US authority orders Boeing inspection

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  1. US authority orders Boeing inspection
    • From:AAP
    • April 15, 2013 12:22PM
    THE US Federal Aviation Agency plans to inspect more than a thousand Boeing 737 planes to check for corrosion on certain pins that could compromise safety, according to a notice on the Federal Register.
    In the document, dated April 15, the agency said it had been informed of an "incorrect procedure used to apply the wear and corrosion protective surface coating to attach pins of the horizontal stabiliser rear spar."
    The parts will need to be inspected and, in problem cases, replaced "to prevent premature failure of the attach pins, which could cause reduced structural integrity ... resulting in loss of control of the aeroplane."
    The notice did not mention any incident so far resulting from the faulty parts.
    It stated that the "airworthiness directive," issued in accordance with Boeing, will take effect on May 20 and "affects 1,050 aeroplanes of US registry."
    The 737, a single aisle jet is Boeing's most popular model, with more than 10,000 planes sold.
    An FAA spokesman told AFP the agency "occasionally" publishes such directives "that affect significant numbers of aircraft."
    Boeing was not immediately available for comment.
    The affected planes include the 600, 700, 700C, 800, 900, and 900ER models of the 737.
    The FAA estimates that the operation could cost as much as $US10 million ($A9.57 million) to US airlines, but a part of the cost could be covered by the manufacturers warranty.
     
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  2. Wandering Aramean
    Original Member

    Wandering Aramean Gold Member

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    Just over 4,000 total planes affected and they've got 3,000 cycles following the issuance of the AD to complete the inspection. Actually seems a bit of a non-event to me in many ways.
     
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  3. Airlines to inspect 120 newer Boeing 737s for faulty pins in tails
    AUSTRALIAN airlines will need to inspect 120 newer Boeing 737s for improperly manufactured pins that could lead to a loss of control of the aircraft.
    Australia will automatically adopt a US Federal Aviation Administration airworthiness directive issued yesterday and affecting about 1000 planes in the US.
    The directive requires airline to look for and, where necessary, replace corrosion-prone pins that attach the horizontal moveable panels in an aircraft's tail.
    It takes effect in late May and covers six models of newer 737s, including those used on the single-aisle workhorses by both major local airlines.
    The horizontal stabiliser causes the nose of the plane to pitch upwards or downwards and the FAA warned that an incorrectly applied coating designed to protect the attach pins from corrosion could lead to premature failure.
    It said this could cause "reduced structural integrity of the horizontal stabiliser to fuselage attachment, resulting in loss of control of the airplane''.
    The FAA recently also mandated fixes by Boeing designed to prevent a severe vibration that posed a threat of structural failure in the tails of 737s and earlier this year expanded inspections and fixes for improperly installed bolts used to attach horizontal stabilisers to the aircraft.
     

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