB, 10 degrees
- Above thrust reduction altitude and above FL100 = CLB, 5 degrees
- Flaps if CONF 0, 1, 2, 3 = maintain current config. If FULL = select flaps 3 and maintain
- Speed brakes check retracted
- L/G = up
What about tailwind on visual approach?
If forecasted tailwind is more than 10kt, decelerated approach is not allowed and speed should be stabilized around VREF + 5kt in final.
What about the bank and configuration for visual?
Turn into base leg with a maximum of 30 degrees and decend with FPA, in flaps 2, at F-speed.
Energy states, three sources which are?
What about trades?
- Kinetic energy = increases with increasing speed.
- Potential energy = proportional to altitude
- Chemical energy = fuel from tanks that can be converted to thrust.
These energies can be traded or exchanged:
1. Airspeed can be traded for altitude = kinetic to potential
2. Altitude can be traded for airspeed = potiential to kinetic.
3. Thrust can be converted to airspeed and/or altitude = Chemical to either kinetic or potential.
Basically the kinetic energy is shows as AIRSPEED on PFD, the potential energy as altitude on PFD and checmical as the ENGINE values (N1/N2) on SD.