A320 Landing Gear Systems MADE EASY

[@Captain_SQ]

Feeling overwhelmed trying to remember and understand everything about flying? Shoot a text on Telegram @CaptainSQa320 t.me/CaptainSQa320 and I will add you to a private group where we will discuss on everything from being a new pilot to being a full-fledged Captain. This group will be useful for those who are preparing for their Pilot Interview and Training. You can clear your doubts with pilots around the world and accelerate your learning curve. It’s free! See you there. Cheers! Telegram t.me/CaptainSQa320 Instagram instagram.com/captain_sq_... Want to show your support? Then click on this link www.buymeacoffee.com/captainsq Thank you!

[@azkamurfidi1004]

hi capt , why lgciu 1 si no go item, and lgciu 2 si go item? thanks

[@Captain_SQ]

Shoot a text on Telegram @CaptainSQa320 and I will add you to a private group where we will discuss on everything from being a new pilot to being a full-fledged Captain. This group will be useful for those who are preparing for their Command Interview and Training. See you there. Cheers!

[@namhoang3164]

1000psi to prevent from damaging the tires. anything missing? thank you , cap.

[@Captain_SQ]

That's right, to prevent tires from bursting, good job Nam.

[@SaurabhKumar-hr7fn]

Can you explain how parking brake is applied when no engines are running? Also, why do we have to check the brake accumulator pressure in green before coming in for parking?

[@Captain_SQ]

you have the accumulator pressure . If it is in green band in the accumulator, that means it has enough pressure for the parking brake.

[@SaurabhKumar-hr7fn]

@@Captain_SQ I had green Accu pressure and parking brake was set upon braking (confirmed on the triple indicator). Upon shutting down engine no 1( we were doing one engine taxi), and after parking brake on, the aircraft started to toll back. I immediately pressed on the brakes and the aircraft stopped. I have two questions based on this experience: 1) Why didnt the parking brake hold the aircraft even though the accumulator had sufficient pressure and confirmed on triple indicator? 2) When I pressed the pedals, was it the yellow system that automatically worked because the engines were off and yellow elec pump was also off?

[@Captain_SQ]

Older aircrafts have green Hydraulics for parking brakes. New ones now uses yellow hydraulics for parking brakes. When you step on the brakes at the rudder pedals, you are activating the green Hydraulics. So if you say that your aircraft roll back after setting the parking brakes, it means that there is an issue with the yellow accumulators. Yellow accumulator pressure can last up to 12 hours. If you are performing single engine taxi, your yellow electric pump would have been switched on.

[@SaurabhKumar-hr7fn]

@@Captain_SQ yes, we were using yellow elec pump but that is the reason Im confuses because the acc pressure was in green

[@Captain_SQ]

It is possible for it to happen, the accumulator pressure in green but the aircraft move, perhaps there is a problem with the parking brake selector valve(it is possible that it opens slowly) . So once you set the parking brake, you would have to check the brake pressure(the two needles below the accumulator pressure gauge). Check the left and right brake pressure on the pressure indicator is showing before releasing your feet from the brakes.

[@vahitkurtulus509]

LAnding gear not down msg triggered 750 ft RA

[@tritran3016]

Thank you and please do more videos about A230 systems please 😀😀

[@Captain_SQ]

Most welcome Tri Tran.

[@SaurabhKumar-hr7fn]

Why do we have to check the accumulator pressure in green? I thought the parking brake was supplied by the normal yellow system

[@iliasebbouch5181]

There is no yellow hydraulic pressure before the engines are started so the accumulator is needed to pressurize the park brake

[@katjin-ji9189]

Are you wondering why it's called green? Checking it in 'green band' doesn't mean it's using the Green Hydraulics. It being in green band just tells you that the accumulator pressure has sufficient pressure. When the accumulator pressure is in the green band, it typically indicates that the pressure is within the optimal or safe operating range for the system. The green band on a pressure gauge or indicator shows that the pressure is neither too low nor too high, ensuring that the system is functioning correctly and efficiently.

[@AbraheemKalu]

Q2 for store landing gear bay

[@Captain_SQ]

Cool

[@refd2481]

L/G NOT DOWN This alert triggers when: 1.L/G is not downlocked and radio height is lower than 750 ft and both engines N1 lower than 75% (or if engine shutdown N1 of remaining engine lower than 97%) or 2.L/G is not downlocked and radio height is lower than 750 ft and both engines are not at T.O power and flaps at 1, 2, 3 or FULL or 3.L/G is not downlocked and flaps at 3 or FULL and both radio altimeters are failed.

[@Captain_SQ]

Excellent answer, great job.

[@Isuru14]

Hi Capt, What will happen if you retrieve the gear while the aircraft on ground. Will it work without the HYD pressure when the engines are not running. How does the safety pin helps to protect that from happening? Thanks for the video. One last request, please consider the topic hydroplaning for a future video. would like to hear more about it.

[@Captain_SQ]

Hi Isuru, I do believe that you will not be able to retrieve the gears on the ground. I think there is a safety mechanism for it. Sure I will consider a hydroplaning video.

[@Isuru14]

@@Captain_SQ thanks Capt.

[@mehmetsahiner367]

It is interlock mechanism captain that prevents inadvertently retracting the gears when on the ground..

[@shobitshokeen]

When either of shock absorber or landing gear are compressed and nose wheel is not centered a locking Mechanism doesn’t let it retract .

[@Captain_SQ]

Great Shobit!

[@bronxangels]

280

[@Captain_SQ]

Excellent

[@yeemcho]

@@Captain_SQ sir may I ask what about the fuel penalty?

[@Captain_SQ]

@@yeemcho fuel penalty for gears extended?

[@yeemcho]

@@Captain_SQ yes sir

[@Captain_SQ]

180% more fuel burn or 2.8X.

[@JohnB-kc3jx]

750Ft RA, Ldg gr red arrow indication

[@Captain_SQ]

Quick reply Johnson and yes that is correct!

[@Ken-cl9db]

Can you do one for unreliable airspeed?

[@Captain_SQ]

Hi Ken, I have done a recent video regarding Unreliable Speed. You can watch it from my list of videos in the playlist.

[@Ken-cl9db]

@@Captain_SQ oh sorry... just subscribed to ur channel...will scroll through it... also kindly add my on telegram