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Father Dick Byrne 23rd Jun 2018 21:05


Originally Posted by suninmyeyes (Post 10180191)
I do not know if Father Dick Byrne is a troll or whether he just has a very poor grasp of flight deck procedures, air traffic procedures and what actually happened on that day...

You have no idea how far wrong you are, in those words and the rest of your post.

Because this has gone from professional to personal, I’ll take no further part.

tdracer 23rd Jun 2018 22:55


Originally Posted by Banana4321 (Post 10180221)
I would have thought that it is both possible and useful for a single "EVAC" button to perform the required cutoffs and fire extinguishers and therefore eliminate the need for (most of) the Evacuation Checklist (or a significant part thereof). We live in an age of technology. Non?

Are you seriously advocating a single button that would shutdown all the engines? You don't see a problem with that?

Capn Bloggs 24th Jun 2018 00:35


Originally Posted by AVR4000
It is almost painful to hear the lack of fire communication from ATC in this case, it is like crew were "expected" to figure everything out on their own. It is pretty clear that ATC saw what's happened since they started to issue go-around commands and closed the runway but not a single word about the fire being serious.

I agree. I'm sitting there trying to work out what is going on. What do you guys want, everybody to be polite and stay quiet until I ask? The aeroplane's majorly on fire, FFS ATC should keep calling me until I respond! "BA, there's a large fire underneath your centre fuselage!". "Tell ATC to be quiet, I'm busy", while I continue to "Diagnose?". I don't think so.


Originally Posted by tdracer
Are you seriously advocating a single button that would shutdown all the engines? You don't see a problem with that?

Put it on a squat switch. What could possibly go wrong? :{


Originally Posted by NTSB
The relief pilot told a cabin crewmember to get ready to evacuate and, after returning to the flight deck, stated (at 1615:50), "doesn't look good to me." Also at that time, the CVR recorded a sound similar to the interphone (a call from the cabin to the flight deck), which was not answered.

Methinks that should be 1613:50.

Video again, for a refresh...

RatherBeFlying 24th Jun 2018 04:57

The flight crew seems to be the last to know there's a raging fire
 
The cabin crew and passengers were very much aware, but it took a long time for the flight crew to receive the information.

The announcement "Remain seated" while a fire is obviously increasing by leaps and bounds only communicates that the flight crew is unaware of the fire. Had they been aware, the announcement would have been "Evacuate".

pax britanica 24th Jun 2018 08:30

Isnt it about time that airliners were fitted with video cams that focussed on key areas of the aircraft . Aviation seems to prefer indicators over reality as this technology ha been around for a few years, I know that anything fitted to an airliner cost 20 times as muchas the same thing fitted toa car and understand why but in the circumstances and many others where there is airframe damage out of sight from the flight deck is it too much to spend ratehr than relying on EGT indications and fire 'sensors'

if you spent $!00m plus ona building you would surely have some cctv in there but not it seems on a plane.

As to this incident , from a pax POV then I think the crew did pretty well, they functioned as a crew for a start despite the captain fast tracking a checklist item and as has been often said its all very well having procedures and following them but when the sh-t really hits the fan right in front of you then you may decide to act ina slightly different but still logical way and the key thing is the aircraft stopped quickly and safely , fuel was contained-not ideally but contained and the everyone got out quickly and safely. It struck me in the Sully film how much time the feds spent trying to prove that eh could have landed , well maybe he could if he had headed for Teterboro the same second the first goose struck -ignoring shut down and restart processes of course and . A lot of Monday morning quarterbacking on these issues -whats next VAR for the flight deck LoL

mickjoebill 24th Jun 2018 10:21

At the pull and twist of a handle, the worlds most tested computers can’t be trusted to “make safe” an aircraft for evacuation, once it’s come to a stop?

mjb

AVR4000 24th Jun 2018 11:27

The lack of ATC information can be summarized using a couple of screenshots from the airport security camera and should make it pretty evident why they should have updated the crew.

https://cimg2.ibsrv.net/gimg/www.gmf...55bc5a8b0e.png

This is the point of engine failure and the beginning of the event.

https://cimg0.ibsrv.net/gimg/www.gmf...661534f72c.png

The fuel ignites a few seconds later, take-off is now aborted and the aircraft starts to slow down.

https://cimg2.ibsrv.net/gimg/www.gmf...d0736ecba1.png
The fire is now more intense and things start to get serious. No ATC calls has been made yet since it is just a few seconds after the initial event.

https://cimg6.ibsrv.net/gimg/www.gmf...04efaeb73c.png

This is the situation when the crew transmit "Speedbird 2276, stopping". This is the first time where an ATC reply would be expected AND to those who make the argument about "ATC shouldn't disturb the crew" - this is when the latter *is* contacting them reporting that they abort take-off. The situation is pretty evidently bad AND the lack of any more comment from the pilot such as "Speedbird 2276, stopping... (pause) we have an engine fire" is a clear indication that they are unaware of the serious fire.

ATC should have replied "there's a lot of smoke and visible flames on the left side of your aircraft" at this time and it is pretty evident just by looking at the picture.

https://cimg8.ibsrv.net/gimg/www.gmf...11a2db6652.png
This is the situation when the crew transmit "Speedbird 2276, mayday, mayday, request fire services". This is the second occasion when ATC should have told them that they have a serious fire on their left side and a lot of smoke.

https://cimg2.ibsrv.net/gimg/www.gmf...5c3177cbd6.png
This picture is from the point in time when ATC reply "fire services on their way" and that they didn't add any information about the fire and smoke is pretty baffling indeed.

An appropriate ATC exchange between Speedbird 2276 and themselves would have been something along the lines:

BA2276: "Speedbird 2276, stopping."
ATC: "Roger, Speedbird 2276, there's smoke and flames on the left side of your aircraft."
BA2276: "OK, standby" (from Speedbird 2276)
BA2276: "Speedbird 2276, mayday, mayday, request fire services!"
ATC: "Fire services are on their way, there's still a lot of smoke and fire on your left side."

The other version would be:

BA2276: "Speedbird 2276, stopping."
BA 2276: "Speedbird 2276, mayday, mayday, request fire services!"
ATC: "Roger, Speedbird 2276, fire services are on their way, there's a lot of smoke and flames on the left side of your aircraft, they are on their way now."
BA2276: "OK, standby"

We can compare it with the 1985 accident in Manchester and the ATC exchange. This image says it all:

https://cimg3.ibsrv.net/gimg/www.gmf...656667ab71.jpg
This is British Airtours flight 28M during their abandoned take-off and the picture was taken at approximately the same time as their information exchange with ATC:

KT28M: "28 Mike, we're abandoning take-off.... (pause, fire warning comes on) it looks as though we've got a fire on the number one."
ATC: "Right, there's a lot of fire, they are on their way now."

This information enabled the captain to tell the cabin "Evacuate on the right side please" and also placed him and his F/O in the appropriate mindset regarding shutting down the remaining engine and get going with evacuation immediately after stopping.

So yes, ATC should convey information to a burning aircraft when the crew contact them. Kindly notice this - "when the crew contact them". It is appropriate to report visible smoke and flames when the aborted take-off is reported (it means that the crew is in the "communicate" stage of aviate, navigate, communicate) so replying with information about the situation is appropriate.

I am pretty sure that the situation in Manchester would have been even worse than it became *if* ATC hadn't told the crew about the fire. It is probable that they would have stopped with the number 2 still running, trying to assess the situation before finally ordering evacuation (or that the cabin crew had initiated it before the engine had been shut down due to the rapidly deteriorating conditions in the cabin).

So a combination of improved possibilities for the crew to assess the situation (cameras) and relevant ATC information during the "communicate" stage is the best course of action.

AVR4000 24th Jun 2018 11:49


Originally Posted by mickjoebill (Post 10180614)
At the pull and twist of a handle, the worlds most tested computers can’t be trusted to “make safe” an aircraft for evacuation, once it’s come to a stop?

mjb

It doesn't work that way since such a system would have to perform a couple of things:

1. Set parking brake.
2. Shut down the remaining engine(s).
3. Close the fuel supply to the engines.
4. Operate the fire suppression system if needed (such as when fire warning is still on after the first shot have been fired into the engine).
5. Depressurize the cabin.

The next question is when this system should kick into action? Is it when an engine failure is detected (a failure would be defined as sudden rpm drop, loss of thrust, reduced burner pressure, overheating, fire indication etc)? It must be able to distinguish between an "engine failure" and a "catastrophic fuel-fed fire" since the need to evacuate arise in the latter case but not the former.

The question is how the system can determine a fuel leak and a fire caused by it unless a sophisticated set of sensors paired with a computer system can figure out that "X amount of fuel is flowing but the engine is shut down" or "the amount of fuel pumped out of the tank is higher than the amount of fuel received on the engine end". I.e. the fuel is flowing at a normal rate from the tank but the engine failure caused the line to separate so it is flowing out on the tarmac rather than into the right place.

An over-automated aircraft relying on artificial intelligence (i.e. the decision-making is now transferred to the machine itself and different systems operate in specific ways on different events) would be less safe since the automation would require very exact, reliable input from multiple sources in order to make appropriate decisions such as shutting down engines immediately when the speed hits 0 after an abandoned take-off.

Even a manual "evacuation switch" that shuts down the engines, close the fuel-supply, depressurizes the cabin and everything would require pretty complex co-operation across different systems without adding any particular benefit but rather increase risks if something doesn't work in the process.

The normal evacuation checklists are OK, the thing is to convey information to the crew so they can make a quick, informed decision whether an evacuation is necessary or not.

BAengineer 24th Jun 2018 14:35


Originally Posted by mickjoebill (Post 10180614)
At the pull and twist of a handle, the worlds most tested computers can’t be trusted to “make safe” an aircraft for evacuation, once it’s come to a stop?

mjb

Well the only real thing you have to make safe is to stop both engines - on the 777 that is a matter of flicking 2 switches. I dont see that adding yet another way of shutting down is really needed.

tdracer 24th Jun 2018 18:35


Originally Posted by mickjoebill (Post 10180614)
At the pull and twist of a handle, the worlds most tested computers can’t be trusted to “make safe” an aircraft for evacuation, once it’s come to a stop?

mjb

Any switch that has the capability to shut down both (or all) engines has a failure mode that will do exactly that when it shouldn't. As I wrote before, do you really thinks its a good idea to design in a failure mode that will cause the loss of all engines?
It would also violate a several FAR/CSs...
Heck, even with the action of two, independent switches required to shut down both engines, there have been at least two cases when the pilots shut down both engines in-flight when they meant to do something else...

back to Boeing 24th Jun 2018 20:14


Originally Posted by tdracer (Post 10180861)
Any switch that has the capability to shut down both (or all) engines has a failure mode that will do exactly that when it shouldn't. As I wrote before, do you really thinks its a good idea to design in a failure mode that will cause the loss of all engines?
It would also violate a several FAR/CSs...
Heck, even with the action of two, independent switches required to shut down both engines, there have been at least two cases when the pilots shut down both engines in-flight when they meant to do something else...

adding to that. One of the basic tenants of aviation safety is redundancy. Where is the redundancy in one switch killing off everything

Cloudtopper 25th Jun 2018 10:37

Where are the initial posters , back in 2015 , saying this was well handled .....

ROKNA 25th Jun 2018 19:36

The ATC tape clearly show both ATC and 777 getting stepped on while trying to each tell the other there was a problem

The tower was getting a Delta to go around having seen the smoke from the 777, the Delta really dragged out the RT

Plenty of youtube clips capture it

Yaw String 25th Jun 2018 21:00

Lots of discussion on whether the crew received information on the true nature of their dilemma.
I think one of the most difficult decisions can often be,"do we need to evacuate",however...once the decision has been made,it is a " read and do" procedure. I believe this to be the case in most airlines in the World.
The boss didn't "read and do"..
shouldn't this be the crux of the discussion!
Maybe he didn't have quick access to the Evacuation Checklist ...either electronic or paper...

wiggy 26th Jun 2018 01:38


Originally Posted by Yaw String (Post 10181725)
..once the decision has been made,it is a " read and do" procedure. I believe this to be the case in most airlines in the World.
The boss didn't "read and do"..
shouldn't this be the crux of the discussion!
Maybe he didn't have quick access to the Evacuation Checklist ...either electronic or paper...





FYI and for obvious reasons procedures have changed but as vaguely recall it at the time of the accident at BA the evacuation checklist was not a mandatory “read and do”, it was done from memory but it was available on the back cover of the QRH and on the yoke clip (though that version did not contain the warning about Fuel Control switch operation).

The Electronic Checklist occults once the Fire Switches are pulled so is not used for that checklist.

sudden twang 26th Jun 2018 09:34

Wiggy,
i think the read and do came in way before this event. The checklist was amended at some point to make the yoke checklist non SOP. I agree with everything else’s that you’ve said. 👍
And as for the CRUX of the matter surely it’s why the capt had to reject the take off in the first place. It was a latent system failure that made it necessary to initiate the evacuation
Whichever way you look at it everyone got off safely. Good maybe, good enough definitely.
Gone are the days when an evacuation was as easy as ABCDE. A aircraft stop B brakes set C cut off fuel to engines and APU D depressurise E evacuate.
Its likely that had the crew gone against SOPs and moved the fuel control switch to cut off during the deceleration then this event would have had a better outcome. However I very much doubt any airline would advise this for v g reasons.

wiggy 26th Jun 2018 11:48

Sudden Twang


i think the read and do came in way before this event. The checklist was amended at some point to make the yoke checklist non SOP.
Fair enough... for a long time it was supposedly a checklist done from memory and then if possible the actions checked using the paper QRH...I’ll admit I thought we formally transitioned to “read and do” very shortly after this accident, but that was umpteen iterations of QRH and IPad etc ago so if I haven’t got the timing of the change of procedure correct blame my fading memory.

Yaw String


Wiggy, I agree that the initial crux of the matter was why the event occured.
However,after the final report has been released,I think it is reasonable to be discussing how to,or not to,evacuate successfully.
?? TBH you lost me with that comment, I’m not aware I’m on record as saying we shouldn’t be discussing the evacuation....

sudden twang 26th Jun 2018 12:11


Originally Posted by Yaw String (Post 10182076)

Nobody was injured in the Singapore inferno,therefore a successful outcome,However,would you have reacted the way they did!

An interesting comparison. Whilst both crews were in the wrong place at the wrong time and the failures were not down to them, nothing the BA Flt crew did exacerbated the fire. The same cannot be said of the SIN crew. Both incidents resulted in all occupants surviving so again good enough.
Train in the Sim to be as perfect as possible then when there is real shock, surprise, Adrenalin etc humans won’t Perform as well but will hopefully be good enough to allow to all to survive.

42go 26th Jun 2018 20:09

To me, all this kerfuffle about whether ATC told the crew about the fire, how long it took to call an evac, etc etc, are ALL overshadowed by the fact that the Captain initiated the evac without doing the most important action - shutting down the running engine. It was lucky no-one got sucked into the motor. That should be the focus of any criticism here.

sewushr 26th Jun 2018 20:43

Am I the only one that thinks it odd that BA no longer insist on 'window blinds open' as part of their pre-departure and pre-landing safety announcement (unless they have re-instated it very recently).

It isn't mandatory to include this as part of the briefing, but it is considered by most Safety Regulators to be good practice, and most other airlines I've flown on recently still include it, and are quite insistent that all window blinds are fully open for take off and landing. As an airline that has had more than one incident involving a cabin evacuation with a fire outside the aircraft, I'd have thought it would be prudent to re-instate it.

Apologies if they have done so. I haven't flown with BA for quite a few months, but took several flights with them after the Las Vegas incident and was struck by the fact that it no longer formed part of the safety briefing.

wiggy 26th Jun 2018 20:48

Sewushr

There’s been a change since you flew - Blinds are required to be up, the cabin crew make an announcement to that effect pre takeoff and pre landing.


Originally Posted by 42go (Post 10182362)
To me, all this kerfuffle about whether ATC told the crew about the fire, how long it took to call an evac, etc etc, are ALL overshadowed by the fact that the Captain initiated the evac without doing the most important action -........That should be the focus of any criticism here.

I’d agree that’s tempting but I’m not sure you can do that in isolation...without wishing to sounds uncharacteristically “new age” about this you have to be a bit holistic about this and look at why the checklist wasn’t actioned correctly, not just focus “ criticism” on that fact. Yelling “yah boo, I’m criticising him/the entire Fleet/entire Airline because an evac checklist wasn’t done properly” doesn’t improve flight safety one iota.

There’s been a quite grown up debate about this accident elsewhere on Pprune..interesting observations there: possibly disruptive effect of the “heavy” (verses the sanitised two crew environment that is emulated in the sim), the checklist sequence, and the WTF /almost dislocation/disbelief factor individuals can experience when faced with a really serious emergency, something that is an emotion that you certainly will never get in the sim.

Not saying any of the above “excuses” the checklist being handled the way it was, but I can see why it happened and why similar will happen again. I’ve flown for over forty years, never had a perfect day at work, never flown with a perfect colleague.

tdracer 26th Jun 2018 21:41

Wiggy, trying not to be critical (and since you appear to be knowledgeable about such things), why isn't the evac check list a memory recall item? An evacuation is almost by definition an emergency, I'd think taking the time to look it up could be critical to the success (or lack there of).
Sure, it wouldn't prevent a startled crew from getting in wrong (although that's what sim training is for - to make it second nature), but the seconds it would save could well save lives.

svhar 26th Jun 2018 22:06


I’ve flown for over forty years, never had a perfect day at work, never flown with a perfect colleague.
I have flown for over thirty years. Most of my days at work were perfect and most of my colleagues were perfect. I would say well over 90%. Never had to evacuate though. Maybe our thresholds are different.

RatherBeFlying 26th Jun 2018 23:36

1. Assess Fire Status
 
This should be the first checklist item after a reject or landing with engine problems once the aircraft has come to a stop.

Assessing fire status should of course include checking with cabin crew eg. "Flight attendants report airframe condition"

double_barrel 27th Jun 2018 05:19

I am surprised that there is no comment on the evidence that the cabin crew were trying to contact the cockpit but were ignored as the flight crew focussed on apparently more urgent things. It seems to me that was an opportunity to learn something important that was lost. Perhaps it would help if the cabin crew had a means of indicating a fire with a simple button that would show an indicator somewhere on the instrumentation, that might be more easily integrated into the thinking process while the flight crew is trying to understand a situation.

Capn Bloggs 27th Jun 2018 05:30


Assess Fire Status...This should be the first checklist item after a reject or landing with engine problems once the aircraft has come to a stop.
Too much potential for dithering, to and fro, "what did he say?" "could you confirm that?" etc etc. Shut it down immediately, fire BOTH bottles, then ask questions.

wiggy 27th Jun 2018 05:50


Originally Posted by double_barrel (Post 10182582)
I am surprised that there is no comment on the evidence that the cabin crew were trying to contact the cockpit but were ignored as the flight crew focussed on apparently more urgent things..

As I read it (both the narrative and the CVR transcript) the cabin crew made one single attempt at interphone contact at about much the same time as there was a discussion going between the captain and the relief F/O about the gathering of information (;)..) The indication on the Flight deck of an incoming call would have been a short chime...”bing”....(and the first one of our sensory systems that degrades under highworkload/stress is.......) and a latched “ ....call” message on the EICAS, which given the circumstances would perhaps have been one of several messages displayed, some of a more eye catching nature than others ...I can only guess the...”...call” got missed with everything else that was going on....

framer 27th Jun 2018 10:07


the cabin crew were trying to contact the cockpit but were ignored as the flight crew focussed on apparently more urgent things.
I’d bet my bottom dollar the call wasn’t ‘ignored’ , just simply not processed as wiggy alluded to above.

Jwscud 27th Jun 2018 18:58


Originally Posted by tdracer (Post 10182419)
Wiggy, trying not to be critical (and since you appear to be knowledgeable about such things), why isn't the evac check list a memory recall item? An evacuation is almost by definition an emergency, I'd think taking the time to look it up could be critical to the success (or lack there of).
Sure, it wouldn't prevent a startled crew from getting in wrong (although that's what sim training is for - to make it second nature), but the seconds it would save could well save lives.

My understanding is it isn’t a Boeing memory item? On the 737 and 777 at 2 different airlines we now work to the Boeing checklist which is as posted up, solely with differences for types. BA used to have it on the yoke of the 777 with separate actions for Captain and FO, but the AAIB highlighted problems with that in the G-YMMM accident. They were then operating using Captain and FO actions from the back of the QRH, and finally after this accident they have gone for the Boeing version as above.

The decision to evacuate is a big one, and one advantage of using the QRH is it is considered and done correctly, rather than the rush that left an engine running in this case. Our training department’s view is that 5 seconds to get the QRH and start reading is preferable to launching passengers into a still turning and burning GE90.

I was trained elsewhere where that simply reading the condition statement on the Evacuation checklist gives you a chance to assess and confirm that you are making the correct decision (that airline had had some over-punchy initiations or needless evacuations).

JammedStab 27th Jun 2018 20:52

Guys......

According to the report, "While the airplane was decelerating to a stop, the fire warning bell sounded. When the airplane came to stop, the captain called for the engine fire checklist. The third item on the checklist was to move the fuel control switch on the affected side (in this case, the left side) to the cutoff position, which shuts down the respective engine."

Where I work, on this type, there are memory items for this situation which will quickly shut down the engine, cut off fuel and discharge fire bottles. Is it different at BA with only a checklist which can take significantly more seconds to perform?

back to Boeing 27th Jun 2018 22:56

It is called the fire engine checklist. Which is a full checklist. However the first couple of items are memory items. However to initiate the memory items the PF calls for the appropriate checklist. But that doesn't mean physically grabbing it to perform the memory items.

JammedStab 28th Jun 2018 03:11


Originally Posted by back to Boeing (Post 10183223)
It is called the fire engine checklist. Which is a full checklist. However the first couple of items are memory items. However to initiate the memory items the PF calls for the appropriate checklist. But that doesn't mean physically grabbing it to perform the memory items.

Just to be clear, for this situation at BA one does not call for Memory Items(and then the checklist once the Memory Items are said to be complete) but instead calls for the Engine Fire checklist at which point, the first two items are performed by memory(different to what I am used to).

Capn Bloggs 28th Jun 2018 03:27

Could someone please post the current 777 Engine Fire QRH procedure?

haughtney1 28th Jun 2018 04:19


Originally Posted by Capn Bloggs (Post 10183305)
Could someone please post the current 777 Engine Fire QRH procedure?


777 QRH

FIRE ENG L, R

Condition: Fire is detected in the engine

1 A/T ARM switch (affected side) . . . . . . Confirm. . . . . . . . . . OFF

2 Thrust lever (affected side) . . . . . . Confirm. . . . . . . . . . Idle

3 FUEL CONTROL switch (affected side) . . . . . . Confirm. . . . . . . CUTOFF

4 Engine fire switch (affected side) . . . . . . Confirm. . . . . . . . . . Pull

5 If the FIRE ENG message stays shown:

Engine fire switch (affected side) . . . . . . . . . . Rotate to the stop and hold for 1 second

If after 30 seconds, the FIRE ENG message stays shown:

Engine fire switch (affected side) . . . . . . . . . .Rotate to the other stop and hold for 1 second

6 APU selector (if APU available) . . . . . . . . . . . . START, then ON

7 Transponder mode selector . . . . . . . . . . TA ONLY

8 Plan to land at the nearest suitable airport.

 Continued on next page 

Etc etc etc.

Obviously, this checklist assumes amongst other things that the fire is occurring whilst in flight, but the basic tenant of the memory items for an engine fire on the ground are indentical e.g. items 1 through 5.

back to Boeing 28th Jun 2018 06:03


Originally Posted by JammedStab (Post 10183300)
Just to be clear, for this situation at BA one does not call for Memory Items(and then the checklist once the Memory Items are said to be complete) but instead calls for the Engine Fire checklist at which point, the first two items are performed by memory(different to what I am used to).

not sure how you do it. But having flown several different Boeing types for several different operators. The checklists are exactly the same done in exactly the same order. Just the mouth music is slightly different.

wiggy 28th Jun 2018 06:20

Blimey reading some of the above this is in danger of getting confusing..I began to wonder if I’d missed something whilst I’ve been on leave.

I don’t know what other Boeing operators do but if you want to know what the BA T7 procedure is IMHO it is the version haughtney1 has posted, and I agree with his/her comment that items 1 to 5 are done from memory.

Volume 28th Jun 2018 07:06

As you can see in bullet 8, this procedure is for an engine fire in flight. Hence it is not optimized for an engine fire on ground (when fuel can collect and burn close to the fuselage, while in flight it will only affect a part of the wing and the according trailing edge devices) and not optimized to prepare for an evacuation.
Normally there should be two procedures (air/ground). And there should be an engine fire procedure (fire warning while the engine performs normally) and an "catastrophic engine failure procedure" when a bunch of warnings go off at the sime time, the engine stops producing thrust and a loud bang supplements the cockpit indications. But that would of course increase the number of procedures to an unacceplable level...
Having a 30 second wait in the procedure makes it quite unsuitable for a situation like this, when prompt decisions about an evacuation have to be taken, and preparation takes time (spool down of the other engine).

For the concorde crash the engine fire procedure was also not the best one to perform with priority... Although formally there was an engine fire warning, so formally it was the right procedure. Hard to blame the crew.

haughtney1 28th Jun 2018 07:48

Just to add to what Volume is saying, the point is made by Boeing in the Checklist instructions..e.g. how to use the checklists.


Non–Normal Checklist Operation

Non–normal checklists start with steps to correct the situation. If needed, information for planning the rest of the flight is included. In the printed non-normal checklists, when special items are needed to configure the airplane for landing, the items are included in the Deferred Items section of the checklist. In the electronic checklists, deferred items are automatically added to the end of the applicable normal checklist. Flight patterns for some engine out situations are located in the Maneuvers chapter and show the sequence of configuration changes.

While every attempt is made to supply needed non–normal checklists, it is not possible to develop checklists for all conceivable situations. In some smoke, fire, or fumes situations, the flight crew may need to move between the Smoke, Fire or Fumes checklist and the Smoke or Fumes Removal checklist. In some multiple failure situations, the flight crew may need to combine the elements of more than one checklist. In all situations, the captain must assess the situation and use good judgment to determine the safest course of action.
So in summary, do what you need to do as even Boeing are happy to go into print to say that all things are not black or white.

M.Mouse 28th Jun 2018 08:42


As you can see in bullet 8, this procedure is for an engine fire in flight. Hence it is not optimized for an engine fire on ground (when fuel can collect and burn close to the fuselage, while in flight it will only affect a part of the wing and the according trailing edge devices) and not optimized to prepare for an evacuation. Normally there should be two procedures (air/ground).
So what would be different in an Engine Fire Checklist (Ground) and an Engine Fire Checklist (Air)? As far as I am aware Boeing do not differentiate.


And there should be an engine fire procedure (fire warning while the engine performs normally) and an "catastrophic engine failure procedure" when a bunch of warnings go off at the sime time, the engine stops producing thrust and a loud bang supplements the cockpit indications. But that would of course increase the number of procedures to an unacceplable(sic) level...
There is. It is called the 'Engine Severe Damage/Separation' checklist.

Essentially the initial actions are the same leading to the Fire Switch being pulled. In the Engine Severe Damage/Separation case the memory items stop at that point. i.e. the fire bottles do not get discharged.

It may have changed since I was with BA but I recall that on the ground the Engine Fire checklist is accomplished for Engine Severe Damage/Separation.

wiggy 28th Jun 2018 10:25

Open to correction as usual but the teaching now is to do the specific checklist appropriate to the specific malfunction.


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