Two United Airlines planes clip wings while preparing to depart San Francisco International Airport, according to the FAA

Two United Airlines planes clip wings while preparing to depart San Francisco International Airport, according to the FAA

Two United Airlines planes clipped wings at San Francisco International Airport early Tuesday morning while preparing for take off, according to the Federal Aviation Administration.

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    Terrestrial Gamma-Ray Radiation

    Terrestrial gamma-ray radiation. No, it’s not the latest incarnation of Captain Kirk’s phaser, even though it does sound like it belongs in prime time on the syfy channel.

    If jets pass near lightning discharges or “terrestrial gamma-ray flashes” (TGF’s), aviation passengers can be exposed to radiation equivalent to 40 x rays. The exposure occurs when the plane is close to the lightning discharge’s origin. Scientists are recommending planes carry TGF meters to help them study the phenomenon. They believe TGFs are generated by electric fields above thunderstorms, although the mechanism is unknown, and the likelihood of exposure is low.

    Famous last words.

    Thank you scientists. More for airline travelers to worry about.

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    787 Dreamliner Has its Wings Back

    Remember when that Boeing 787 botched it’s test flight and caught on fire? The one with the power distribution panel that burned up, insulation and all? Well that plane flew out of Laredo today. The Dreamliner has its wings back.

    This is what Boeing had to say as of a week ago:

    EVERETT, Wash., Nov. 24, 2010 — Boeing is developing minor design changes to power distribution panels on the 787 and updates to the systems software that manages and protects power distribution on the airplane. These changes come as the result of what has been learned from the investigation of an onboard electrical fire on a test airplane, ZA002, earlier this month in Laredo, Texas.

    “We have successfully simulated key aspects of the onboard event in our laboratory and are moving forward with developing design fixes,” said Scott Fancher, vice president and general manager of the 787 program. “Boeing is developing a plan to enable a return to 787 flight test activities and will present it to the U.S. Federal Aviation Administration (FAA) as soon as it is complete.”

    Engineers have determined that the fault began as either a short circuit or an electrical arc in the P100 power distribution panel, most likely caused by the presence of foreign debris. The design changes will improve the protection within the panel. Software changes also will be implemented to further improve fault protection.
    The P100 panel is one of five major power distribution panels on the 787. It receives power from the left engine and distributes it to an array of systems.

    The 787 team is now assessing the time required to complete the design changes and software updates that are being developed. A revised 787 program schedule is expected to be finalized in the next few weeks.
    “Our team is focused on developing these changes and moving forward with the flight test program,” said Fancher. “The team in Laredo is also well along in preparing to return ZA002 to Seattle.”

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    Bomb Claim Initiates Review


    Click to view full size photo at Airliners.net
    Contact photographer Timo Jäger

    What: Interpol alerted 188 member states to look for disguised bombs after claim of responsibility in UPS Boeing 747-400 freighter en route from Dubai United Arab Emirates to Cologne Germany.
    Where: Dubai
    When: Sep 3 2010
    Who: 2 crew
    Why: The crew reported smoke and fire in the cockpit and was returning to Dubai International Airport, failed to land and crashed.

    See UPS Boeing Crashes in Dubai

    Evidence from examination of the scene and the black boxes does not point to an explosion, however the claim will be investigated, according to the General Civil Aviation Authority (GCAA). The “Orange Notice” issued by Interpol on Saturday will be published. The warning came days after several packages were intercepted shipped from Yemin in mid-September, possibly a test run for an Al-Qaeda attack.

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