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-   -   Interesting scenario A320 (https://www.pprune.org/tech-log/600138-interesting-scenario-a320.html)

pineteam 30th September 2017 17:29

Hello Vilas,

You are totally right. Thank you for reminding me. That's a good point. I was suggesting that cause I believe if you do the standard Procedure of putting TOGA and calling go around the PM might act blindly like a robot and jump on the flaps lever up. Pressing the approach push button and open climb will cancel the approach so no risk to dive to the ground. But I hear what you say. It's not the smartest move.:}

learner001 1st October 2017 04:43

When going around, the speed is yours again . . .

Kind regards.

JuniorWoo 1st October 2017 09:33

In a non standard situation like this, it's often a good idea to look at the configuration and quickly agree a safe plan prior to the actual G/A. Avoids PM's jumping like a robot...

vilas 1st October 2017 14:54

With decelerated approach being the order of the day go around with less than landing flap setting should form part of approach briefing. Normally airlines do revise GA procedure but that doesn't cover this aspect.

Dupre 1st October 2017 15:46

Bkdoss,

Yours is a very good question.

My FCOM says:
GO AROUND........... ANNOUNCE
FLAPS lever..........SELECT AS REQUIRED
Retract one step of flaps

It makes no allowance for a go around in flaps 1 and therefore, requires retraction of flaps, potentially putting the aircraft in an undesired state.

Moreover, the standard callout is "GO AROUND - FLAPS". not GO AROUND, not GO AROUND STANDBY FLAPS. This leaves little ambiguity on what Airbus wants to happen.

My particular airline SOP has no special case for go around with less than landing flaps.

So, having said all that, what would I do in this situation?
I would call GO AROUND STANDBY FLAPS, and consider myself as knowingly breaking an FCOM procedure, that was badly written and doesn't account for my situation. But better to not follow the FCOM than get the aircraft into an undesired state.

Then, at S speed, call Flaps Zero.

Dupre 1st October 2017 16:00


Originally Posted by akindofmagic (Post 9908880)
Airmanship. Have you heard of it?

Akindofmagic, a completely useless and negative post. Your tone will make pilots on here think twice about posting questions, for fear of that kind of snide response.

mcdude 2nd October 2017 00:46

The scenario implies the aircraft is on final approach because by definition a go-around is only issued to aircraft on final approach therefore the technique to "select a speed below the manoeuvring speed of the present configuration" is probably not being used correctly or the scenario is invalid. Also - only CONF 2 & CONF 3 are certified for go-around (unless above MLW) hence you really do need to apply some airmanship in this scenario.

Check Airman 2nd October 2017 01:58


Originally Posted by Dupre (Post 9909941)
Bkdoss,

Yours is a very good question.

My FCOM says:
GO AROUND........... ANNOUNCE
FLAPS lever..........SELECT AS REQUIRED
Retract one step of flaps

So, having said all that, what would I do in this situation?
I would call GO AROUND STANDBY FLAPS, and consider myself as knowingly breaking an FCOM procedure, that was badly written and doesn't account for my situation. But better to not follow the FCOM than get the aircraft into an undesired state.

Surely you can't expect the SOP to cover every conceivable event. The GA SOP is written for the worst case scenario- a low level GA at mins.

I think it's reasonable for Airbus to assume that you can handle one from 2500ft without having to hold your hand. Would you then be inclined to file a safety report because you violated the SOP?

For what it's worth, I willingly broke my SOP 2 nights ago, as I landed with the wipers on in the rain. Poorly written SOP.

Bkdoss 2nd October 2017 01:59


Originally Posted by vilas (Post 9909888)
With decelerated approach being the order of the day go around with less than landing flap setting should form part of approach briefing. Normally airlines do revise GA procedure but that doesn't cover this aspect.

So true Vilas. That was where I was getting to. I have considerable time on the Airbus, and am someone who keeps revisiting the FCOM regularly and was surprised that I never thought about this scenario in years. With so much emphasis on cost cutting and fuel saving these days, decelerated approaches are the order of the day. The airline or the manufacturer, I feel, has to discuss about this scenario in a little more detail, so that someone doesn't screw a go around.

Ollie Onion 2nd October 2017 02:03

Just leave it in Flap 1' call Go Around 'NO FLAP' or something to that effect, this is what you are paid for. The published missed approach procedure is there for the worst case scenario and some of the actions are only appropriated in that scenario. In your scenario you won't have the gear down either but I assume you will still call 'positive climb' and 'gear up'. Makes the procedure to fit, we have a certain missed approach in my operation that has a speed constraint of 160 kts about 10 mm passed the missed approach point so if we go-around from flap 2 we will not retract any flap to enable compliance with that constraint.

Bkdoss 2nd October 2017 02:12


Originally Posted by Check Airman (Post 9910611)
Surely you can't expect the SOP to cover every conceivable event. The GA SOP is written for the worst case scenario- a low level GA at mins.

I think it's reasonable for Airbus to assume that you can handle one from 2500ft without having to hold your hand. Would you then be inclined to file a safety report because you violated the SOP?

I understand this. But the problem stems from the fact that there are many operators in the world, including mine, where they induct Direct Entry Captains from a different type and release them after 100 hrs of training on the left. To be honest, with some newly released captains in my company, airmanship and situational awareness is virtually non existent. In their defense, they are transitioning from a Pilots' aircraft like Boeing to a Techies' aircraft 'Airbus' and they find it difficult to cope up with the automation initially. In such a context they condition themselves to follow SOP religiously so as to keep themselves well within the safety envelope.

So now if I were to execute a Go Around from that altitude with such a PM, he'd retract flaps because that's what the SOP says. The aim of SOP and FCOM procedures Is to keep even the less experienced guys within the safety envelope. Keeping that in mind, I find it prudent that a small note of caution on this scenario should be added, which would give everyone more awareness of what to expect and how to react.

Bkdoss 2nd October 2017 02:23


Originally Posted by Dupre (Post 9909941)
Bkdoss,

Yours is a very good question.

My FCOM says:
GO AROUND........... ANNOUNCE
FLAPS lever..........SELECT AS REQUIRED
Retract one step of flaps

It makes no allowance for a go around in flaps 1 and therefore, requires retraction of flaps, potentially putting the aircraft in an undesired state.

Moreover, the standard callout is "GO AROUND - FLAPS". not GO AROUND, not GO AROUND STANDBY FLAPS. This leaves little ambiguity on what Airbus wants to happen.

My particular airline SOP has no special case for go around with less than landing flaps.

So, having said all that, what would I do in this situation?
I would call GO AROUND STANDBY FLAPS, and consider myself as knowingly breaking an FCOM procedure, that was badly written and doesn't account for my situation. But better to not follow the FCOM than get the aircraft into an undesired state.

Then, at S speed, call Flaps Zero.

That's an excellent suggestion Dupre. I would consider doing that too in the future. It's just that on ground everything makes sense but if someone had to experience this first hand, he'd be caught off-guard. At least I know that I have some defense mechanism having thought about this and discussed with people like you on prune.

Check Airman 2nd October 2017 02:27

Fair point BKdos, but wouldn't the more experienced pilot in the other seat catch the error? Is he not also qualified?

I've never seen the scenario play out in the sim, but I imagine the instructor would forgive the PF for calling out "GA Flaps". The PM would get scolded for actually doing it though.

I agree that SOP is written to cover less experienced pilots, but some degree of proficiency has to be assumed, right? The SOP doesn't say to adjust the temperature if it's too low, but somehow, we manage, right?

Bkdoss 2nd October 2017 02:27


Originally Posted by vilas (Post 9908927)
BK
There are additional procedures like Landing with slat/flap jam or overweight landing. On ground in spare time if you question the why and how of these procedures it becomes very easy to apply them when the need arises and helps keep track of what one is doing. Otherwise mere button pushing with ECAM can leave one unsure of what he has done.

Thanks for the suggestion, Vilas. I keep doing that all the time. This question that propped up in my mind is also a product of such pondering. I'm sure after this discussion, i have this scenario covered and under my control.

Master of the House 2nd October 2017 03:18

Like you said nothing wrong with doing it but I'd be taking flap 2 in this situation for sure. My company even mandates taking the next flap if flying below current manoeuvre speed. I think it's a good idea usually.

Bkdoss 2nd October 2017 15:57

That's a good idea. Solves a lot of troubles.

vilas 2nd October 2017 17:49

BK
Once the procedure is understood in it's entirety then it's applicability at a different stage should be included in approach briefing so nothing is left to chance or confusion during execution. Airbus go around was discussed in 2009 Toulouse Instructor meeting. I had quoted that one year ago. The Emirates Dubai accident may have been avoided if the variation in the go around procedure after touch down was included in the briefing. They carried out normal go around actions which doesn't advance throttles to TOGA if the aircraft has touched down. So with only idle power the aircraft came down and the PM thought he was being smart had retracted the gear quickly without checking sustained climb. That is another popular mistake because people think they may forget to raise the gear. FMA is more important. It ensures everything from TOGA to FDs in GA.

Check Airman 2nd October 2017 21:00

Vilas, you're obviously knowledgeable on the matter at hand. Your last post mentions (rightfully) that EK in DXB may have been avoided if briefed. That's true for the vast majority of accidents. At what point do you stop briefing though?

Someone's mind is likely to start wandering about a minute into the approach and landing dissertation that some people give. I find it more effective to spend most of the time focusing on what's likely to go wrong, instead of going down the never ending list of what could go wrong.

bodypilot 3rd October 2017 03:31


Originally Posted by Bkdoss (Post 9910613)
I have considerable time on the Airbus

are you sure about this?

Bkdoss 3rd October 2017 10:44


Originally Posted by bodypilot (Post 9912151)
are you sure about this?

Depending on what you understand by considerable time, the answer could range from a ‘No’ to a ‘Maybe’ to a ‘Yes’. Jokes apart, if you were trying to be cynical with your remarks, I’m sorry, I’m not someone to be offended. Certainly, I work my ass off to know about the systems and the aircraft that I fly. But I’m sure there would always be something that I might have glazed over or never really thought about. And if that happens, any day in my flying career, be it the last day before I hang my boots, I’d still try my best to clarify and learn and I’d be brazenly unapologetic about it.


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