Questions tagged [airbus-a320]

The Airbus A320 family is a series of twin-engine, single-aisle passenger jets produced from 1986-present. Different versions can typically carry from 107 to 220 passengers.

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240 views

Can Airbus A320 doors be opened mid-flight?

Today I learned how airliner doors are typically an outward facing plug and cabin pressure would make them nearly impossible to open mid-flight. It's easy enough to see that for the shape of Boeing ...
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What is the angle of Incidence of wing of Airbus A320?

What is the Angle of Incidence/ Mounting Angle of the wing of AIRBUS A320?
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Why does the A320 still have this old fashioned nose?

Another answer stated that Airbus was less focused on just brand image, and more on aerodynamics, explaining the more rounded nose of it's 320 vs the 737's. But it still has flat cockpit panes which ...
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107 views

What does “running torque” mean?

I would like to know the meaning of the phrase and especially the meaning of "running torque": Torque the inner plug to between 75 and 85lbf.in. Loosen half a turn and RETORQUE to between 15 and ...
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What does the phrase “electrically controlled and pneumatically operated” mean?

While studying the air-conditioning of the A320 from the FCOM I came across the information that the pack flow valves are "electrically controlled and pneumatically operated". I can not understand ...
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How can the fuel decrease evenly from both wing tanks when an A320 is running on APU only?

I stumbled over this sentence in a training material about fuel leak: "If the fuel quantity symmetrically decrease in both wing tanks and the fuel quantity in the center tank decrease, the fuel leak ...
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Do the A-320 landing gear extend if the mechanism is activated above a limiting speed?

I've been told that on the A-320, if the landing gear lever is lowered with the airspeed above a limiting speed, the system will not extend the landing gear. Further, once the aircraft is slowed to an ...
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What is oil thermal expansion in the CFM LEAP 1A engine for the A320NEO?

While I was going through the FCOM's SOP, normal procedures chapter, preliminary cockpit preparation section I came across the term oil thermal expansion. In the image below it is mentioned in the ...
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Why can't we reset the EEC and EIU CBs while the engines are running on the A320?

I was reading the MEL preamble for the A320 and it stated in a note that with the engines running do not reset the the EEC and EIU CBs. Could anyone explain why is that ?
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What is the fuel/air ratio of the CFM56-5A1 engine (in the A320 model)?

I could find the fan-bypass ratio, which was 6:1 (on some models 5:1) but I was unable to find the fuel to air ratio used in this engine. For reference, it is a high-bypass turbofan engine.
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Why is parking brake set OFF before jacking?

I have a question about the procedure to jack the aircraft for wheel replacement. According to the manual, it required to set the Parking brake OFF before starting jacking at the Main Landing Gear. ...
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Aircraft belly fairing or body-to-wing fairing dimensions?

Does anyone know the dimensions of the Belly Fairing for an aircraft model B737 and A320? I am trying to find this on the internet but this information is hard to find it. Thank you
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Why does only the right outboard aileron on the A320/340 float up when the aircraft is in the emergency electrical configuration? [duplicate]

When the A320/340's RAT is powering the aircraft's systems, the aircraft goes into its emergency electrical configuration; one of the effects of this is that the right outboard aileron becomes ...
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Why are the affected engine's bleed and pack switched off when there is an engine bleed under MEL?

My question mainly pertains to A320neo's equipped with PW engines. The MEL procedure states that the crew has to switch off the affected side's engine bleed, and its associated pack pushbutton to off. ...
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Why does Thrust Reverser need to be operative during the cargo door operation?

It is stated that when the Electric Pump push button is depressed, the electric pump is automatically running as long as the cargo door selector valve is set to either OPEN or CLOSE position. During ...
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Why does the auto brake panel on an A320 use “lo”, rather than “low”?

Is there a specific reason that Airbus chose to shorten "LOW" to "LO" for the lowest autobrake setting? Wouldn't it be more consistent to use three letters for each setting?
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Where does an FMS wind information comes from to calculate V approach?

To calculate the V approach the FMS is using a wind either taken by the ADIRS or inserted on APPR PERF page. At first I will say that it takes the wind inserted by the crew, but I am not completed ...
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Was there more than one incident or accident where an Airbus FBW aircraft reverted to mechanical backup?

There was an accident Smartlynx A320 training flights MYX-9001 at Tallinn on Feb 28th 2018, where ELAC pitch control failed due to fault in the stabilizer actuator, and then both SECs failed due to ...
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Why do the A320’s primary flight controls have hydromechanical backups only for the rudder?

The A320 is primarily a fly-by-wire aircraft, with the pilots’ joystick and rudder-pedal inputs not going directly to the flight-control surfaces, but, rather, to the aircraft’s flight-control ...
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At what exact point in time should we be giving the 10 minutes to diversion call to ATC?

I wanted to get some clear information if it’s available as to which exact point should the 10 mins to diversion call be given to ATC with respect to our FOB. The way I have been doing it currently on ...
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244 views

Why is engine #1 still used when taxiing with one engine?

According to the answer in this post Taxiing with one engine: Is engine #1 always used or do they switch? Engine #1 is used because it pressurizes the green HYD system which powers the Nose Wheel ...
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What's the rattling noise on an A320?

I recently flew on an A320, and during takeoff when the aircraft was rotating, I heard a loud rattling noise. If I had to guess I would say it came from the gear below but I can't be sure. I was ...
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Does the A320's FMC automatically adjust the rate of descent on a non-precision approach?

Does the A320's FMC automatically adjust the rate of descent on a non-precision approach? Like a back course approach for example if the distance to altitude is (or can be) programmed in?
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182 views

Are the A320's A and B electrical buses both energized all of the time during flight?

I'm a novice reading a quick study guide. For electric power, I notice that the A320 has two buses: A and B. Are they both energized all of the time during flight? If not, is there a way to switch ...
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A320 IR2 MEL OPS Procedure

The A320 34-10-05B IR2 MEL OPS procedure additionally calls for Air Data switching to FO3. When ADR 2 is working fine why replace its data on the FO PFD when only IR data is lost?
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How is the A320neo life span calculated?

I read an article saying that the new Airbus A320neo life span is based on monthly cycles instead of hours or takeoff landing cycles, is this correct? If so can I understand how it’s calculated based ...
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119 views

How is the A320neo engine different from the A320ceo engine?

I've looked up at internet about the differences. And the only difference they mention is that the new engine has a higher bypass ratio (making it more fuel efficient), quieter and has an improved ...
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How is the RAT on the Airbus A320 family manually deployed? [duplicate]

I watched Captain Joe's video on this topic but he only said in case the RAT does not deploy that you can manually deploy it from the cockpit, but unfortunately he never stated how this worked? (I'm ...
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294 views

If an A320 loses an engine why does the landing category go to CAT3 single?

Following an A320 engine failure, why does the the landing category go to CAT3 single even if the APU has been started and is powering the AC bus that was lost by the failed engine?
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How does keeping the parking brake applied when brake temperatures are high contribute to the dragging brake phenomenon?

While going through a presentation on the Airbus WIN application with regard to cost saving practises. It was told with regard to brake life. If the parking brake was applied when the brake ...
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Why did Avianca have A318s with PW6000 engine?

I want to know about the upgraded PW6000 Avianca A318s. Why did those get upgraded? Did they not produce enough thrust already?
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Does anyone have photos of internal parts of ELAC, FAC, SEC or Boeing 777 flight computers?

I'm an electrical engineer and I'm interested in civil aviation, more specifically in fly-by-wire planes like the Airbus A320, Boeing 777 and others. But I fell in love with the Airbus A320 as it is ...
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Why is the layout of engine data different for CFM vs IAE engines on Airbuses? [duplicate]

I do a fair bit of simulated flying in consumer flight simulators (and have no real-world flying experience or formal education). Recently, I started putting hours into a supposedly study-level A319 ...
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What does it mean when autoland is fail passive / fail operational?

The below explanation is what I've got from the internet about fail passive and fail operational: Fail operational - Where you have 3 autopilots engaged, such that any single failure will result in ...
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How much unusable fuel is in the A320?

I was wondering how much unusable fuel is in each tank or maybe in total for an A320. I searched through the FCOM and could not find answers. To add to this question is the fuel shown on the fuel SD ...
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Why is there a drift value between the IRS position and the FMGC position present even after performing a full IRS alignment on the A320?

I have noticed this many times across my company's fleet of A320's that is even after a full IRS alignment has been completed many a times there is still a drift value present between the FMGC ...
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Why don't the noses have the same de-icing metal surface like that of the wing's leading edge, engines, tail, etc.?

For reference, let's take the A320. The nose is painted like the rest of the body. Image Source
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808 views

What does 1FD2 mean?

On the EFIS of Airbus you can see 1FD2 on the autopilot section of the FMA. what does it mean?
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Why does the APU Master Switch flash during a normal APU shutdown?

Hi all and Happy New Year!!! I have a question relating to APU shutdown procedures on Airbus A320. During normal APU shutdown sequences, I noticed that after around 1m20s, the FAULT legend on APU ...
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178 views

Why A320/330 use C* FBW control without speed stability?

The A320 and A330 family are FBW aircraft that use C* longitudinal control laws for longitudinal sidestick command tracking. In essence, stick neutral commands 1G flight. When stick is deflected ...
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How exactly is the Flight Path Vector ( aka bird ) affected by inertial errors?

In the A320 FCTM under the systems chapter it's mentioned that the bird is computed using IRS data and therefore is affected by inertial errors. As a result this can cause a +/- 2 degrees track error. ...
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What is this Airbus A320 passager seat part?

I'm on a Airbus A320 anyone have any idea what the black part on the back of the passager seat is used for?
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What does automatic pitch trim is available mean, when bank angle is below 33°?

I was reading about the bank angle protection mode in an A320. I have a few doubts about it. I know that if the bank angle exceeds 33 degrees then automatic pitch trim is not available and hence of ...
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What is the procedure for a fast landing that is too slow for go-around? [closed]

Say an aircraft (A320 or similar) on landing, hits the tarmac way too fast and on a short runway, less than V2 but around V1 or slightly over. This could happen if a pilot had recently moved from ...
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Why does the A320 have an anti skid system and how does it work? [duplicate]

Can somebody explain why do A320 aircraft have an anti skid system? What is its purpose? And a brief explanation on how it works.
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How do A320 pilots trim?

So, I am very familiar with the 737NG, and there is a trim switch on the yoke for vertical trim. However, I can't seem to locate this trim switch in the A320. Is there a trim switch on the joystick in ...
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What's that in front of the overhead panel?

There is that thing I have see a few pilot using it. it can be pulled outside and then inside. what's that and what's the use of it?
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What is the purpose of these “antennas” on the aileron and winglet (A320 Neo) [duplicate]

As title says, see attached picture:
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What is the specific consumption of an A320 at Mach 0.78 and 11,000 metre altitude? [duplicate]

I am currently doing a dissertation on an electric drive system on planes and I need help. I can't find the specific fuel burn rate for an Airbus A320; if anyone could help it would be great. Also a ...
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Why was the “Dispatch Reliability” of the A320 “low” during its first years?

I found the following Statement on the German Wikipedia page about the A320 family of aircrafts. Nach erheblichen Schwierigkeiten in den Anfangsjahren erreicht die A320-Familie mittlerweile eine ...

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