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-   -   EFATO ECAM Actions (https://www.pprune.org/tech-log/487305-efato-ecam-actions.html)

PT6A 5th June 2012 20:21

EFATO ECAM Actions
 
What is the policy in your company for when to start the ECAM actions?

I know most? airlines start them above 400' and when the engine is secure (engine master off and 1st agent discharged) and above acceleration altitude, accelerate and clean up... then once open climb and MCT selected continue with the ECAM.

But then US Airways for example...

Don't do any actions until your established in MCT and OPEN CLIMB (except for some exceptions)

Any other companies do it different? Just got my curiosity going!

Natstrackalpha 6th June 2012 14:34

Not intending to be picky PT6 (with my record?!) but your first method, is the same as the second example - or did I miss yet another point.

PT6A 6th June 2012 14:46

No Natstrack....

Was my fault, what I should of said is that my operator and i think most operators start the initial actions above 400' and US Airways don't start them until they have selected MCT and Open Climb (ie they dont secure the engine first, except for severe vibration etc)

Make more sense?

FourTrails 6th June 2012 15:09

Generally (but there are exceptions) once above 400ft and failure has been agreed and PF has called for 'ECAM actions'.



The 'engine secure' stuff is when the engine has been secured, and given that call (PNF) and above acceleration altitude (typically 1000agl) the ECAM is stopped, 'push to level' is selected and aircraft accelerates to permit flap retraction followed by climb away at green dot & thrust to MCT.
Then complete ECAM etc....

PT6A 6th June 2012 15:26

FT, thats correct and the way we do it.

Was just curious if anyone else was doing it the US airways way of not doing anything until your cleaned up and in MCT OPEN CLIMB.

Microburst2002 6th June 2012 15:56

Now everybody seems to follow the airbus policy of the 400 ft and engine secure or accel height, whichever comes later, for accelerating.

Speaking of the ECAM:
The EFATO ECAM is the same as the cruise or any other flight phase. which makes me wonder if it is a good idea to wait those 30 secs in the hope of having a quick relight. Is it likely that you will recover an engine like that, in take off, after a flame out? I mean, wouldn't it be better to ignore that and go on with the rest of the actions? Specially if damage is obvious...

PT6A 6th June 2012 17:06

So it is just US Airways doing it different? That seems to be the theme.

They don't issue the FCOM's or have them on their aircraft, but completely devised and published their own operational and procedures manuals.

OPEN DES 7th June 2012 02:55

Hi PT6A,

If I remember correctly Iberia does the same as US Airways: no ECAM until established in the final segment, i.e. MCT/OP CLB/green dot except for ENG FIRE/ENG STALL.


The EFATO ECAM is the same as the cruise or any other flight phase. which makes me wonder if it is a good idea to wait those 30 secs in the hope of having a quick relight. Is it likely that you will recover an engine like that, in take off, after a flame out? I mean, wouldn't it be better to ignore that and go on with the rest of the actions? Specially if damage is obvious...
True. But remember that the 30sec has no countdown timer because there is a bit of judgment involved:

Many times you´ll hear that the FADEC/ECU will attempt an autorelight for 30sec, this is not entirely true as it´s a matter of N2 rotation rather than time.

-Below 400ft when ECAM has not been started yet, the FADEC/ECU will attempt an autorelight with dual ignition after the detection of the flame out. Then when no relight occurs before N2 reaches 40% the ignition is discontinued.
-At 400ft, ECAM ACTIONS start with "IGN/START“ to confirm the auto-ignition.
If the relight does not occur before N2 drops below 47 % in this case, then the FADEC/ECU transitions to an auto start sequence.
Here start the famous 30 seconds, you might want to monitor provided that you have some N2 (no damage). Also keep in mind that an autorelight might have started already well before the ECAM was started anyway.
It takes approximately 15 seconds to read the ECAM and retard affected thrust lever to idle Then an additional 5 second delay to read:
• ''If no relight after 30 seconds.... ENGINE MASTER(affected ).....OFF”
• Logically when PNF eyes are back on EWD engine parameters to monitor an eventual relight, the 30 seconds are already gone.

All a bit complicated but in short: no need to time anything! If DAMAGE, forget about the timing all together.
Hope it helps.

Regards

Natstrackalpha 7th June 2012 09:50


No Natstrack....

Was my fault, what I should of said is that my operator and i think most operators start the initial actions above 400' and US Airways don't start them until they have selected MCT and Open Climb (ie they dont secure the engine first, except for severe vibration etc)

Make more sense?

Goddit.........

Microburst2002 7th June 2012 10:08

OP DES

Thanks for that info, I didn't have so much detail about that? Is it FCOM or other source, perhaps?

I have always wondered: When does the 30 sec count begin?

Also recall a simulator, somewhere in the world, where this countdown was in the ECAM itself. Not in the sims I use now.

This 30 secs and a low accel alt make it very difficult to do secure the engine timely.

Which by the way I think it is an important thing. I wouldn't delay it unnecessarily. There are flame outs, there are engine failures with immediate damage and there are engine failures with little damage but potentially much more damage if not secured. Securing the engine timely can save problems and a lot of money too.

Right Way Up 7th June 2012 10:18


except for some exceptions
This seems to be the key, what are US Airways exceptions?

Blinkz 7th June 2012 11:05

You are all missing the most important criteria for the start of ECAM. The aircraft MUST be stabilised and climbing away.

At my company primary ECAM actions occur at 400ft AGL AND when the aircraft is stabilised. The primary actions depend on the failure, with damage it is up to the first agent. If its just a flame out it could be THR LVR to idle and ENG MODE to IGN.

The 30 sec countdown depends on the MSN of the aircraft, the new ones do it for you.

We then wait until MFRA, clean up and once MCT is set then we continue ECAM actions.

I think not doing any ECAM until MCT seems strange, you need to deal with fire/damage asap.

PT6A 7th June 2012 13:21

US Airways Pilot Handbook
 
2d-12 Takeoff

Loss of Thrust At or Above V1

2d.8 Loss of Thrust At or Above V1

2d.8.1 General. In the event of a single engine malfunction accompanied by a loss of thrust at or above V1, follow the “Loss of Thrust At or Above V1” guidance.

If the engine is still producing normal thrust (such as an engine fire or compressor/stall), clean up using the normal takeoff profile except comply with runway specific “Engine Failure - Takeoff” procedure (if published); otherwise, fly runway heading.

Considerations. The PF must fly the aircraft and not be distracted trying to analyze the problem while the aircraft is in a critical phase of flight.

Normally, the safest course of action is to accomplish the applicable ECAM/ QRH procedure(s) after the flaps are up and the desired climb speed has been attained. However, under compelling circumstances such as severe vibration, adverse flight characteristics, etc., it may be necessary to accomplish the ECAM/QRH procedure(s) as early as 400 ft. AFE.

Takeoff Performance. Takeoff performance using an assumed temperature is predicated on an engine failure, thus advancing thrust may not be necessary to maintain safe flight. However, additional thrust is available and must be used if necessary to sustain safe flight.

OPEN DES 8th June 2012 11:41

@microburst

Remember that EOAA is a minimum. Max EOAA is normally limited by 10min at TOGA so no rush to secure the engine.
Source is airbus instructor standardisation meeting 2012 and instructor directives 2008 I recall.
I am unaware of an automatic 30sec countdown, timing is not always relevant, despite using the latest standards sims.

Take care!!!

Right Way Up 8th June 2012 21:43

Blinks,

Eng rundown.........do you not select master off?

PT6A, thanks for the info. Sounds too complicated for me.....the handbook could lead crews to finding out the fire is inextinguishable too far from a runway for my liking.

Blinkz 8th July 2012 21:50

Nope, eng mode selector goes to IGN and the thrust lever goes to idle if we've had a run down with no damage. This allows the FADEC to attempt a relight.

MD83FO 7th May 2014 13:02

on the hudson river final report it said very clearly that the auto start would begin when the thrust lever is set at idle, a step which was accomplished unnecesarily as both engines were running at an auto limited thrust by the fadecs.
is this engine specific ? or are there too many miths running around.

i think what OD states makes more sense.

ANCPER 7th May 2014 13:21

Don't think it's limited to US, I've flown for 4 AB operators and all did nothing until clean unless Fire/Severe dam/Separation. 2 of the 4 Boeing as well and the same deal.

vilas 7th May 2014 13:29

What OP DES has stated is the Airbus recommended procedure and barring one odd exception everybody follows it. From that calculation of 30 seconds from engine mode selector is put to ignition a slight pause before putting engine master off is all that is required. Does anyone know the logic behind the US airways procedure? and what is their One engine acceleration altitude?

TyroPicard 7th May 2014 20:12

PT6A
It looks to me as if that section of the manual (2d.8.1) deals with an engine malfunction where the engine is still producing thrust. In which case their procedure makes absolute sense.

Can you find

the “Loss of Thrust At or Above V1” guidance.
?


Is there a 2d.8.2 or 3 or 4 etc?

Either I am barking up the wrong tree, or everyone else is!

paradisefound 8th May 2014 13:13

Take off Thrust limit
 
@ OPEN DES

"Max EOAA is normally limited by 10min at TOGA so no rush to secure the engine."

My understanding is that Take off Thrust (TOGA or FLEX) is limited to 10 minutes.
There was a change in the FCTM which came about 4-5 yrs back. I can't seem to find it now.

Can anyone confirm or give any documentary reference.

Thanks

vilas 8th May 2014 13:59

Microburst & Blinkz
In Airbus there is no automatic countdown of 30 seconds from engine mode selector to ignition. The countdown is available only from fire button push for 10 seconds for first agent discharge. This includes even the latest aircraft.

FlightDetent 8th May 2014 16:03

2 OPDES: "If no relight after 30 s .... "

The line only appears, when after 30s the ENG FAIL condition is still there. Once you see this ECAM blue line, the 30 had already passed (otherwise it is not displayed). Then:

One shall look at the engine if perhaps relight is actually in progress...
. if it is > just stand by and wait/hope for the engine to come alive
. if it is not > proceed as indicated.

In a proper SIM, just observe when "If no relight" line is introduced on the screen. Approx 31 s after the ENG 1(2) FAIL had been indicated.

vilas 8th May 2014 16:29

FD
What is exactly a proper SIM? The latest SIM is 1.8 STD. earlier one 1.7, 1.6 and it goes backward which one are you referring to?

FlightDetent 8th May 2014 17:01

Vilas, sir

let me check what is the current standard ...

vilas 9th May 2014 02:11

Flight Detent
Are you talking about 30 seconds from lift off which in this case is also from engine fail? Below from Airbus:
(When engine fails after V1) since aircraft is in flight phase 4 or 5 the only thing that is triggered on ECAM is "ENGINE START SEL....IGN" all other appropriate procedures beginning by "THRUST LEVER....IDLE" will be shown in flight phase 6 (1500feet AGL) or 30 seconds after lift off. These logics ensure that aircraft is above the required 400 feet AGL before the ECAM procedure is initiated."
Same thing you will observe if engine fails below 1500 feet during go round. The ECAM appears after 30 seconds or at1500 feet. So ECAM ACTIONS themselves appear after this 30 seconds. The timing we are talking starts when we manually put the Engine start Selector to ignition. However the calculation of those 30 seconds given by OP DES is correct.

OPEN DES 9th May 2014 09:07

EFATO ECAM Actions
 
Hi guys, thanks for the feedback.
Nothing to add I think.
KISS:
After putting eng mode sel to IGN: take a deep breath, no sign of relight.. Continue ECAM disregarding 30s.
Some earlier sims didn't have the 30sec mentioned at all. Latest STD: 30sec displayed... But never with a countdown.. Hence some of the confusion.
All the best

vilas 10th May 2014 12:46

john smith
That is not correct. Read OP DES post. This 30 seconds start from when you select Engine mode selector to ignition.

ZFT 10th May 2014 16:20

Vilas,

FYI - Airbus have now released Std 1.9

vilas 11th May 2014 02:49

john smith
You have misunderstood the line. What I and OP DES wrote says it all but I will put it together for you. When engine fails after V1 the ECU detects a flame out and attempts a relight by energising dual auto ignition but since the aircraft is in flight phase 4 or 5 you only see on ECAM ENG START SEL...IGNITION. The full ECAM starting with THR LEVER..IDLE appears at 1500 feet(in phase 6) or 30 seconds after the failure ). These 30 seconds are not the ones we are talking about. After the ignition comes on the ECU does not time 30 seconds but monitors N2. If N2 drops below 40% the ignition is turned off. This is the end of auto relight. Now when ECAM appears and you select mode selector to IGN/START then you time 30 seconds. Here also ECU monitors the N2 and if N2 falls or remains below 47% N2 it attempts another auto start that is why you need to wait 30 seconds from then. When you select the ignition it termed as confirming auto relight.

vilas 11th May 2014 02:56

ZFT
This must be the latest development. I don't seem to locate it. Toulouse doesn't have it. 1.9 manual is not published. Where did you find it? In any case the issue was that there is no self timer for 30 seconds for relight. Because as stated before the ECU monitors the N2 and not the time.

vilas 11th May 2014 03:43

ZFT
Airbus has released last month 1.8b. May be you meant that. There is no 1.9 yet.

ZFT 11th May 2014 07:46

vilas

Airbus standard 1.9 for A320 simulators SB-A320-1.9.0 issue 1 Ref D00626100 was issued by G05 on 24/04/2014 ( I wasn't making any comment on the relight issue, just the latest available standard)

vilas 11th May 2014 09:13

ZFT
Thanks for the reference. I think because of sharklets and many MOIs it was due.

ZFT 11th May 2014 11:22

Vilas,

The significant training impact of 1.9 seems to be ROPS, ATSAW and AP/FD-TCAS.

The AP/FD-TCAS is interesting as this function was recently the subject of an FAA and EASA AD on the A330 and has been mandated to be disabled.

vilas 11th May 2014 12:35

john smith
I quoted what is from Airbus itself. I am sure you have not seen the Airbus reply yourself. You are still confusing two issues Timing does not start from FADEC switching on ignition but from manual selection of Engine mode selector to ignition and . However you don't need to time it because: Reproducing Airbus document



Do I read the chronometer to monitor the 30 seconds? Not required


      But this is not same as what you are saying.

      vilas 11th May 2014 12:44

      ZFT
      The TCAS/FD mode is supposed to be automatic right? I have seen the presentation. At it appeared bit scary because of the time factor involved if auto goes awry. Have you seen 1.9 installed yourself. I have worked on 1.7 and 1.8.


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