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The FAA has reiterated that it won't allow the 787 to return to commercial service until it's...

The FAA has reiterated that it won't allow the 787 to return to commercial service until it's "confident that any proposed solution has addressed the battery failure risks," although the agency will allow Boeing (BA) to conduct test flights to assess how well its changes work. The FAA's comments came after it met with Boeing on Friday. A major problem is that the root cause of the two battery failures is still unknown.
Comments (2)
  • thomas85225
    , contributor
    Comments (563) | Send Message
     
    Is Boeing going in reverse ?
    The US Federal Aviation Administration voiced its concerns about the use of lithium ion batteries in an April 2007 proposed special condition.
    At the time, the FAA said that the 787-8 would have "novel or unusual design features" and required, "additional safety standards that the [FAA] administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards".
    The US Federal Aviation Administration voiced its concerns about the use of lithium ion batteries in an April 2007 proposed special condition.
    The FAA cited three specific safety concerns about lithium ion batteries, which included overcharging, over-discharging and the potential flammability of cell components.
    http://bit.ly/XIE7CV
    http://1.usa.gov/XUyy2a
    It’s now 2013 and Boeing is still trying to Band- fix the battery or a do a work around!
    Airbus, Cessna Citation CJ4 last year has remove Ion-battery form the aircrafts no other Boeing use Ion-battery
    Boeing has yet to meet the FAA April 2007 proposed special condition
    Boeing remains tight-lipped about its proposed fix, but according to multiple sources, it includes:
    • A stronger, sealed containment box enclosing the eight battery cells
    • A system of venting tubes that in case of an incident would channel any flammable vapors or liquids directly out of the airplane
    • Continuous monitoring of temperature and voltage of individual cells within the battery
    • Better thermal separation of the cells, with some barrier such as high-temperature glass inserted between them
    How did this Ion-Battery lab rat get out of its cage?
    Placing the Ion battery in stronger, sealed containment box, with vented and a sensor, thermal separation of the cells is about the same as using 3M 600 mph duct tape
    Where is all the Boeing testing from the 18 to 24 months flight test programs
    System Integration Laboratory in Seattle was required to do in 2007!
    Boeing is try to resale Boeing remains tight-lipped about its proposed fix, but according to multiple sources, it includes:
    • A stronger, sealed containment box enclosing the eight battery cells
    • A system of venting tubes that in case of an incident would channel any flammable vapors or liquids directly out of the airplane
    • Continuous monitoring of temperature and voltage of individual cells within the battery
    • Better thermal separation of the cells, with some barrier such as high-temperature glass inserted between them
    Boeing and the FAA has knew about the Lithium-ion battery since 2007
    Its wasn't enough to prevent a lithium-ion battery from lighting off in a Cessna Citation CJ4 last year
    Cessna quickly withdrew the batteries from the Citations and the FAA issued an emergency AD. Cessna says it's still committed to Li-ion, but declines to offer details.
    http://bit.ly/VHrg2w
    DEPARTMENT OF TRANSPORTATION, Federal Aviation Administration, 14 CFR Part 25
    [Docket No. NM375 Special Conditions No. 25-07-10-SC]
    http://bit.ly/VKZqoj
    http://bit.ly/VHrg2w
    What inside a Lithium-ion battery?
    http://bit.ly/V3LwMm

     

    There is NO Fire Extinguisher that can put out a Lithium-ion batteries fire!
    24 Feb 2013, 11:06 AM Reply Like
  • thomas85225
    , contributor
    Comments (563) | Send Message
     
    Boeing and the FAA need go to the Boeing System Integration Laboratory in Seattle there should be a functional test mockup of the 787 electrical systems inside the LAB for the 787 alone with a flight control Iron Bird and Electric Iron Bird for testing all the loadable Software LRS’s for each airlines

     

    Boeing and the FAA need configuring the System Integration Laboratory SAL for ANA airline and JAL airline by down loading the Flight Data Recorders from ANA and JAL into System Integration Laboratory and repeating the flights of ANA and JAL to determine where the battery got fire during the flight to find the root cause of the electrical 787 problems

     

    Also Boeing and the FAA need perform testing of the electrical system by placing electric OVER LOAD into system of each one of the components, of the six genitor, APU, R.A.T and two Batteries and the four LRS’s to repeat the failure in the LAB to try to discover the cause of problems

     

    This test should explain why Electrical Circuit Breakers did not trip that should have prevent the system from overloading of the electrical systems from the overload of the battery charging systems alone with aircraft on board monitoring systems

     

    Boeing should have been running the SAL for the 787 electrical system since 2003 for all the 787 airlines configurations
    The same Investigations processing and testing is use by NTSB and FAA to determine what cause an aircraft to crash
    http://bit.ly/YeeqOL
    The All Electric Boeing 787
    http://bit.ly/YeeqOJ
    ----------------
    LRU’s like the battery are required to be in a explore proof case all the photo of the 787 battery show a sheet metal box, .063 thick
    Everything (expect the fuel) must meet the FAA Flammability Explosive requirements for aircraft
    The 787 LRU’s are liquid cool, where are the coolant lines at for the battery box?
    other aircraft uses air tube that are a part of LRU mounting try for air cooling of the LRU’s
    Photo’s of the battery box does not show the dual set of fire detection coil for fire detection systems?
    Or the drain tube or vent tube for the battery box
    24 Feb 2013, 11:28 AM Reply Like
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