Easyjet Takeoff with PTU fault

[@fyttikatta8876]

I would rather listen to a faulty HYD PTU than a screaming baby

[@sbentjies]

+Fytti Katta ANY day

[@ruairidaly6452]

Same

[@AberdeenAviation]

Fytti Katta lol

[@sparrowlt]

amen

[@cerjo84]

Fytti Katta lol I'm with you on that one 😂

[@metalux1971]

Always a screaming baby onboard

[@AnonYmous17]

The PTU sounds nicer than the crying baby.

[@DAR4K]

and barking dogs sometimes

[@JayJasperLondon]

metalux1971 And always with parents who seem completely ignorant and/or unwilling to even consider doing anything about it 🤷🏼‍♀️

[@lukemartin2310]

I'm a 14 year old learning to fly and absolutely love tricking my parents when on a plane. If the flaps or ailerons move my sister gets scared and they still think the PTU is a dog in the cargo hold😂😂

[@bigm8976]

Luke Martin hahaha I do that too hahaha I am 14 learning to be a pilot too and I get some really sexist comments too

[@mapextv]

Sarah Magnah 17 year old future pilot (hopefully ^^) here! Well trust me that this sexist stuff will stop as soon as you get into the aviation industry. Those comments come from retarded people who might even be jealous and most people in the aviation industry aren't like that taking information of female pilots and my own little experience behind the scenes of airlines ^^ Follow your dream and don't let yourself get affected by idiots ^^

[@singhamaninder5836]

Luke Martin I am 14 too! Its awesome to fly! And yes, Please join IVAO for piloting information!☺

[@MichaelFlatman]

fancy seeing you here!, yeah i know! sounds like a dog is in the cargo hold, or someone is hacksawing their way into the cabin!

[@flotrenzy]

I'm jealous, wish I had the money for flying lessons. I'm an aspiring pilot

[@jameschristmas3206]

The postman is here

[@focks703]

Lol XD

[@ulli4521]

The PTU is able to operate the hydraulic motor generator during all phases of flight. It cycles on whenever an engine is started, and may repeatedly cycle on and off whenever pressure in one system drops below a certain point. While it would engage in the event of a failure, in day-to-day operations it is commonly used during taxiing when one engine is shut down to conserve fuel.

[@Sterlingjob]

Hans Georg Lensen the hydraulic motor generator is on blue system only

[@levaughn9742]

If I'm not wrong the PTU can be heated and will start making that sound

[@TangoCR97]

Thumbs up if in every flight you were there was a fucking baby crying

[@pilotdan7899]

It wasn't a ptu fault! When the engine starts the hydraulics start to raise and the ptu makes the dog bark when the pressure raises! It likely the hydrolics didn't fully equalise

[@Sterlingjob]

PilotDan789 the ptu will only operate when there is a difference of more than 500psi between green and yellow systems. The fact that both engines are running and the ptu is also running tells me there is a fault with the ptu or a component connected to it.

[@world-voyager]

I most definitely think the pilots forgot to turn of the yellow hydraulic pump meaning the ptu kept barking till the gear was retracted and flaps were set to 0

[@Matt_J95a]

Before I knew what the ptu was, I'd be wanting off that plane...

[@TheKierony]

This is totally normal - the PTU equalises hydraulic pressure, that's just the noise it makes. It stopped when the gear went up, massive drop on hydraulic pressure load when that happens - no fault :-(

[@Sterlingjob]

Kieran Mellor There is a fault because if both engine pumps are producing 3000psi then there will not be a 500psi difference therefore the ptu will not run.

[@Sterlingjob]

That is incorrect. With one engine running and the parking brake set the PTU does not run. We had this problem one night and the driver refused to taxi onto stand as the PTU was not working because the park brake was set.

[@99domini99]

When the plane taxi's with only one engine started, the PTU tends to run through the takeoff and sometimes even during departure. When one engine fails during flight, the PTU barks during every part of the flight.

[@Descargamx]

Once I was on a flight to LHR and it sounded almost the entire flight!!

[@Sterlingjob]

With engines running no, but on ground during maintenance you can hear it. What the guy above said is incorrect.

[@jontrout2010]

Trying to put Sterlingjob in his place is wrong. He knows what he's talking about when it comes to these aircraft.

[@inacio1barsa]

Hi, !!. Sometimes this can happen, but its quite unusual. I fly this fleet for Air Berlin in Dusseldorf. Sometimes we have the ptu working all through the taxi because the pressure of the engiines after the startt-up might not be stabilized, and thats the ptu function, stabilize the pressure of the differente hydraulic systems. If the ptu is not able to do this after or during the start up it will do it when the gears go up, so it will be much easier to stabilize central system. Thank you :)

[@ag6371]

It's related to the landing gear green or yellow hydraulic lines (PTU deactivates after gear retracts)

[@Sterlingjob]

The ptu will only operate when there is a 500psi or more difference between yellow and green systems. This is not normal operation.

[@dominikg.489]

Bad dog ! xD

[@karlbbb]

My apologies. Having got home and checked the FCOM you are indeed right. I'd forgotten about the "AND" section of logic regarding the parking brake and NWS not in towing position.

[@flightsimulatorXpert]

Excellent demonstration!

[@TheSolnabo]

Hush up Ammis (my dog) - it´s just PTU barking! :D

[@tensevo]

Not sure it is a PTU fault. It looks as though they took off before both hydraulic systems had balanced. Noise due to one engine being started and up to full operating condition before the other.

[@Sterlingjob]

Yeah I looked through the troubleshooting TSM and it points to the ptu manifold or something similar. If they had an engine pumps off they would not take off

[@233kosta]

My guess would be a pressure sensor in one of the hydraulic systems fed false readings or something like that and after take off the pilots cut the PTU (they get a warning light somewhere I think) or the sensor returned to normal after take off, or the landing gear was causing a pressure difference. Not sure which one though. If it's common, I'd bet on a sensor.

[@norbert1636]

This is completely normal, Boeings' PTU works airborne only when both engines are on. Difference between green and yellow hyds must've been good enough for the pilot to take off. Do you think the pilot would accept take off clearance if he'd suspect flight controls failure? ;)

[@Sterlingjob]

Not it’s not normal at all. Airbus is not Boeing and vice versa.

[@norbert1636]

@@Sterlingjob true but still I don't thing that pilot would take off if there'd be something wrong with flight controls and check A320 overhead panel HYDs. EICAS screens are switchable, pilots could miss checking hyds so they had to manually run PTU

[@Sterlingjob]

norbert1636 Firstly he won’t hear the ptu and secondly it would only possibly be a memo message

[@Sterlingjob]

norbert1636 it’s not eicas it’s ecam. You can’t run the ptu manually as that would be a system down therefore not despatchable

[@norbert1636]

@@Sterlingjob of course ecam, my bad, realized after publishing the comment. So why airbuses have PTU button in the overhead panel? I'm better with boeings so asking like reariously, not cocky or arrogant sarcasm :)

[@kearneyboy]

No fault condition here, PTU barking to equalise Y/G circuit pressure imbalance. Differential pressure equalises on gear up and the PTU stops barking when 3000psi set point achieved on both circuits.

[@Sterlingjob]

Incorrect, both engines should be producing 3000psi. Ptu should not be active unless the gear is going up, there is trouble shooting for continuous running of the ptu

[@kearneyboy]

Sterlingjob Do you think there is a sensor fault on the control side or differential imbalance causing it to run on? Agreed 3000 at pumps. I would have said its unusual for the PTU to run with both engines up but not necessarily a fault condition with the PTU itself. I would imagine it would have flagged the ECAM. Interesting vid all the same.

[@Sterlingjob]

Jordon Kearney The fault could either be internal or external leakage, engine driven pump, hp filters, priority valve or the ptu manifold ! No pressure sensor as far as I am aware

[@kearneyboy]

Sterlingjob Yeah it would seem that one side is struggling. Sorry I should have been more specific with my reply. I was referring to the possibility of a secondary fault causing the observations on the PTU. Like the vids, interesting channel. Subbed👍

[@Sterlingjob]

Jordon Kearney I should do some more !

[@syuheimorita]

Its sounds like my dog.

[@karlbbb]

This is actually incorrect. The PTU logic states (among other things) it will only operate if both engine master switches are ON or OFF. Therefore if a single-engine taxi is being done, one of the master switches will be OFF, inhibiting PTU operation.

[@borkjohnsen1924]

This is completely normal

[@Sterlingjob]

Bork Johnsen This is certainly not normal is this situation. The PTU should not continually run with all systems normal.

[@borkjohnsen1924]

Sterlingjob It's probably just a bug, or the hydraulic pressure not stabalising. I have been on flights with a PTU running for a long time, and some where it just goes on for a few secounds. If this was a fault, the pilots would at least have aborted the take off.

[@Sterlingjob]

It's either the ptu or the hydraulic manifold at fault or an engine driven pump. I told the crew after as I'm an engineer.

[@sumaket]

Bork Johnsen Since the PTU adjust hydraulic pressure, likely they didn't see any drop on the screens. Nothing serious since "fail safed" but i think Sterlingjob was right to report it. I'm sure not gonna thrust a cabin crew member for reporting mechanical hazards...cheers guys.

[@alexandrosmarkoglou2838]

+Bork Johnsen completely not normal normal is five or six seconds

[@duhimj5536]

Am I the only one attracted to the look of the wing with the shades on it and highlights?....what's wrong with me ._.

[@chiccoka]

ptu Start if there is 500 psi difference between yellow and Green system or vica versa. Maybe 1 of the side EDP was faulty

[@Sterlingjob]

TASK 29-23-00-810-805-A Continuous Running of the Power Transfer Unit (PTU) After Start in Sequence of Engine 1 and Engine 2 1. Possible Causes - PTU SOL VALVE ( 3012GL ) - MANIFOLD,PTU ( 3015GM )

[@crazypilot7577]

Sounds like my dog in the backyard.

[@tjfSIM]

Just out of interest, why would the engines being in the FLEX detent make any difference to a faulty PTU?

[@Sterlingjob]

It wouldn't

[@tjfSIM]

+Sterlingjob Ok - I was curious because you said in your description you thought it would turn off when the engines were at FLEX, that's all.

[@Sterlingjob]

+tjf4375 flex, as in takeoff power etc.

[@tjfSIM]

Yes, I know what flex is. I was asking about why it would affect a faulty PTU.

[@Sterlingjob]

+tjf4375 perhaps at take off power it might decide to behave itself which it obviously didn't.

[@Sterlingjob]

You would only have the PTU running if your taxiing on 1 engine only and the PTU was switched on. With both engines running this should not happen. There is trouble shooting for continuos operation of the PTU.

[@realgeek001]

Dog: woof woof woof woof Plane:*plane repeats* WOOF! WOOF WOOF WOOF WOOF

[@alexandrosmarkoglou2838]

Its not PTU its a crazy dog in the AVI-Section

[@marcdelaloy9080]

Not a PTU fault just a PTU continuous running!

[@Sterlingjob]

Ptu should not run like this with both engines running

[@andrewbowring1298]

Sterlingjob it will do if the system is under a high load

[@rodjamesranger7537]

I have known these to continue barking even after take off.

[@77peluchito]

Today it did that for 3 hours flying on volaris from Tijuana to colima. Of course I was seated right over the wing.

[@edfromchowderheads1312]

I knew I left my dog somewhere.

[@azotanamonu]

Are there the IAE V2500 engines?

[@world-voyager]

Nope cfm 56

[@irwinriolinus6235]

u dont get to hear this annoying noise on any Boeing aircraft...

[@Sterlingjob]

You don't on airbus unless there is a problem dufus

[@irwinriolinus6235]

bullcr@p...i hear that noise in most flights, about half of them

[@Sterlingjob]

Irwin Riolinus Only on engine start/ shutdown or gear up or down.

[@ifly7777]

But i like the sound.

[@topher1976au]

Rubbish. This is not a fault!

[@233kosta]

I'm guessing this comes straight out of the Airbus manual. I s'pose they know best

[@lovejetfuel4071]

Typical airbus, when I landed at Manila one time we were waiting for 45 min for our gate to clear, could hear the ''barking dog'' the whole 45 min while on the ground

[@OCAviation]

When landing gear closed PTU make a sound too

[@al380aviation]

Ha ha funny, the baby seemed pissed off, I love the Airbus A320/A319 aka " barking dogs "

[@ulysees-31]

Could it be a Stuck PTY SWITCH THING

[@Persephone_]

The PTU is managed automatically!

[@Sterlingjob]

The_PYTHON_Factor Unless you turn it off

[@Persephone_]

Sterlingjob Well done...

[@CattoGD]

The PTU is barking at the baby to shut the hell up

[@timothy.niklas]

The pilots have forgotten to put on the yellow hidraulic pump

[@Sterlingjob]

1year flightreport&planespotting I’m sure there would be a config warning and besides, why would the drivers turn off the pump? Those pumps stay on all the time

[@world-voyager]

Yellow hydraulic pump is turned on for one engine taxi only, the rest of the time it is switched of and only usually turned back on after both engines shut down so they have a working parking break till the chocks are in place

[@andrewpoure3159]

So what does it mean when the PTU is heard during approach?

[@Sterlingjob]

Gear down you will hear the PTU but after that it should go quiet.

[@Sterlingjob]

Tut 500psi difference....tut!

[@Sterlingjob]

That noise you make when someone does something wrong or doesn't know...tut!

[@Sterlingjob]

What point?!

[@Sterlingjob]

You will hear the ptu on gear retraction or anytime there is a 500psi difference.

[@233kosta]

Makes sense.

[@BelfastFlights]

What airport????

[@Sterlingjob]

Prague

[@JT8D200C]

is there a dog on that plane

[@simulacrae]

The only fault here is the parents taking a baby on a lane.

[@flyingtuvi]

Noisy flight, crying babies and barking dogs

[@droid3030]

Nothing wrong with the ptu

[@Sterlingjob]

Apart from it shouldn't be working with both engines and no hydraulic demand!

[@sumaket]

Sterlingjob Yep i agree. Since it stopped with the gear retractation, maybe there was some fault in the gear system.

[@Sterlingjob]

I think the troubleshooting points to the high pressure manifold or the ptu itself

[@Sterlingjob]

You cannot defer an EDP. The only pump you can defer is the yellow pump.

[@Sterlingjob]

CFM56 on all easyjet aircraft.

[@juliabohme3735]

I only hear the f...ing screaming of this child so the real interesting goes in the background.

[@christiantheo1]

Lol how enoying I was on a ryan air one time and it sounded like a motorbike engine lol

This is not PTU fault! Be shure when PTU was fault the start was not allowed. Just read something about

[@Sterlingjob]

Err...it is a PTU fault.

[@Sterlingjob]

A320 trouble shooting guide!

[@xaviersavedra711]

The baby ruins it. Can you reupload with the baby edited out?

[@golbalhelmut8442]

Xavier Savedra it is the right of babys. 😉

[@olliesutton1804]

Ive heard this while taking off before 😬

[@kurtsvensson4362]

So?

[@josiah5380]

the baby does not like the PTU

[@sbentjies]

#$@*#& Airbus...I didn't have that tonight but the brake shuttle valve slamming shut right under us. This renews my hatred of them

[@Sterlingjob]

+sbentjies Well isn't that what a shuttle valve is supposed to do? These aircraft are much less labour intensive than the 737. 9/10 i have an easy time with these aircraft. Better thought out than a boeing.

[@sbentjies]

+Sterlingjob I've never heard something slam shut like that on a Boeing. This isn't a Boeing vs Airbus argument, just didn't sound like the kind of noise that an airplane should be making from a mechanical viewpoint. That said now I know to expect it.

[@youwhot]

Not in my experience

[@ianlivesey2889]

Normal in some cases

[@Sterlingjob]

This isn't normal!

[@lil_fireman]

jjajajaja pense lo mismo amigo! : )

[@Airbus_a320_lovers]

Is not fault si pressuring a hyd not in pressure If it was fault you can't take off

[@Sterlingjob]

LEONARDO BASSI The ptu should not be running with both engines and pumps running, if you look in the TSM there is an entry for unwanted ptu operation

[@Airbus_a320_lovers]

@@Sterlingjob Yes but if it was damaged or something I think the pilot they are not going to takeoff?

[@Sterlingjob]

LEONARDO BASSI only if they get an ecam message

[@Airbus_a320_lovers]

@@Sterlingjob if is turned on in the ecam the see: HYD PTU

[@Sterlingjob]

LEONARDO BASSI not if it’s a fault message

[@pjg3311]

easyjet 😅😅😅

[@fritzpichler775]

Babies should be illegal!

[@felixapps5523]

hahahahahhahaha thats halerious!

[@samuel_-5150]

Its mearly a manufacturing fualt nothing serious

[@Sterlingjob]

With which component?

[@bencalhoun8216]

Its easy jet. What do you expect? Of course theres a fault and a crying baby!

[@abecoulter18]

easyjet always seem to be faulty and falling to bits

[@joewilsonwingflex3752]

Abe Coulter fly for easyJet then

[@pjg3311]

easyjet is the worst airline ever