FAA Grounds 787s
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Hi CGB,
The document referred to is here:
http://www.gpo.gov/fdsys/pkg/FR-2007...df/E7-8186.pdf
See the "Proposed Special Conditions" on page 2.
Where Boeing/FAA screwed up is explanied in a few recent releases. The following artical by Flightglobal explains it quite well.
NTSB hearing on 787 batteries reveals Boeing shift on testing
Basically the LI battery installation was supposed to preclude any explosion, release of harmful gases etc but the testing performed did not represent real failure modes and hence the battery installation system was not designed for real failures. Note: The "battery installation" includes the containment structure.
Disclaimer. I am not an expert in the 787 battery system. I am only going by public documents and official releases. Im happy to be corrected by further documents but armchair experts with generalised criticisms will be ignored.
The document referred to is here:
http://www.gpo.gov/fdsys/pkg/FR-2007...df/E7-8186.pdf
See the "Proposed Special Conditions" on page 2.
Where Boeing/FAA screwed up is explanied in a few recent releases. The following artical by Flightglobal explains it quite well.
NTSB hearing on 787 batteries reveals Boeing shift on testing
Basically the LI battery installation was supposed to preclude any explosion, release of harmful gases etc but the testing performed did not represent real failure modes and hence the battery installation system was not designed for real failures. Note: The "battery installation" includes the containment structure.
Disclaimer. I am not an expert in the 787 battery system. I am only going by public documents and official releases. Im happy to be corrected by further documents but armchair experts with generalised criticisms will be ignored.
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Thanks Danny Boy
I just read the PDF AD. It's logical and makes total sense to me. Hopefully the cost(s) to effect this AD will be borne by Boeing. (Or perhaps jointly with the battery manufacturer).
I just read the PDF AD. It's logical and makes total sense to me. Hopefully the cost(s) to effect this AD will be borne by Boeing. (Or perhaps jointly with the battery manufacturer).
It is for now a fairly advanced plane that will one day be consigned to history like the former "stars" 727 and DC-9.
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Aviation Herald mentions that an Ethiopian Airlines 787 flew for the first time yesterday after the worldwide grounding earlier in the year. Can anyone confirm?
Accident: ANA B788 near Takamatsu on Jan 16th 2013, battery problem and burning smell on board
Accident: ANA B788 near Takamatsu on Jan 16th 2013, battery problem and burning smell on board
Last edited by training wheels; 29th Apr 2013 at 07:48. Reason: typo
Per Ardua ad Astraeus
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How much confirmation do you seek? BBC News - Boeing 787 Dreamliner returns to service in Ethiopia flight
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How much confirmation do you seek? BBC News - Boeing 787 Dreamliner returns to service in Ethiopia flight
... Great to see it's back in the air again 
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ANA will do 200 flights with cargo only, and have temp monitors in the battery case that report on-board and to the ground.
Do they have attorneys in Ethiopia?
Do they have attorneys in Ethiopia?
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Hopefully the cost(s) to effect this AD will be borne by Boeing. (Or perhaps jointly with the battery manufacturer).
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Be sure to stay away from the Airbus A350 as well, lasernigel, since it also uses CFRP for it's fuselage.
You might also want to stay away from the Airbus A380, since it has more CFRP in it by weight than the 787 and A350. It also uses a fair bit of composite-laminate (GLARE) in the upper fuselage.
You might also want to stay away from the Airbus A380, since it has more CFRP in it by weight than the 787 and A350. It also uses a fair bit of composite-laminate (GLARE) in the upper fuselage.
Last edited by Kiskaloo; 29th Apr 2013 at 19:08.
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Be sure to stay away from the Airbus A350 as well, lasernigel, since it also uses CFRP for it's fuselage.
OLD RED DAMASK
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Be sure to stay away from the Airbus A350 as well, lasernigel, since it also uses CFRP for it's fuselage.
He probably should take the trains or the busses......much safer.
Last edited by lasernigel; 30th Apr 2013 at 06:17.
FWIW Qatar is resuming 787 flights, with a DXB - DOH flight tomorrow (Wed).
still won't fly on one, yet
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lasernigel
The engineers have a device called a Ramp Damage Checker. It is an ultrasound device, very simple to use, and will indicate to a line engineer whether or not specialist investigation is required.
How do you inspect carbon fiber for damage at an airport?
Last edited by Pub User; 30th Apr 2013 at 11:10.
OLD RED DAMASK
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The engineers have a device called a Ramp Damage Checker. It is an ultrasound device, very simple to use, and will indicate to a line engineer whether or not specialist investigation is required.