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-   -   A330-200 flameout / relight of both engines on approach (https://www.pprune.org/rumours-news/616621-a330-200-flameout-relight-both-engines-approach.html)

sabbasolo 25th Dec 2018 04:24

A330-200 flameout / relight of both engines on approach
 
https://thepointsguy.com/news/a330-s...nes-in-flight/

The A330-200, built in 2000 and flying with the Belgian registration 00-SFU, was bound for Brussels from Kinshasa on December 11 when it experienced a failure of the left Pratt and Whitney PW4000 while cruising at 40,000 ft. The pilots immediately declared an emergency and planned to divert to Djerba, in Tunisia, as a precaution. The pilots, while working the problem, were able to get the left engine to reignite, and chose instead to proceed to Brussels.

The flight proceeded without incident until its approach into Brussels. The Belgian aviation saferty agency BEA is reporting that on approach the right-hand PW4000 failed and reignited multiple times. The pilots landed the plane safely at Brussels and at the time of touchdown both engines were powered.

Though there was no point in the flight in which the plane didn’t have one of its two engines powered, failure of both engines during a single flight is very rare. The 18-year old aircraft is still on the ground in Brussels while the investigation into the incident proceeds.

----------
What could be the common element here? Fuel system?

flyhardmo 25th Dec 2018 07:17

Could possibly be fuel contamination issue similar to this:

https://www.cad.gov.hk/reports/2%20F...0compliant.pdf


Busbert 25th Dec 2018 10:54

Hopefully they can isolate the cause. Engine problems at throttle back can point to super-absorbent polymer (SAP) contamination. The reduced fuel flow causes the fuel temperature in the HMU to increase, dessicating the globules of SAP creating small spheres in the 10-15 micron range that can jam the main metering valves. That was what happened with CX780. Most fuel hydrant trucks have SAP laden filter monitor elements, so the lesson with CX780 will be repeated until the industry learns.

lomapaseo 25th Dec 2018 16:29


...that can jam the main metering valves.
all sorts of bad things can happen when this happens including an engine stuck at high power during landing approaches as well as the opposite (stuck at low power).

SeenItAll 25th Dec 2018 19:06

What should have been the appropriate procedure here? While I know this was not an ETOPS flight, if an engine shuts down during flight -- even if it relights, isn't it appropriate to land at the nearest suitable airport -- especially if the reason for the shutdown is not absolutely known with certainty by the crew. It will be interesting to learn what their thinking was in deciding to continue on to BRU.

lomapaseo 25th Dec 2018 20:52


Originally Posted by SeenItAll (Post 10344394)
What should have been the appropriate procedure here? While I know this was not an ETOPS flight, if an engine shuts down during flight -- even if it relights, isn't it appropriate to land at the nearest suitable airport -- especially if the reason for the shutdown is not absolutely known with certainty by the crew. It will be interesting to learn what their thinking was in deciding to continue on to BRU.

As long as they thought about it, I have no complaints

mrdeux 25th Dec 2018 21:16

I've never understood the logic of continuing if an engine shuts down and you then manage to restart it. It's not as if they shutdown as a matter of course. Something is wrong, even if you don't know what.

douglasheld 25th Dec 2018 21:58


Originally Posted by mrdeux (Post 10344442)
I've never understood the logic of continuing if an engine shuts down and you then manage to restart it. It's not as if they shutdown as a matter of course. Something is wrong, even if you don't know what.

Yes, something wrong, but if you are up in the air, isn't the most conservative action to remain up there? Rather than to try to land overweight. The risk of an engine failure is not something that urgently demands you be on the ground ASAP.

Sailvi767 25th Dec 2018 23:58

The only risk for a overweight landing is blowing fuse plugs. The A330 is designed to land up to max structural Takeoff weight if needed.

mrdeux 26th Dec 2018 00:43


Originally Posted by douglasheld (Post 10344451)
Yes, something wrong, but if you are up in the air, isn't the most conservative action to remain up there? Rather than to try to land overweight. The risk of an engine failure is not something that urgently demands you be on the ground ASAP.

No, but as you don't know why the engine failed (and then relit) in the first place, isn't the risk really more like the Cathay double failure case.

krismiler 26th Dec 2018 01:02

Departing from Kinshasa and problems with both engines would put contaminated fuel right at the top of the list. Icing could be a possibility as could any work done on the engines during the transit.

Start with the most likely and work from there.

Vessbot 26th Dec 2018 02:15


Originally Posted by douglasheld (Post 10344451)
Yes, something wrong, but if you are up in the air, isn't the most conservative action to remain up there? Rather than to try to land overweight. The risk of an engine failure is not something that urgently demands you be on the ground ASAP.

The risk of both engines failing is something that urgently demands you to be on the ground ASAP.

meleagertoo 26th Dec 2018 12:40

What on earth posessed them to continue to BRU after the first failure?
That really is not very smart.

Yaw String 27th Dec 2018 13:36

Use exactly this scenario during linetraining..you regain a failed engine,either after volcanic ash encounter,or for any other reason.
What kind of flight profile would you use for the diversion airport approach?...discussion point only.
Having had a birdstrike engine fail after 4 hours,at top of descent when thrust reduced to idle,inducing severe surge,a descent maintaining some degree of thrust may have prevented the surge.
if you really don't know why an engine failed,then fuel contamination is a possibility.....Whatever,..a diversion to overhead a SELECTED airport,then let down,so that in the very worst case,you have a better chance should the unimaginable happen.
All food for thought,is it not..
Safe and happy flying for 2019..

Johnny F@rt Pants 31st Dec 2018 09:50

Brussels Airlines A330 - both engines failed
 
https://airwaysmag.com/airlines/brus...ngine-failure/

Would you really continue having relit the failed engine? I know I wouldn’t.

CurtainTwitcher 31st Dec 2018 10:09

Already covered in this thread:A330-200 flameout / relight of both engines on approach

midnight cruiser 31st Dec 2018 10:17

Nor me.

That's two extreme opposite approaches to dealing with an engine failure in a few weeks - Norwegian engine failure (just low oil pressure wasn't it?) - spiral down to a place you really really don't want to put a an aeroplane, it's passengers and crew, when a descent in a straight line would put you close to a good diversion field (KWI) ...

And continuing to destination in a twin, after an engine failure.

The sensible approach must be somewhere between (albeit closer to the former option imo) ..

FlyXLsa 13th Jan 2019 18:08


Originally Posted by midnight cruiser (Post 10347965)

The sensible approach must be somewhere between (albeit closer to the former option imo) ..

Agreed... I came across this flight while looking at recent EIO diversions. Looks like the same flight different date?
Geneva to Brussels (287nm) is a bit further than Shiraz to KWI (243nm) would have been.

Incident: Brussels A332 near Geneva on Nov 5th 2018, engine shut down in flight

A Brussels Airlines Airbus A330-200, registration OO-SFZ performing flight SN-359 (dep Nov 4th) from Kinshasa N'djili (DR Congo) to Brussels (Belgium), was enroute at FL400 about 20nm east of Geneva (Switzerland) within French Airspace when the left hand engine (PW4168) emitted a loud bang, the crew received an "ENG1 STALL" warning. The crew shut the engine down, drifted down to FL280 and continued to Brussels for a safe landing about 55 minutes later.

Incident: Brussels A332 near Geneva on Nov 5th 2018, engine shut down in flight

Sailvi767 13th Jan 2019 22:33

You can get a A330-200 on the ground in 20 to 25 minutes from cruise. There were numerous airports that were suitable in that time frame. The reality is they flew an extra 30 to 35 minutes. Wise or not we are talking about remaining airborne a lot longer than a few extra minutes.

ironbutt57 13th Jan 2019 23:53

guess the whole discussion is about nearest "in point of time" or as they used to say anyway....

FlyXLsa 14th Jan 2019 00:47


Originally Posted by Sailvi767 (Post 10359861)
You can get a A330-200 on the ground in 20 to 25 minutes from cruise. There were numerous airports that were suitable in that time frame. The reality is they flew an extra 30 to 35 minutes. Wise or not we are talking about remaining airborne a lot longer than a few extra minutes.

Then you probably don't want to hear about the "Emirates B773 near Iqaluit on 18 July 2018 (engine shut down in flight)" that flew single engine for TWO HOURS to land at Goose Bay?

Incident: Emirates B773 near Iqaluit on Jul 18th 2018, engine shut down in flight

A4 14th Jan 2019 10:31


....isn't the most conservative action to remain up there?
That would be amongst the least conservative in my book......:hmm:

A4

Sailvi767 14th Jan 2019 10:35


Originally Posted by FlyXLsa (Post 10359938)
Then you probably don't want to hear about the "Emirates B773 near Iqaluit on 18 July 2018 (engine shut down in flight)" that flew single engine for TWO HOURS to land at Goose Bay?

Incident: Emirates B773 near Iqaluit on Jul 18th 2018, engine shut down in flight

If that was the nearest suitable airport I have no issue with it.

FlyXLsa 14th Jan 2019 11:41


Originally Posted by Sailvi767 (Post 10360204)
If that was the nearest suitable airport I have no issue with it.

I understand they were about 10 minutes past Iqaluit.
A Swiss B773 landed at Iqaluit on Feb 1st 2017.

old,not bold 14th Jan 2019 16:08


that flew single engine for TWO HOURS to land at Goose Bay?
I wouldn't get too excited about that; there are now, or very soon will be, ETOPS flights which allow up to 7 hours to reach a diversion after losing one engine. (I admit that I'm assuming that Airbus managed this for the A350, I haven't bothered to keep up. And 330 minutes sounds just as bad, to me.)

Not with me on board; but if you have faith in statistics you can enjoy the 420 minutes struggling along on one engine over the chilly ocean. Sorry; for "struggling" read "cruising happily", that was just a lapse by this old dinosaur. What we ODs just cannot grasp is that so long as you maintain your ETOPS aircraft a little bit better, a double-engine failure in a twin is, well, just impossible. Isn't it?

Sailvi767 14th Jan 2019 18:09


Originally Posted by FlyXLsa (Post 10360256)
I understand they were about 10 minutes past Iqaluit.
A Swiss B773 landed at Iqaluit on Feb 1st 2017.

If it was suitable they should have landed there. Suitable includes many aspects however with the weather being the most changeable.

ironbutt57 14th Jan 2019 20:49

the whole point is these folks in the 330, apparently did not for whatever reason, land at the nearest suitable airport, the other flights mentioned above have nothing to do with this, as it it is quite possible their nearest suitable airport/designated ETOPS alternate may have been further away..

Sailvi767 14th Jan 2019 23:06

Just to clear one thing up. ETOPS alternates are for flight planning purposes only. Once airborne the nearest suitable airport may or may not be the ETOPS alternate. You are still required to go to the nearest suitable regardless of what your ETOPS alternate was. There is a judgement component however. Weather and other factors could mean flying to a airport further away if conditions dictate.

edmundronald 15th Jan 2019 02:25


Originally Posted by old,not bold (Post 10360498)

Not with me on board; but if you have faith in statistics you can enjoy the 420 minutes struggling along on one engine over the chilly ocean. Sorry; for "struggling" read "cruising happily", that was just a lapse by this old dinosaur. What we ODs just cannot grasp is that so long as you maintain your ETOPS aircraft a little bit better, a double-engine failure in a twin is, well, just impossible. Isn't it?

It's not faith in statistics, it's faith in economics - the failure rate has been reduced to the point where it's cheaper to pay off the hull loss and the relatives of the souls rather than improve the hardware. And let's face it, anyone except US citizens have a low compensation cost.

Also the calculation behind twin-engine ETOPS leverages the fact that once an occasional 2-engine airframe loss is computed into the fleet ownership costs, what increases is insurance overhead, but eg. a 3 engine would probably have higher maintenance overhead due to the greater number of individual engine units to maintain.

But that way when you're in seat 0A and lose a donk over the blue, you get to show the right stuff and smile.

As an SLF and an engineer, I always liked 747s :)

Edmund

hans brinker 15th Jan 2019 03:15

So how many planes have crashed due to a lack of engines that worked?

And I am just talking "big" aircraft here, if you look from the B707&DC8 era all the way to A330, A321LR, B737max, B777 aso, how many hull losses would have been prevented, if only they had a few more engines?

CurtainTwitcher 15th Jan 2019 07:02

Clip from the movie Fight Club.



"On a long enough time line, the survival rate for everyone drops to zero.

"I was a recall coordinator. My job was to apply the formula. ... A new car built by my company leaves somewhere travelling at mph. The rear differential locks up. ... The car crashes and burns with everyone trapped inside. Now, should we initiate a recall? ... Take the number of vehicles in the field, A. Multiply it by the probable rate of failure, B. Multiply the result by the average out-of-court settlement, C. A x B x C equals X. If X is less than the cost of a recall, we don't do one."

FlyXLsa 15th Jan 2019 14:23


Originally Posted by hans brinker (Post 10360898)
So how many planes have crashed due to a lack of engines that worked?
And I am just talking "big" aircraft here, if you look from the B707&DC8 era all the way to A330, A321LR, B737max, B777 aso, how many hull losses would have been prevented, if only they had a few more engines?

For solely mechanical issues and excluding events like US1549 I think none... yet. With the issues RR has had with their Trent 1000 on the 787 and PW issues with their GTF on the 320neo the theoretically "statistically insignificant" odds must have increased a bit?

InfrequentFlier511 17th Jan 2019 02:20


Originally Posted by hans brinker (Post 10360898)
...how many hull losses would have been prevented, if only they had a few more engines?

You would probably have to count US1549, even though the cause was environmental there would have been a remote chance that an additional engine might have retained sufficient thrust to get the aircraft to a suitable (there's that word again) field. Against that, how many hull losses have resulted from a single catastrophic failure of or around an engine? UA232, LY1862,QF32 (almost) for a start. Having more engines that could save you also means having more engines that could kill you.

ironbutt57 17th Jan 2019 12:47

my bigger concern over the middle of the water somewhere at night, would be a blazing cargo fire...

Sailvi767 17th Jan 2019 14:29


Originally Posted by ironbutt57 (Post 10363119)
my bigger concern over the middle of the water somewhere at night, would be a blazing cargo fire...

Ditching would be your only option however ditching over the North Atlantic is a death sentence even if you get out of the aircraft unless there is a ship nearby.

lomapaseo 17th Jan 2019 16:03

You would probably have to count US1549, even though the cause was environmental there would have been a remote chance that an additional engine might have retained sufficient thrust to get the aircraft to a suitable (there's that word again) field. Against that, how many hull losses have resulted from a single catastrophic failure of or around an engine? UA232, LY1862,QF32 (almost) for a start. Having more engines that could save you

No idea why threads degenerate into number of engines after an event

Nobody adds engines purely for redundancy. They are added for performance reasons.

Given that the number of engines is performance based, that the more engines the more failure combinations per flight and once you start adding the loss of more than a single engine you're going to be performance limited far more often te US1549 event.and in the news more often.

If you just feel more comfortable with more engines than maybe they ought to add a syllabus to training to certify a pilots ability to handle multiple engine outs in takeoff bird ingestions etc.

infrequentflyer789 17th Jan 2019 18:35


Originally Posted by InfrequentFlier511 (Post 10362743)
You would probably have to count US1549, even though the cause was environmental there would have been a remote chance that an additional engine might have retained sufficient thrust to get the aircraft to a suitable (there's that word again) field.

Also BA38, although it was fuel icing it was very transient and difficult to reproduce, on a four-holer (or three) the difference in temperature exposure of tanks and pipes etc. between inboard and outboard might have been enough that at least two of the engines would have spooled up when they asked for power, and that is probably all they needed.

tdracer 18th Jan 2019 01:56

If you loose two engines during takeoff, on anything short of a B-52 you're probably going to have a really bad day - the extra engine(s) just mean you have slightly more control over where you're going to crash.
https://en.wikipedia.org/wiki/1995_A...entry_accident

22 September 1995 crash of a United States Air Force Boeing E-3 Sentry airborne early warning aircraft with the loss of all 24 people on board.[1] The aircraft, serial number 77-0354 with callsign Yukla 27, hit birds on departure from Elmendorf Air Force Base in Alaska, United States. With the loss of thrust from both of the left engines the aircraft crashed into a wooded area less than a mile from the end of the runway.
If having more than two engines made the aircraft inherently safer, you'd expect to see that in the fatal hull loss statistics. Yet the 747-400 rate is more than twice what it is for the 757, 767, 777, or A330 (and you don't even want to ask about the MD-11).

FlyXLsa 18th Jan 2019 06:57


Originally Posted by tdracer (Post 10363666)
If you loose two engines during takeoff, on anything short of a B-52 you're probably going to have a really bad day - the extra engine(s) just mean you have slightly more control over where you're going to crash.
https://en.wikipedia.org/wiki/1995_A...entry_accident


If having more than two engines made the aircraft inherently safer, you'd expect to see that in the fatal hull loss statistics. Yet the 747-400 rate is more than twice what it is for the 757, 767, 777, or A330 (and you don't even want to ask about the MD-11).

I'll take the Lockheed L-1011 when it comes to jets with more that two engines.
I always liked that plane for a variety of reasons and safety wasn't bad either.

hans brinker 18th Jan 2019 18:09


Originally Posted by tdracer (Post 10363666)
If you loose two engines during takeoff, on anything short of a B-52 you're probably going to have a really bad day - the extra engine(s) just mean you have slightly more control over where you're going to crash.
https://en.wikipedia.org/wiki/1995_A...entry_accident


If having more than two engines made the aircraft inherently safer, you'd expect to see that in the fatal hull loss statistics. Yet the 747-400 rate is more than twice what it is for the 757, 767, 777, or A330 (and you don't even want to ask about the MD-11).

Upvote. .


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