QF32 388 - emergency landing in SIN after Engine failure

[jb747]

The problem being that the vast majority of comments made on pprune are made by people who have no qualifications whatsoever. MS Flight sim seems to be the limit for some, and even the ones who appear to be pilots often come out with the silliest of statements.

 

[Danger]

ATW has what would appear to be a fairly balanced, well-researched piece here. It is written by The West Australian's Geoffrey Thomas. It notes the irony of how some of the A380 crew from QF32 were actually flying on the QF6 drama on Friday night.

 

[drron]

But aren't we all experts here!

Posted from my armchair.

 

[simongr]

Just announced 72 hours more grounding for the fleet. 3 engines being replaced with spares.

 

[markis10]

Just announced 72 hours more grounding for the fleet. 3 engines being replaced with spares.

I am keen to see what SQ do!

 

[oz_mark]

I am keen to see what SQ do!

SQ are reported to be replacing one engine (and LH one), per the ATW link a few posts back (and a few other reports I have seen around the place.)

 

[markis10]

SQ are reported to be replacing one engine (and LH one), per the ATW link a few posts back (and a few other reports I have seen around the place.)

I am still keen to see what they do, given they have the larger/oldest fleet and were also the first to experience an IFS on the A380, if QF are replacing 3 and have one dead from a fleet of 6, it begs the question........

 

[jb747]

But aren't we all experts here!

Well, I am, and, perhaps strangely, the general sense here is better than prune. I guess people here don't try to make out that they are something they aren't....sadly lacking elsewhere.

 

[Jacques Vert]

Well, I am...

And we are all the better for your input jb747!

 

[John Reid]

I'm very much inclined to trust QF on this one. There have been so many 'in the heat of the moment' quotes reported and armchair experts giving their opinion in the last five days.

It seems to me that QF are taking the right and proper approach to this. An extraordinary and unexpected situation was dealt with and managed by an exceptionally skilled crew who got the plane on the ground, in (mostly) one piece and no injuries/casualties. That in itself is something to behold. Top marks to all the crew for this.

We will just have to wait for the investigation to determine what has happened and what will be done to ensure it doesn't happen again. Until that time, there is very little point in uninformed armchair commentators sprouting opinions.

Trust the people who know what they are doing and support an airline who actually takes these situations absolutely seriously.

 

[docjames]

Well, I am, and, perhaps strangely, the general sense here is better than prune. I guess people here don't try to make out that they are something they aren't....sadly lacking elsewhere.

pprune is rubbish and I barely believe a word that is written. For the most part, it's about 999,999,999 posts by laypeople to 1 post of a (commercial or military) pilot.

Edit: not that i'd have any idea, and am not a member.

 

[oz_mark]

I am still keen to see what they do, given they have the larger/oldest fleet and were also the first to experience an IFS on the A380, if QF are replacing 3 and have one dead from a fleet of 6, it begs the question........

Well, they haven't replaced it yet...

 

[ethernet]

RR shares are down again, as they stay mum.

I would have thought the Colgate / Tylenol /Kraft peanut butter would have taught them something - appears not. Sorry guys, Gen X'er take silence as a guilty, and gen X hedge funds sell first and ask questions later.

With RR having 1/3 of a disc, they have had time to time to see metal fatigue, but if it was bearings/oil fire, then that could have induced an overspeed condition. Further searches reveal RR (USA) did do some serious research on the super-alloy, leading one to think RR are professional.
Given the other planes are flying, and QF mostly tells the truth, we ask why they might have an oil leak, and the others not.
Could it be something as simple as oil hose lines not adequately tightened, because the tension wrench was out of calibration or lb/kilo/Nm confusion? Or the oil / grease they thought they were using was of a different specification?
If you buy that - then if it was true at one stage, bingo excessive wear, explainable fire, the rest follows. That would make it a quick win-win for all.

They have engines with leaks, so if RR wants to stop the bleeding, they need to explain the leak - fast. They also need to explain how hard it is to see the leak, the blog below thinks that is NOT easy. I would also test the local av-gas.
Nothing new on Qantas A380 fleet grounded following Trent 900 failure (Update2) - FlightBlogger - Aviation News, Commentary and Analysis which is a good place for technical people.

 

[oz_mark]

Although I have never seen a clear explanation of just what the techical difference between the -970 and the -972 models are, there is a chance that the fact that QF use slightly different engines to SQ an LH may account for some differences in what was found.

Or maybe QF just looked harder

 

[mannej]

pprune is rubbish and I barely believe a word that is written. For the most part, it's about 999,999,999 posts by laypeople to 1 post of a (commercial or military) pilot.

Edit: not that i'd have any idea, and am not a member.

Well Steve Purvinas seems to be a member:shock:

 

[medhead]

QF32 A388 makes emergency landing in SIN after Engine failure

Although I have never seen a clear explanation of just what the techical difference between the -970 and the -972 models are, there is a chance that the fact that QF use slightly different engines to SQ an LH may account for some differences in what was found.

Or maybe QF just looked harder

Geoffrey Thomas attributed the difference as being a higher thrust rating of the qantas engine on sunrise this morning. I think he said 72000 lb vs 70000 lb, the extra thrust required for take off from LA in some configurations, such as more cargo.

I don't know if that means anything, just repeating what was said.

 

[jb747]

My understanding is that the engines are mechanically identical, with just the software controlling the max rating.

Full rating isn't used all that often either. I've used it off LAX 24L a couple of times, and once in Melbourne on a nasty, windsheary day. Normally, even at max weight, you have substantial levels of derate.

The engine is, I believe, rated at 75,000 lbs, so I find it hard to believe there would be a substantial difference between operation at 70 or 72 k.

 

[oz_mark]

Rolls-Royce reports A380 engine progress

Rolls-Royce says it has made progress in understanding why one of its engines exploded on a Qantas plane flying out of Singapore on Thursday.

It's now clear that the problem is specific to the Trent 900 engine on the Airbus A380 aircraft, the company said in a statement on Tuesday.

Rolls-Royce reports A380 engine progress


(Makes it sound like a design issue)

 

[medhead]

QF32 A388 makes emergency landing in SIN after Engine failure

My understanding is that the engines are mechanically identical, with just the software controlling the max rating.

Full rating isn't used all that often either. I've used it off LAX 24L a couple of times, and once in Melbourne on a nasty, windsheary day. Normally, even at max weight, you have substantial levels of derate.

The engine is, I believe, rated at 75,000 kgs, so I find it hard to believe there would be a substantial difference between operation at 70 or 72 k.

The guy was implying that the higher rating created extra stresses that SQ and LH didn't experience. That would seem plausible with the same mechanical engine and different software (from a theoretical POV). But doesn't stack up with the engine being rating higher and also the small 2k difference and of course your knowledge and experience.

Thanks for clearing that up.

 

[ozbeachbabe]

I am still keen to see what they do, given they have the larger/oldest fleet and were also the first to experience an IFS on the A380, if QF are replacing 3 and have one dead from a fleet of 6, it begs the question........

.....that with the law of averages if SQ have 11 A380's wouldn't it be likely that they have more faults than QF???

Although I have never seen a clear explanation of just what the techical difference between the -970 and the -972 models are, there is a chance that the fact that QF use slightly different engines to SQ an LH may account for some differences in what was found. Or maybe QF just looked harder.

If SQ looked too hard they might find something & would therefore have to do something about it ie keep an A380 on the ground until fixed & we all know that ain't cheap! A cynical person may say their logic would be to make a token engine change to one of their A380's which would then infer that they've check all 11 A380's in their fleet & all is fine & dandy! :shock:

Well Steve Purvinas seems to be a member.

What's his handle, Steve Purvinas 007?



It never ceases to amaze me how teflon coated SQ are when it comes to incidents and accidents. IMHO very few of the travelling public and yes, even the media would even be aware SQ have had a fatal crash SQ006 in Taipei killing 82 people because they chose to take-off in a typhoon when all other airlines cancelled their flights that night because it was too dangerous. :evil:

Rushing to Die: The crash of Singapore Airlines flight 006 - Part One, Airline Safety, Airline crashes