mh148 engine fire out of YMML
"Wonder if they fired the bottle"
Ahhhhh yes, most definalty in compliance with the ECAM they would have fired it....
Why wouldn't they?
Ahhhhh yes, most definalty in compliance with the ECAM they would have fired it....
Why wouldn't they?
Because it's kind of permanent and choosing an easier way like retarding the throttle in the case of a leaking hot air duct might be the better solution. You can always fire a bottle later in the sequence as needed.
If the checklist required the bottle to be fired, the the bottle NEEDED to be fired. Messrs Boeing, Airbus et al spend a lot of time and money with some very clever scientists and test pilots certifying their aircraft and checklists.
It would be rather silly to try to second guess all their work, and do your own thing.
Could also be catastrophic if there was a REAL fire.
That's probably why!
It would be rather silly to try to second guess all their work, and do your own thing.
Could also be catastrophic if there was a REAL fire.
That's probably why!
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Meggitt PLC - FIRE PROTECTION AND CONTROL
No mention of Airbus on above pdf?
Seems Graviner must have the patents well sewn up forcing others to determine a different route...
No mention of Airbus on above pdf?
Seems Graviner must have the patents well sewn up forcing others to determine a different route...
Last edited by glad rag; 14th Jun 2015 at 12:12. Reason: not relevent today
Lomapaso:----mate do you fly an A or B? We get an Engine Fire warning we follow the emergency ECAM/EICAS checklist and if it says FIRE the BOTTLE we FIRE the BOTTLE.
Air leakage detection loops detect any ambient temperature overheat in the vicinity of the hot air ducts in the fuselage, pylons and wings and are not the same as the Engine Fire loops. Different ECAM/EICAS checklist.
Oh, and as far as I'm aware you can push the Engine Fire switch back in and it resets, even if you've fired a bottle you could still run the Engine.....( assuming it wasn't stuffed and you wish to disregard the warning in the FCOM not to attempt to restart the Engine )
Air leakage detection loops detect any ambient temperature overheat in the vicinity of the hot air ducts in the fuselage, pylons and wings and are not the same as the Engine Fire loops. Different ECAM/EICAS checklist.
Oh, and as far as I'm aware you can push the Engine Fire switch back in and it resets, even if you've fired a bottle you could still run the Engine.....( assuming it wasn't stuffed and you wish to disregard the warning in the FCOM not to attempt to restart the Engine )
Last edited by ACMS; 14th Jun 2015 at 14:01.
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overheat and fire detections
@ACMS:
On Boeing from 737 up to 787, overheat detection and fire detection are using same detector.
Only temperature triggers either OVERHEAT ENG or FIRE ENG alarm.
And never seen a procedure allowing to push back fire engine switch.. even if technically possible.
On Boeing from 737 up to 787, overheat detection and fire detection are using same detector.
Only temperature triggers either OVERHEAT ENG or FIRE ENG alarm.
And never seen a procedure allowing to push back fire engine switch.. even if technically possible.
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There is no argument about fire bottle firing. You do it and argue about it on the ground. If there is anybody here who disagrees with that then please explain how, if you survived, you would answer the barrister's question. Why, Captain Bloggs did you decide not to comply with the manufacturer's and your company's checklist during the incident?
From an old FE who put 2 bottles into number 2 for a false warning into Saigon.
From an old FE who put 2 bottles into number 2 for a false warning into Saigon.
VNAV:- yes I remember the overheat detection on the B. A doesn't have that anyway.
Either way on a A or B if you get a Fire warning you do the checklist.
I'm pretty sure the Fire Switch action is reversible, now as to weather the fire bottle discharge around the inside of the cowling area ( not inside the core ) physically prevents the Engine lighting off? I doubt it would stop it.
I'm NOT saying any proceedure calls for it to be reset or that you would normally want to do it. I was only replying to the comment above that "it's kind of permanent"
Either way on a A or B if you get a Fire warning you do the checklist.
I'm pretty sure the Fire Switch action is reversible, now as to weather the fire bottle discharge around the inside of the cowling area ( not inside the core ) physically prevents the Engine lighting off? I doubt it would stop it.
I'm NOT saying any proceedure calls for it to be reset or that you would normally want to do it. I was only replying to the comment above that "it's kind of permanent"
Last edited by ACMS; 15th Jun 2015 at 09:24.
