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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150 views

How is an A320 on the ground kept cool inside if the APU fails?

What happens to the air conditioner when the APU is not available due to damage or it just fails? Also adding that the airport does not have an air conditioning unit. Since it is above average sea ...
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105 views

How should I read these abbreviations on the Airbus 320 MCDU?

Often I have seen some abbreviations on the Airbus MCDU such as CI, CF, etc. They are explained in this question: What do the different types of approach abbreviations used on the A320 MCDU exactly ...
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What pitch attitudes are common during an emergency descent for an airliner?

What pitch attitudes are common during an emergency descent? I assume it would be a fairly nose-down attitude, but I can't imagine how steep would feel to the passengers. Suppose a gradual ...
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159 views

At what point can Approach mode be engaged in an A320?

In my experience using Flightgear and other computer simulators, when flying an ILS approach on an A320, the approach mode can only be engaged at a certain point or later. What is this point, and why ...
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What are these Lights on the Center Column between Cockpit Windows on the A320?

I have always noticed there is what appears to be three lights on the center column, which separates the pilot and copilot window of the Airbus A320 family. From the looks, the center light is red and ...
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How does the FUEL MANIFOLD PRE FILL LOGIC system work on the CFM LEAP 1A engines for the A320NEO?

The picture above is what my companies operations notice explains. But I haven't fully understood how the system works. Could someone provide more detailed information.
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Why is the NAV ADR 1 ECAM caution a NO GO as per the MEL on the A320?

There isn't much more I can post about the question but in the MEL out of the 3 ADRs if ADR 1 fails on ground the MEL doesn't allow for a dispatch.
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115 views

How much thrust is produced on an A320 at takeoff and during cruise?

Where can you get the drag polar of the A320 at cruise and TakeOff?
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291 views

What factor governs the -1000 feet environmental limit on the A320?

In the limitations chapter of the FCOM for the A320. There is a max and min altitude for normal operation. The reason is clearly given in the AFM for why the aircarft can't operate beyond 39800 feet. ...
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89 views

What is the ground idle fuel flow of an A320 (CFM or IAE or neo)?

Standing on ground, what is the idle fuel flow of an A320? ISA conditions, both engines running?
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What do the different types of approach abbreviations used on the A320 MCDU exactly mean?

On the MCDU I have noticed after setting up the approach there are a number of different codes which appear next to the runway designator these are namely as below: CI CF FI CD FD Can someone kindly ...
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276 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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126 views

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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231 views

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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734 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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293 views

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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136 views

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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226 views

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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51 views

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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154 views

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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117 views

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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407 views

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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288 views

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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266 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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228 views

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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203 views

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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207 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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135 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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729 views

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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370 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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100 views

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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97 views

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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188 views

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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331 views

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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151 views

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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924 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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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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