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SF34 propeller detached in flight

Discussion in 'Latest Airline Incidents' started by Exuma Guy, Mar 17, 2017.

  1. Exuma Guy

    Exuma Guy Hangar Silver Member V

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    Here's why I refuse to sit in the kill zone of the propeller. I don't even stand in the kill zone of props on RC planes. Danged lucky that prop went clear of the fuselage.
    +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
    http://avherald.com/h?article=4a651f6e&opt=0

    A REX Regional Express Saab 340B, registration VH-NRX performing flight ZL-768 from Albury,NS to Sydney,NS (Australia) with 16 passengers and 3 crew, was descending through about FL120 towards Sydney cleared to descend to 8000 feet when the crew declared PAN reported they just had had uncommanded engine operations, the right hand propeller had sheared off, they still were able to fly with normal handling of the aircraft. Air Traffic Control stopped departures and sent arriving traffic into holds advising a runway inspection was needed, only one runway would remain available and they couldn't estimate when the second runway would become available again due to the landing with one propeller sheared off. A second PAN aircraft (medical emergency), that had earlier been assigned to runway 16R, too, was reassigned runway 16L. The Saab continued for a safe landing on Sydney's runway 16R about 25 minutes later.

    Australia's TSB reported the occurrence was rated a serious incident. Three investigators with expertise in materials failure engineering have been dispatched on site. The ATSB urged: "The ATSB urges anyone who finds a piece of suspected aircraft debris NOT to handle it. Please call the local police or the ATSB on 1800 020 616."

    [​IMG]
     
  2. Lord Leighton

    Lord Leighton Hangar Gold Member I

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    :eek: Good thing it sped ahead instead of slicing, dicing, and Julienne frying the fuselage.
     
  3. Rotorruss

    Rotorruss Hangar Bronze Member II

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    One of the most forgotten slice and dice happened in a MU-2. Would have been a successful recovery, but the grain silo got in the way.
     
  4. Exuma Guy

    Exuma Guy Hangar Silver Member V

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    In the old days, when big recip engines would seize up suddenly, the propshaft would twist off. Very dangerous indeed.
    This happened to a friend-
    https://ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20001211X12020&key=1
    The severed blade barely missed a passenger and went through the floor severing the hydraulic line.

    He steered it into the brush with engine power to stop it.
    This one was the same operator-
    https://ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20001207X04036&key=1
    The separated blade went through a female passenger's neck. The FAA still didn't pull the Air Taxi Certificate.
     
  5. Tazjet

    Tazjet Hangar Associate Member II

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    What is most ridiculous is that this REX airlines crew had a vibration problem after take off from Canberra but elected to continue towards Sydney instead of making an immediate landing.

    They flew with the engine and prop turning for quite some time before it separated.
     
  6. Rotorruss

    Rotorruss Hangar Bronze Member II

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    Let me guess, REX didn't have a maintenance hub at Canberra but did at Sidney. That's usually what happens in the US. Of course, sometimes the business pressure is too great for the crew to do the right thing and treat the emergency. Then there's the denial that the vibration will get worse and it will go away. Who knows what goes on with the software glitches between the headsets.
     
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  7. Tazjet

    Tazjet Hangar Associate Member II

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    [​IMG]

    I would say you are probably 100% spot on, but it speaks poorly both for the airline's safety culture and for regulatory oversight in Australia. If the Government does not demand standards then airline management do behave like bullies and some third level pilot does not have the grey hairs to tell them to take a flying jump.
     
  8. Rotorruss

    Rotorruss Hangar Bronze Member II

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    Since the OP was a successful ending, it's tough for anyone who has a real eye for safety to blow the whistle and not be labeled "Chicken Little". It's sad that money overrules safety every time.

    In the US, people have lost their jobs because they did the right thing and called attention to safety lapses. It's time to put safety first and shun those who put making money first over safety and award those who stand up for doing the right thing in the name of safety!
     
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  9. Exuma Guy

    Exuma Guy Hangar Silver Member V

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    How severe was the vibration? I don't recall there being a vibration monitor on any model of SF34. I need more information before casting aspersions on the crew's judgement.
     
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