• Beoing 787 incidents 1, 2, 3

    From ltlee1@ltlee1@hotmail.com (ltlee1) to soc.culture.china,alt.politics.usa on Thu Jun 12 13:29:23 2025
    From Newsgroup: soc.culture.china

    1.
    --------------------------------------------------------------
    United 787rCOs sudden altitude drop injures passengers and crew
    By Howard Hardee

    Several passengers and crew were injured when a United Airlines-operated
    Boeing 787-8 experienced rCLunexpected aircraft movementrCY on January 24, forcing the jet return to Lagos, Nigeria.

    The Washington, DC-bound widebody aircraft rCo operating as flight UA613 rCo suddenly dropped in altitude, according to accounts posted on social
    media.

    Shared images show the aircraftrCOs cabin strewn with refuse and overhead compartments splattered with what appears to be liquid from beverages.
    ..

    ------------------------------------------------------------

    2.
    ============================================================
    Passenger on Boeing flight that suddenly dropped says pilot told him he
    lost control after instrument failure
    Posted 2024-03-12T05:45:14+00:00 - Updated 2024-03-12T05:44:48+00:00

    (CNN) rCo The pilot of a terrifying flight from Australia to New Zealand
    told those on board he temporarily lost control of his Boeing 787 after
    one of its instruments failed, a passenger said Monday, as authorities investigate what caused a sudden drop that threw terrified travelers
    around the cabin, injuring dozens.
    ..

    ============================================================

    3.
    ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
    Air India Incident Marks First-Ever Boeing 787 loss: what we know so far
    12 June, 2025

    Josh Wood
    ..
    Initial video footage shows the aircraft struggling to gain altitude
    moments after departing runway 23 . A MAYDAY call was declared soon
    after, before the aircraft tragically came down in the Meghani Nagar residential area at around 13:43, just five minutes after departure. The aircraft reached an altitude of just 625ft, according to FlightRadar24
    data

    Eyewitnesses and video evidence appear to confirm that the landing gear remained extended throughout the brief flight, raising early speculation
    around a possible engine failure and subsequent hydraulic system loss.
    ..

    Airlineratings aviation safety expert Josh Wood states:

    "With the facts we have available now, there seems to be no other likely explanation than engine and hydraulic failure, based on the clear video footage. There is no visible explosion before impact, and we can
    discount weather factors such as ice. The aircraft had its gear
    seemingly deployed, which suggests they possibly could not be retractedrCopointing to a possible engine and subsequent hydraulic
    failure. The flaps also seem to be retracted which we would not expect
    at this stage of the climb. This in itself raises many questions, and of course, werCOll have a clearer picture as more information becomes
    available and the investigation progresses."

    Nagarjun Dwarakanth, a licenced commercial pilot and editor at India
    Today TV states:

    rCLThe combination of extended landing gear and retracted flaps at 600
    feet is highly irregular and points toward a possible cascading
    technical failure or a sequence of emergency actions by the crew in
    response to a malfunction. The final loss of altitude and apparent stall
    likely resulted from insufficient lift and excessive drag, leaving the
    crew unable to recover before impact.rCOrCY

    ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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  • From ltlee1@ltlee1@hotmail.com (ltlee1) to soc.culture.china,alt.politics.usa on Wed Jun 18 12:54:56 2025
    From Newsgroup: soc.culture.china

    From WSJ:

    --------------------------------------------------------------
    Exclusive | Boeing 787rCOs Emergency-Power System Likely Active Before Air India Crash
    Andrew Tangel, Shan Li
    June 18, 2025 2:57 am ET

    Investigators believe Air India Flight 171 had an emergency-power
    generator operating when it crashed last week, raising questions about
    whether the planerCOs engines functioned properly during takeoff.

    The preliminary finding, according to people familiar with the probe,
    gives investigators a new line of inquiry ...

    The emergency system is known as a ram air turbine. It is a small
    propeller that drops from the bottom of the 787 DreamlinerrCOs fuselage to serve as a backup generator.

    Engines normally produce electricity for an aircraft and help run its flight-control systems. The power generated by the RAT can enable
    crucial aircraft components to function.

    The system can deploy automatically in flight if both engines have
    failed or if all three hydraulic system pressures are low, according to
    an airlinerCOs Boeing 787 manual reviewed by The Wall Street Journal. It
    can also deploy if cockpit instruments lose power or problems emerge
    with the aircraftrCOs electric motor pumps.

    Pilots can manually deploy the RAT if needed. ...

    --------------------------------------------------------------
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  • From bmoore@bmoore@nyx.net (bmoore) to soc.culture.china,alt.politics.usa on Fri Jun 20 14:54:22 2025
    From Newsgroup: soc.culture.china

    In article <a7394e7a0af664b1aefde62102e0cc43@www.novabbs.com>,
    ltlee1 <ltlee1@hotmail.com> wrote:
    From WSJ:

    --------------------------------------------------------------
    Exclusive | Boeing 787rCOs Emergency-Power System Likely Active Before Air >India Crash
    Andrew Tangel, Shan Li
    June 18, 2025 2:57 am ET

    Investigators believe Air India Flight 171 had an emergency-power
    generator operating when it crashed last week, raising questions about >whether the planerCOs engines functioned properly during takeoff.

    The preliminary finding, according to people familiar with the probe,
    gives investigators a new line of inquiry ...

    The emergency system is known as a ram air turbine. It is a small
    propeller that drops from the bottom of the 787 DreamlinerrCOs fuselage to >serve as a backup generator.

    Engines normally produce electricity for an aircraft and help run its >flight-control systems. The power generated by the RAT can enable
    crucial aircraft components to function.

    The system can deploy automatically in flight if both engines have
    failed or if all three hydraulic system pressures are low, according to
    an airlinerCOs Boeing 787 manual reviewed by The Wall Street Journal. It
    can also deploy if cockpit instruments lose power or problems emerge
    with the aircraftrCOs electric motor pumps.

    Pilots can manually deploy the RAT if needed. ...

    --------------------------------------------------------------

    So currently, very hard to say whether this was a problem caused by the manufacturer (Boeing) or the customer (Air India), or a combination of both..

    Or just really bad luck.
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